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Test Report

DIESEL ENGINE TESTING LABORATORY
PROTOTYPE DEVELOPMENT AND TRAINING CENTER
THE NATIONAL SMALL INDUSTRIES CORPORATION LTD.
BHAVNAGAR ROAD, RAJKOT – 360 003.

Report No. : PTC:DET:30/79 (IST-24) T-T-33.
Code No. : RJ/DLG/PEC/790416/A-1.
ISI REF. No. : MDA/2:613(78)

Dated: 30-4-1979.

Test for Certification mark as per Indian Standards Specifications No. 1600 and 1601 of 1960 on “POWERIN” 8 BHP, 850 RPM, Vertical Diesel Engine Sr. No. 479525.

This Report Contains:

Text Pages : 6 Pages
Index and Appendix : 1 Page
Table : 30 Pages

Test Carried Out by : HEAD OF THE LABORATORY.

HEAD OF THE CENTER

Issue of the Date Of the Report : 27-8-1979.

Summary

This Report deals with the result, of test conducted in the Diesel Engine Testing laboratory of the Prototype Development and Training Central The National Small Industries Corporation Ltd., (A Government of India Undertaking) Bhavnagar Road, RAJKOT – 360 003 on a Single Cylinder, Vertical Diesel Oil Engine, Manufactured by M/S. POWER ENGINEERING CORPORATION, 11-E, Bhaktinagar Industrial Estate, RAJKOT and rated by them at 8 BHP 850 RPM. (As per Indian Standards Condition)

Introduction :

At the instance of the Assistant Director (Marks), Indian Standards Institution, Ahmedabad Branch office Ahmedabad, vide his letter No. MDA/2:613(78) dated 30-4-79 the Diesel Engine Testing Laboratory, Prototype Development and Training Center, Rajkot under took the testing of the Engine No. 479/525 code No. A/DLG/PEC/790416/A-1 The test was started on 7-5-79 and concluded on 28-7-79.

Brief Description of the Engine :

Type “POWERIN”, Vertical 8.0 BHP 850 RPM Single cylinder, Water Coolant, Four Stroke, totally enclosed with C. I. Piston and Taper ball Bearing, Diesel Oil Engine.

Detailed specifications are given in the Appendix-I.

Object of the test :

The Tests are carried out with a view to verify the response of the engine to the specifications laid down by T. S. 1600 and 1601 of 1960 which comprise the following

  • Dimensional Verification.
  • Preliminary running of the Engine for 49 Hr for 7 hours cycles each of which is run a follows
    • 11/2 hour 25%, Full Load.
    • 2 hour 50% Full load.
    • 11/2 hour 75% Full Load.
    • 2 hour 100% Full load.

    During this period, the general behavior of the engine was observed.

  • Fuel Consumption test, during which the consumption of fuel over its entire range of loads is recorded.
  • 12 hours ratings test, as Per IIS:1601-of 1960.
  • Governing test as per 159:1601 of 1960.
  • 500 hour endurance test at rated speed, in cycles of 16 hours nonstop running each of which is made up of
    • 100% rated load 4 hour.
    • 50 % rated load 4 hour.
    • 110% rated load 1 hour.
    • 100 rated load 31/2 hour.
    • 50% rated load 31 hour.
  • Fuel consumption test As In (c)
  • 12 hours rated test as in (d).
  • Governing test as in (e).
  • Dimensional Verification as in (a)

Test Setup and Measurement :
The engine was mounted On a test bed directly coupled to a water bra]* of the type IIVM Mark 2 having a constant BHP = W X N/1000, manufactured by M/s. Hari & Co., Banglore and certified by Indian Institute of Science, Banglore. The dynamometer has its water supply from a gravity tank of constant head.

The fuel to the engine is supplied by an over head tank through a flow burette having a capacity of 50 cc by means of which the fuel consumption could be determined with A stop watch 1/10 ROCAR.

Dial type 20-600 deg. C thermometer is fitted at very close point to the engine exhaust for measurement of exhaust pas temperature.

A sampling outlet to the exhaust in provided. This to also used to measure the exhaust book pressure with the help Of a ‘U’ tube water manometer.

The cooling water outlet temperature is measured by mercury thermometer 0-110 deg. C.

The atmospheric conditions are observed by means of’ the followings :

  • Temperature : Mercury in glass thermometer of the range 0-110 deg. C. graduation upto 1.0, deg. C.
  • Pressure : Aneroid Barometer.
  • Humidity : This was calculated from the observations of dry bulb and wet, bulb thermometer readings.
  • Engine Speed This was measured in RPM by means of a hand tachometer “Smith” during the entire test.

During the entire test, the following fuel oil end lubricating oil were used :

Fuel Oil : High Speed Diesel Oil (Sp. Cr. : 0.82)

Lubricating Oil : SAE-30

Test Procedure :

  • Measurement : On receipt of the said engine in the Laboratory is was examined and found that the ISI seal was tntect.
  • Preliminary Run : After the dimensional verification the engine was mounted on the test bed with all its instruments necessary for measuring BHP, fuel consumption, exhaust temperature and cooling water outlet temperature. It was subjected to a run of 49 hours at the rated speed as indicated in 3 (b) under nominal operating temperature. During this run special attention was paid to the engine vibration and quietness. Check ups were made for tightness of components.
  • Performance Test : This test consists of three parts :

    1. Fuel Consumption Test : The Engine was run for sometime to attain a Steady working temperature of cooling water outlet and lubricating oil. The engine was run at no load and in step of 20% load up to full load and at 10% overload.
    2. Rating Test : 12 hour rating test consists of 11 hour full load at the rated speed followed by one hour run at 10% overload.
    3. Governing Test : For Governing Test, the hydraulic dynamometer was disconnected from the engine and was loaded by a brake drum of diameter 323 mm and temp. rope of dia. 25 mm and spring balance and weights were used. The engine was loaded for full load and speed was adjusted to its rated speed and then the load was suddenly taken off by loosening the rope wrapped around the brake drum. The instantaneous and steady speeds were measured by tachometer. Similarly the tests were repeated for change of each step of 20%.
  • Endurance Test : The Engine was run for 500 hour in accordance with the specified rated of loading during the 16 hour cycle as per IIS:1600-1960.
  • The correction factor for power output and specific fuel consumption were arrived at as per clause 4.2, 4.3 and 7.2 of IIS:1601-1960

Test Results :

The results thus obtained from measurement test observations have been presented in Appendices. Some of them have been summarized here for convenience.

  • During the preliminary run there was no vibration or leakage. No components was replaced.
  • The Engine developed full rated rower and the average specific fuel consumption values obtained during ratings tests were 253.5 gms/kw/hr and 256.2 gms/kw/hr before And after 500 hrs. endurance test respectively.
  • The Engine developed full power for 11 hour during the rating tests and could withstand 10% overload during 12th hour satisfactorily.
  • The specific fuel consumption and the exhaust temperature during the rating tests were reasonably constant.
  • The steady speed bond was well within 1% as required by the standard.
  • The behavior of the governor from full load to no load And vice versa was within the limit required for class B. Also for various steps of 20% load change the change of speed was within permissible limits.
  • The wear of the parts listed in clause 3.1 Of IIS:1600-1960 was recorded In appendix-III.
  • As per maintenance schedule Of the manufacturer the lubricating oil was renewed after every 250 Hrs. of run. The makeup of lubricating oil added to the sump during the period of 500 hrs. to top up the level in the sump was 3.0 liters. Lubricating oil was changed at the end of rating test before endurance and l6th 16 hrs. cycle.

Conclusion :

  • The running of the engine during preliminary run was quite satisfactory without vibration or undue heating of lubricating oil or Crank case.
  • The specific fuel consumption and the exhaust gas temperature were reasonably constant during the rating test.
  • The average lubricating oil consumption ion during the entire test was 7.7 ml/hr. This is about 0.67% of the total fuel used.
  • The steady speed band was always within limits.
  • The wear of components are tabulated In appendix-III but no replacement or reconditioning of the components were required before and after endurance run.
  • The engine controls are simple and effective.

Appendix-I Technical Data

1. Manufacturers Name and Address M/s Power Engineering Corporation, Rajkot
2. Type and Description Vertical Water Cooled, 4 stroke Single Cylinder, Cold Start, Diesel Engine with C. I. Piston.
3. Model and Serial No. of Engine “POWERIN” Brand No. 479525.
4. Bore and Stroke 114.3 mm and 139.7 mm.
5. Cubic capacity 1.433 liters
6. Horse Power and RPM 8 BHP and 850 RPM
7. Nominal Compression Ration 19:1
8. Fuel Pump MICO India 0414 481 001/HB
9. Fuel injection and Nozzle MICO India 9 430 031 215
0 433 250 005/HB
10. Fuel injection and release pressure. 140 Kg/cm2
11. Fuel injection timing 8º to 12º before T.D.C.
12. Fuel oil and specific fuel consumption High Speed Diesel Sp. Cr. : 0.B2
13. Lubricating Oil SAE-30
14. Valve tappet clearance In-let : 0.015″ (0.38 mm)
Exhaust : 0.015″ (0.38mm)
15. Valve timing AVC 5º to 8º Before TDC.
AVC 14º to 18º After BDC.
EVC 50º to 55º Before BDC.
EVC 18º to 22º After TDC.
16. Mechanical Clearance 0.045″ to 0.060″ (1.143 mm to 1.524 mm)
17. Type of covering Centrifugal Spring loaded class ‘B’ type.
18. Oil Sump capacity 4.5 liters.

Appendix-II Test Information

Name of the Laboratory
Diesel Engine Testing Laboratory, Prototype Development and Training Center. The National Small Industries Corp. Ltd. (A Government of India Undertaking), Bhavnagar Road, Rajkot – 360 003.

1. Particulars of the sample submitted :

a) Nature of Sample “POWERIN” 8 BHP, 850 RPM, Single Cylinder Vertical, Water Cooled, Four Stroke, Cycle, Cold Starting, Taper Roller bearing and C. T. Piston, Diesel Engine No. 479/525.
b) Code No. RJ/DLG/PEC/790416/A-1
c) Date of Receipt 7-5-1979
d) Quantity One
e) ISI Seal Intact
f) Performance characteristic supplied by the manufacturer

2. Site conditions of the testing place on the day of rating test

Before 500 Hrs.
Endurance Test		 After 500 Hrs.
Endurance Test
a) Altitude 140 Meters 140 Meters
b) Barometer Pressure (mm. of Kg.) 742.9 740.8
c) Air intake temperature 35.4º C 32.4º C
d) Relative Humidity 66.9 % 68.2 %
e) Dry bulb temperature 33.7º C 30.2º C
Special requirement Remarks
I. Dimensions of main parts As per 3.1 & 8.1 of ISS:1600-1960. See Appendix-III
II. Preliminary run as per clause 4 of IIS:1600-1960.
a) Rated Speed 850 RPM 850 RPM
b) Engine operating temperature Not specified Normal.
c) Vibration & Quietness – Practically No vibration quite running.
d) Lubricating oil temperature. Not specified Normal
e) Oil coolant and fuel leak – No Leakage
f) Running time of components changed when found faulty – No change or replacement of parts.
III. Performance Test Before 500 hrs. Endurance Test After 500 Hrs. Endurance Test
i) F. C. Test :
a) Brake horse power/kw.
(i) at site donation 5.94 Kw. 5.94 Kw.
(ii) Corrected to standard operating condition 5.94 Kw. 594 Kw.
b) Rated RPM 850 RPM 850 RPM
c) Fuel consumption at no load at site condition gr/hr. 371 gr/hr. 351 gr/hr.
d) Specific fuel consumption gr/kw/hr.
i) at site condition 253.5 gr/kw/hr 256.2 gr/kw/hr.
ii) Corrected to standard operating condition 253.5 gr/kw/hr 256.2 gr/kw/hr.
IV. 12 Hour Rating Test :
a) Lubricating oil
i) Temperature rise 320º C. 29º C.
ii) Consumption – –
b) Fuel injection release pressure kgf/cm2 140 Kgf/cm2 140 Kgf/cm2
c) Cooling Water :
i) Average inlet temperature
Outlet		 33.6º C
35.3º C		 35.3º C
40.3º C
V. Governing Test :
See Appendix – IV.

4. External means for adjusting the nominal speed of the engine by an agreed amount – provided

Note : The fuel used for performance test before and after endurance test was from the same consignment.

APPENDIX - III - Dimensions of the Major Parts of the Engine

1. MEASUREMENT OF CYLINDER LINER

Model Vertical “POWERIN”
B. H. P. / Speed 8/5.88 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 8-5-79
Dt. After Endurance Test 24-7-79
DIAMETER AT
DV BT AT WEAR
DX DY DX DY DX DY DX DY
114.3 0.025 114.305 114.290 114.306 114.296 0.001 0.006
114.3 0.025 114.305 114.285 114.311 114.290 0.006 0.005
114.3 0.025 114.301 114.290 114.305 114.295 0.004 0.005
114.3 0.025 114.301 114.290 114.303 114.295 0.002 0.005
114.3 0.025 114.300 114.288 114.300 114.290 0.000 0.002
SURFACE CONDITION – Normal Normal
(BRUNT – PITTED
ERODED – SCORED
LACQUERED)		 DV BT AT
Nil – –

2. MEASUREMENT OF PISTON

Model Vertical “POWERIN”
B. H. P. / Speed 8/5.88 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 8-5-79
Dt. After Endurance Test 24-7-79
DIAMETER AT
DV BT AT WEAR
ØX ØY ØX ØY ØX ØY ØX ØY
114.3 0.457
0.406		 113.875 113.875 113.875 113.875 0.000 0.000
114.3 0.178
0.229		 114.20 114.20 114.20 114.20 0.000 0.000
114.3 0.076
0.127		 114.185 114.195 114.185 114.195 0.000 0.000
GROOVE
DV BT AT WEAR
WIDTH WIDTH WIDTH WIDTH WIDTH WIDTH WIDTH WIDTH
3.2 + 0.051
+ 0.025		 3.20 4.1800 3.21 4.180 0.010 0.000
3.2
+ 0.051
+ 0.025		 4.267
± .127		 3.20 4.1800 3.20 4.180 0.000 0.000
3.2
+ 0.051
+ 0.025		 4.267
± .127		 3.20 4.1800 3.20 4.180 0.000 0.000
3.2
+ 0.051
+ 0.025		 4.267
± .127		 3.20 4.1800 3.20 4.180 0.000 0.000
4.775
+ 0.050
+ 0.025		 4.267
± .127		 4.80 4.2355 4.80 4.2355 0.000 0.000

3. MEASUREMENT OF PISTON RINGS

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 8-5-79
Dt. After Endurance Test 24-7-79
RING NO. RADIAL THICKNESS WIDTH
DV BT AT WEAR DV BT AT WEAR
1. 3.962
± 0.114		 3.886 3.878 0.008 3.175
-0.025
-0.051		 3.140 3.140 0.000
2. 3.962
± 0.114		 3.899 3.886 0.013 3.175
-0.025
0.051		 3.145 3.145 0.000
3. 3.962
± 0.114		 3.886 3.866 0.020 3.175
-0.025
-0.051		 3.150 3.150 0.000
4. 3.962
± 0.114		 3.891 3.881 0.010 3.175
-0.025
-0.051		 3.150 3.140 0.010
5. 3.962
± 0.114		 3.868 3.861 0.007 4.775
-0.025
-0.051		 4.730 4.725 0.005
RING NO. FREE GAP CLOSED GAP
DV BT AT WEAR DV BT AT WEAR
1. 14.288
±0.794		 16.50 16.45 0.04 0.203 to 0.410 0.203 0.229 0.026
2. 14.288
±0.794		 16.02 16.00 0.02 0.203 to 0.410 0.203 0.203 0.000
3. 14.288
±0.794		 15.55 15.50 0.05 0.203 to 0.410 0.178 0.203 0.025
4. 14.288
±0.794		 17.32 17.30 0.02 0.203 to 0.410 0.178 0.203 0.025
5. 14.288
±0.794		 16.82 16.80 0.02 0.203 to 0.410 0.356 0.406 0.050
RING NO. DV
(gms)		 BT
(gms)		 AT
(gms)		 LOSS
(gms)
1. 30 gms ± 3 gms 29.794 29.642 0.152
2. 30 gms ± 3 gms 29.883 29.852 0.031
3. 30 gms ± 3 gms 29.841 29.812 0.029
4. 30 gms ± 3 gms 29.877 29.856 0.021
5. 30 gms ± 3 gms 29.483 29.461 0.022
SURFACE CONDITION – – –
(BRUNT – PITTED
ERODED – SCORED
LACQUERED)		 DV BT AT
– Normal Normal
Remark Nil Free gap DV & BT does not tally.

4. MEASUREMENT OF GUDGEON PIN GUDGEON PIN BORE & SMALL END CONNECTING ROD

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 9-5-79
Dt. After Endurance Test 25-7-79
BEFORE TEST
PISTON PIN BORE GUDGEON PIN DIA. CLEARANCE
BETWEEN		 SMALL END
BEARING BUSH		 CLEARANCE
BETWEEN
DV 31.750 + 0.008
– 0.018		 31.750 + 0.008
– 0.015		 – 31.75 + 0.025
– 0.000		 –
1 2 3 4 5 1 & 3 2 & 5 6 7 4 & 6 4 & 7
a 31.75 31.75 31.735 31.725 31.735 0.015 0.015 31.77 31.77 0.045 0.045
b 31.75 31.75 31.735 31.725 31.735 0.015 0.015 31.76 31.76 0.035 0.035
AFTER TEST
PISTON PIN BORE GUDGEON PIN DIA. CLEARANCE
BETWEEN		 SMALL END
BEARING BUSH		 CLEARANCE
BETWEEN
DV 1 2 3 4 5 1 & 3 2 & 5 6 7 4 & 6 4 & 7
a 31.750 31.750 31.73 31.725 31.730 0.020 0.020 31.785 31.785 0.060 0.060
b 31.750 31.750 31.73 31.725 31.73 0.020 0.020 31.78 31.78 0.055 0.055
Remarks : Nil
(BRUNT – PITTED
ERODED – SCORED
LACQUERED)		 DV BT AT
GUDGEON PIN – Clear Clear
GUDGEON PIN – Clear Clear

5. MEASUREMENT OF BIG END BEARING CRANK SHAFT JOURNALS & CRANK PIN DIAMETERS

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 9-5-79
Dt. After Endurance Test 25-7-79

Note : Taper Roller bearing No. 32211 SKF is used in the sample

1 2 3 4 5 6 7
a b a b a b a b a b a b a b
DV
BT
AT
WEAR
8 9 10 11 12
a b a b a b a b a b
DV 63.5
-0.030
-0.061		 63.5
+0.030
+0.000
BT 63.43 63.43 63.43 63.43 63.535 63.465 63.475 63.518
AT 63.43 63.43 63.43 63.43 63.575 63.514 63.500 63.533
WEAR 0.000 0.000 0.000 0.000 0.040 0.049 0.025 0.015
Remark : The white metal lining from the cap of the connecting rod bearing near the oil dipper pitted away near by 100 sq. mm. and it is approximately 0.084%.
SURFACE CONDITION BURNT PITTED ERODED SCORED LACQUERED PART NAME DV BT AT
– MAIN BRG. P.S .
MAIN BRG. G.S.
M. B. JOURNAL PS
M. B. JOURNAL GS
CRANK PIN
BIG END BEARING

6. CYLINDER HEAD

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 9-5-79
Dt. After Endurance Test 25-7-79

Note : Taper Roller bearing No. 32211 SKF is used in the sample

– DV BT AT WEAR
INLET 1.143 to 1.524 1.360 1.380 0.020
EXHAUST 1.143 TO 1.524 1.360 1.400 0.040
– DV BT AT
VALVE SURFACE CONDITION (PITTING, EROSION BURNING ETC.) INLET – Clear Normal.
EXHAUST – Clear Not carbon deposited
– DV BT AT
CYLINDER HEAD SURFACE CONDITION (PITTING, EROSION, SCRATCHES, WRAPPING ETC.) – Good Good

7. MEASUREMENT CAMSHAFT BEARING

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 9-5-79
Dt. After Endurance Test 25-7-79
1 2 3 4 5 6 7 8
a b a b a b a b a b a b a b a b
DV 22.225
+0.030
+0.000		 22.225
+0.030
+0.000		 22.225
+0.020
+0.051		 22.225
+0.020
+0.051
BT 22.22 22.23 22.22 22.23 22.22 22.22 22.22 22.22 22.205 22.205 22.205 22.205 22.205 22.205 22.205 22.205
AT 22.235 22.235 22.235 22.235 22.24 22.24 22.24 22.24 22.205 22.205 22.205 22.205 22.205 22.205 22.205 22.205
WEAR 0.015 0.005 0.015 0.005 0.020 0.020 0.020 0.020 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
SURFACE CONDITION DV BT AT
– BEARING 1,2 – Normal Normal
CAM SHAFT 5,6 – Normal Normal
BEARING 3,4 – Normal Normal
CAM SHAFT 7,8 – Normal Normal
Remark : Nil

8. MEASUREMENT CAMSHAFT BEARING

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 9-5-79
Dt. After Endurance Test 25-7-79
DV BT AT INCREASE
FACE DEPTH
FT.		 INLET 4.3637
± 0.127		 4.59 4.62 0.03
EXHAUST 4.3637
± 0.127		 4.56 4.62 0.06
DV BT AT
SURFACE CONDITION
(PITTING, BURNING, CRACKS, SCRATCHES ETC.		 INLET Ground & Lapped Clear Clear
EXHAUST Ground & Lapped Clear Slightly Pitted
DIA LENGTH
STEM DV BT AT WEAR DV BT AT WEAR
INLET 11.113
– 0.051
– 0.091		 11.04 11.04 0.00 165.1
± 0.254		 65.02 165.02 0.00
EXHAUST 11.113
– 0.051
– 0.091		 1.045 11.045 0.00 165.1
± 0.254		 65.00 164.96 0.040
DV BT AT
SURFACE CONDITION
(MUSHROOMING AT TOP, UNEVEN TOP CONTACT (WITH GUIDE)		 INLET – Clear Clear
EXHAUST – Clear Clear
Remarks : Face depth BT & DV does not tally.

9. MEASUREMENT OF B. E. BEARING BOLTS AND BEARING CAP

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 9-5-79
Dt. After Endurance Test 25-7-79
DIMENSIONS
DV BT AT
LENGTH L1 96.044 ± 0.787 94.50 94.50
LENGTH L2 96.044 ± 0.787 94.340 94.340
GAP K 0.076 to 0.254 0.125 0.125
SURFACE CONDITION
DV BT AT
BOLT 1 – Normal Normal
BOLT 2 – Normal Normal
Remark : Bolt length does not tally.

10. VALVE SPRINGS & GOVERNOR SPRING

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
RATE LENGTH C.
DV BT AT DB BT AT
INLET INNER 4 Kg/cm
± 0.5 Kg/cm		 3.33 Kg/cm 3.30 Kg/cm 80.962 84.0 83.0
OUTER 3 Kg/cm
± 0.5 Kg/cm		 3.33 Kg/cm 3.30 Kg/cm 68.262 68.7 68.0
EXHAUST INNER 4 Kg/cm
± 0.5 Kg/cm		 3.33 Kg/cm 3.23 Kg/cm 80.962 84.2 89.92
OUTER 3 Kg/cm
± 0.5 Kg/cm		 3.50 Kg/cm 3.40 Kg/cm 68.262 68.7 68.0
GOVERNOR 1.4 Kg/cm
± 0.250 Kg/cm		 1.3 Kg/cm 1.25 Kg/cm 65.088 63.10 64.10
DV BT AT
SURFACE CONDITION INLET – Normal Normal
EXHAUST – Normal Normal
GOVERNOR – Normal Normal

Remark : Spring rating inlet, exhaust inner and spring lengths DV and BT does not tally.

11. VALVE TIMING DIAGRAM

Model Vertical “POWERIN”
B. H. P. / Speed 8 / 850 R.P.M.
Engine Sr. No. 479/525
Dt. Before Endurance Test 9-5-79
Dt. After Endurance Test 27-7-79
1. TYPE OF ENGINE VERTICAL “POWERIN”
2. ENGINE NO. 479/525
DV BT AT
3. AIR VALVE OPENS B.T.D.C. LA 5º-8º 7º 7º
4. AIR VALVE CLOSES
A.B.D.C. LB		 14º-18º 16º 16º
5. EXH. VALVE OPENS
B.B.D.C. LC		 50º-55º 51º 51º
6. EXH. VALVE CLOSES
A.T.D.C LD		 18º-22º 18º 18º
7. FUEL INJECTION STARTS
(By Spill cut off) B.T.D.C.		 18º-22º 20º 20º

Appendix-III-A Hardness

DV BT AT
1. Piston 83 HRB (Min) 93 HRB 91 HRB
2. Cylinder Head 83 HRB (Min) 95 HRB 98 HRB
3. Cylinder Liner 83 HRB (Min) 98 HRB 95 HRB
4. Valves :
Inlet 80 HRB (Min) 92 HRB 92 HRB
Exhaust 80 HRB (Min) 91 HRB 90 HRB
5. Crank Shaft 80 HRB (Min) 93 HRB 95 HRB
6. Piston Rings :
(i) 83 HRB (Min) 103 HRB 101 HRB
(ii) 83 HRB (Min) 103 HRB 102 HRB
(iii) 83 HRB (Min) 102 HRB 102 HRB
(iv) 83 HRB (Min) 102 HRB 102 HRB
(v) 83 HRB (Min) 101 HRB 97 HRB
7. Cudgeon Pin 45 HRB (Min) 55 HRC 55 HRC
8. Cam Shaft 83 HRB (Min) 93 HRB 95 HRB

Appendix-IV Governing Test Table (Before and After endurance)

Type : Vertical “POWERIN” T-T-33. ISI-24
BHP : 8 BHP/5.88 kw
RPM : 850 R.P.M.
Engine No. : 479525

BEFORE ENDURANCE DATE : 1-6-1979
SR. NO. Load Initial
Speed
in
R. P. M.		 Temporary
Speed
in
R. P. M.		 Temporary Change Permanent
speed
in
R. P. M.		 Permanent Change
in R. P. M. in % in R. P. M. in %
1. FL to NL 850 890 40 4.7 880 30 3.5
2. NL to FL 880 840 40 4.7 850 30 3.5
3. FL to 80% FL 850 860 10 1.17 855 5 0.6
4. 80% FL to FL 855 850 5 0.6 850 5 0.6
5. 80% FL to 60% FL 855 865 10 1.17 860 5 0.6
6. 60% FL to 80% FL 860 850 10 1.17 855 5 0.6
7. 60% FL to 40% FL 860 870 10 1.17 865 5 0.6
8. 40% FL to 60% FL 865 850 15 1.76 860 5 0.6
9. 40% FL to 20% FL 865 890 25 2.94 880 15 1.76
10. 20% FL to 40% Fl 880 860 20 2.35 865 15 1.76
11. 20% FL to NL 880 890 10 1.17 885 5 0.6
12. NL to 20% FL 885 870 15 1.76 880 5 0.6
AFER ENDURANCE DATE : 18-7-1979
SR. NO. Load Initial
Speed
in
R. P. M.		 Temporary
Speed
in
R. P. M.		 Temporary Change Permanent
speed
in
R. P. M.		 Permanent Change
in R. P. M. in % in R. P. M. in %
1. FL to NL 850 910 60 7.06 900 50 5.9
2. NL to FL 900 835 65 7.65 850 50 5.9
3. FL to 80% FL 850 865 15 1.8 860 5 0.6
4. 80% FL to FL 860 840 20 2.35 850 10 1.17
5. 80% FL to 60% FL 860 870 10 1.17 870 00 00
6. 60% FL to 80% FL 870 850 20 2.35 860 10 1.17
7. 60% FL to 40% FL 870 885 15 1.8 880 10 1.17
8. 40% FL to 60% FL 880 860 20 2.35 870 10 1.17
9. 40% FL to 20% FL 880 900 20 2.35 890 10 1.17
10. 20% FL to 40% Fl 890 870 20 2.35 880 10 1.17
11. 20% FL to NL 890 905 15 1.8 900 10 1.17
12. NL to 20% FL 900 880 20 2.35 890 10 1.17

Appendix-V Fuel Consumption Test Table (Before and After endurance test)

“POWERIN” ENGINE FUEL CONSUMPTION TEST

T-T-33.    ISI-24
Date : 29-5-1979
Type : Vertical Barometer : 745 mm of Hg.
BHP : 8 BHP/5.88 kw Temperature : 34ºC. (AIR INTAKE)
RPM : 850 R.P.M. Humidity : 74%
Engine No. : 479525
BEFORE ENDURANCE TEST
Load in Kg. Speed R.P.M. Power Observed KW. Power Corrected KW. Fuel Time for Gms in Sec. Fuel Consumption Cooling Water Temp ºC Exhaust Gas Temp ºC Exhaust back pressure mm of H REMARKS
Fuel Cons. umption Gms/hr. S.F.C. Gms/ KW / hr. Inlet Outlet
NO LOAD 895 – – 398 371 – 31 32 65 6 –
1.9 880 1.22 1.22 276 535 538.5 31 32 90 6 –
3.8 875 2.44 2.44 208 709.6 290.8 32 34 120 12 –
5.7 865 3.62 3.62 154 958 264.6 32 35 160 12 –
7.6 855 4.78 4.78 123 1200 251.0 32 36 200 18 –
9.5 850 5.94 8.94 98 1506 253.5 33 38 260 18 –
10.4 840 6.42 6.42 87 1697 264.3 33 39 300 25 –
T-T-33.    ISI-24
Date : 13-7-1979
Type : Vertical Barometer : 740 mm of Hg.
BHP : 8 BHP/5.88 kw Temperature : 33ºC. (AIR INTAKE)
RPM : 850 R.P.M. Humidity : 58%
Engine No. : 479525
AFTER ENDURANCE TEST
Load in Kg. Speed R.P.M. Power Observed KW. Power Corrected KW. Fuel Time for Gms in Sec. Fuel Consumption Cooling Water Temp ºC Exhaust Gas Temp ºC Exhaust back pressure mm of H REMARKS
Fuel Cons. umption Gms/hr. S.F.C. Gms/ KW / hr. Inlet Outlet
NO LOAD 920 – – 420 351 – 40 41 80 6 –
1.9 890 1.24 1.24 270 547 440.8 40 42 100 12 –
3.8 875 2.44 2.44 193 765 313.4 40 42 130 12 –
5.7 870 3.64 3.64 154 958 263.3 40 43 160 12 –
7.6 865 4.8 4.8 123 1200 250.0 40 43 230 18 –
9.5 850 5.94 5.94 97 1522 256.2 40 45 270 18 –
10.4 840 6.42 6.42 87 1697 264.3 40 46 300 25 –

Appendix-VI Rating Test Table (Before and After endurance test)

“POWERIN” ENGINE RATING TEST

BEFORE ENDURANCE TEST

T-T-33. ISI-24            Date : 31-5-79
Engine Manufacturer : M/s Power Engineering Corp. Rajkot Sheet No. : 1   of  : 1
Model : “POWERIN”     Serial No. : 479525   No. of Cylinder : One Altitude : 140 Meters
Rated R.P.M. : 850 RPM  BHP /KW  8 BHP/5.88 Kw. Nominal Compression Ratio : 19:1
Bore : 114.3 mm.   Stroke : 139.7 mm.  Cubic Capacity : 1.433 Ltr. Fuel Specification : H.S.D. Sp. Gr. : 0.82
Place of Test : Rajkot Oil Specification : SAE-30
Tester : D. K. Aghera Dynamometer Type : Hydraulic Dynameters
Observers : B. K. Rathod Arm Length : W X N = KW  ( W X N  = BHP)
Constant      1360               1000

Engine started & loaded @ 6-00 Hrs.

Engine stopped @ 18-00 Hrs.

Initial Lub. Oil Temp : 29º C.

Final Lub. Oil Temp : 61º C.

TIME BARO
METER
mm of
Hg		 AIR TEMP º c RELA-
TIVE
HUMI-
DITY
%		 EXHA-
UST
PRES-
SURE
mm of
H2º		 CORRE-
CTION
FACTOR
for
power		 OBSE-
RVED
R.P.M.		 BRAKE
LOAD
IN
KG.		 CALCU-
LATED
KW.		 CORR-
ECTED
KW.		 corre-
ction on factor for FUEL		 FUEL CONSUMPTION COOLING WATER TEMP. º c EXHA-
UST
GAS
TEMP
º c
WET
BULB		 DRY
BULB		 ENGINE
IN TAKE		 F. C. TIME for 41 gms. F. C. RATE Gms/Hr. S.F.C. G/Kw Hr. CORR-
ECTED
S.F.C. G/kw/
hr		 IN LET OUT LET
6:30 744 26.4 29.2 31 79 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 30 35 260
7:00 744 26.8 29.2 31 85 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 30 35 260
7:30 744 26.8 29.2 31 85 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 30 35 260
8:00 744 26.6 28.6 31 85 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 31 36 260
8:30 744 26.4 29.2 31 79 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 31 36 260
9:00 744 26.4 29.8 31 75 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 31 36 260
9:30 744 27.0 30.4 32 76 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 31 36 260
10:00 744 26.4 31.4 32 66 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 31 36 260
10:30 744 26.8 32.2 34 64 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 32 37 270
11:00 744 26.8 33.0 35 60 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 32 37 270
11:30 744 26.8 34.0 35 61 18 1.00 850 9.5 5.94 5.95 1.00 99 1491 251.0 251.0 32 37 270
12:00 744 28.0 34.6 36 59 18 1.002 850 9.5 5.94 5.95 0.999 99 1491 251.0 250.7 32 37 270
12:30 744 28.6 35.0 37 60 18 1.005 850 9.5 5.94 5.97 0.998 99 1491 251.0 250.5 33 38 270
13:00 743 28.8 35.8 38 58 18 1.008 850 9.5 5.94 5.98 0.998 100 1476 248.5 248.0 35 40 270
13:30 743 30.0 36.4 38 61 18 1.008 850 9.5 5.94 5.98 0.998 100 1476 248.5 248.0 35 40 270
14:00 743 29.8 36.6 39 59 18 1.010 850 9.5 5.94 5.99 0.997 100 1476 248.5 247.7 36 41 270
14:30 742 28.6 37.6 40 54 18 1.013 850 9.5 5.94 6.00 0.996 101 1461 246.0 245.0 36 41 270
15:00 742 29.6 38.0 40 52 18 1.013 850 9.5 5.94 6.00 0.996 100 1476 248.5 247.5 37 42 270
15:30 741 29.2 37.8 40 51 18 1.013 850 9.5 5.94 6.00 0.996 99 1491 251.0 250.0 37 42 270
16:00 741 28.6 37.6 39 49 18 1.010 850 9.5 5.94 5.99 0.997 99 1491 251.0 250.2 37 42 270
16:30 741 26.2 37.0 39 49 18 1.010 850 9.5 5.94 5.99 0.997 99 1491 251.0 250.2 37 42 270
17:00 741 27.6 35.8 37 51 18 1.005 850 9.5 5.94 5.97 0.998 99 1491 251.0 250.5 37 42 270
17:30 741 27.8 35.8 37 52 25 1.005 840 10.4 6.42 6.45 0.998 88 1677 261.0 250.5 37 43 305
18:00 741 27.8 35.8 37 52 25 1.005 840 10.4 6.42 6.45 0.998 88 1677 261.0 250.5 37 43 305

AFTER ENDURANCE TEST

T-T-33. ISI-24            Date : 17-7-79
Engine Manufacturer : M/s Power Engineering Corp. Rajkot Sheet No. : 1   of  : 1
Model : “POWERIN”     Serial No. : 479525   No. of Cylinder : One Altitude : 140 Meters
Rated R.P.M. : 850 RPM  BHP /KW  8 BHP/5.88 Kw. Nominal Compression Ratio : 19:1
Bore : 114.3 mm.   Stroke : 139.7 mm.  Cubic Capacity : 1.433 Ltr. Fuel Specification : H.S.D. Sp. Gr. : 0.82
Place of Test : Rajkot Oil Specification : SAE-30
Tester : D. K. Aghera Dynamometer Type : Hydraulic Dynameters
Observers : B. K. Rathod Arm Length : W X N = KW  ( W X N  = BHP)
Constant      1360               1000

Engine started & loaded @ 8-30 Hrs.

Engine stopped @ 20-30 Hrs.

Initial Lub. Oil Temp : 29º C.

Final Lub. Oil Temp : 58º C.

TIME BARO
METER
mm of
Hg		 AIR TEMP º c RELA-
TIVE
HUMI-
DITY
%		 EXHA-
UST
PRES-
SURE
mm of
H2º		 CORRE-
CTION
FACTOR
for
power		 OBSE-
RVED
R.P.M.		 BRAKE
LOAD
IN
KG.		 CALCU-
LATED
KW.		 CORR-
ECTED
KW.		 corre-
ction on factor for FUEL		 FUEL CONSUMPTION COOLING WATER TEMP. º c EXHA-
UST
GAS
TEMP
º c
WET
BULB		 DRY
BULB		 ENGINE
IN TAKE		 F. C. TIME for 41 gms. F. C. RATE Gms/Hr. S.F.C. G/Kw Hr. CORR-
ECTED
S.F.C. G/kw/
hr		 IN LET OUT LET
9:00 742 25.8 28.8 30 78 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 31 36 265
9:30 742 25.8 29.4 31 74 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 31 36 265
10:00 742 28.8 29.6 31 73 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 31 36 265
10:30 742 25.8 29.8 31 71 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 31 38 265
11:00 742 25.2 29.8 31 67 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 32 37 265
11:30 742 25.4 30.2 33 67 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 32 37 265
12:00 741 26.4 30.6 34 70 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 32 37 265
12:30 741 26.6 31.0 34 69 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 251.0 32 37 265
13:00 740 26.4 31.4 34 66 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 33 38 265
13:30 740 26.4 31.4 34 66 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 35 40 265
14:00 740 25.8 31.2 34 63 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 253.5 36 41 265
14:30 740 25.6 31.0 34 63 18 1.00 850 9.5 5.94 5.95 1.00 99 1491 251.0 251.0 37 42 265
15:00 740 25.4 31.0 34 62 18 1.00 850 9.5 5.94 5.97 1.00 98 1506 253.5 253.5 37 42 265
15:30 740 25.4 30.6 33 64 18 1.00 850 9.5 5.94 5.98 1.00 98 1506 253.5 253.5 37 42 265
16:00 740 25.4 30.8 33 63 18 1.00 850 9.5 5.94 5.98 1.00 98 1506 253.5 253.5 36 41 265
16:30 740 25.8 30.8 33 66 18 1.00 850 9.5 5.94 5.99 1.00 98 1506 253.5 253.5 36 41 265
17:00 740 25.6 30.2 32 68 18 1.00 850 9.5 5.94 6.00 1.00 98 1506 253.5 253.5 36 41 265
17:30 740 25.4 30.2 32 67 18 1.00 850 9.5 5.94 6.00 1.00 98 1506 253.5 253.5 37 42 265
18:00 740 25.4 30.0 32 68 18 1.00 850 9.5 5.94 6.00 1.00 98 1506 253.5 253.5 38 43 265
18:30 740 25.4 30.0 32 68 18 1.00 850 9.5 5.94 5.99 1.00 98 1506 253.5 253.5 38 43 265
19:00 740 25.4 29.6 32 70 18 1.00 850 9.5 5.94 5.99 1.00 98 1506 253.5 253.5 39 44 265
19:30 740 25.4 29.6 32 70 18 1.00 850 9.5 5.94 5.97 1.00 98 1506 253.5 253.5 39 44 265
20:00 741 25.2 29.0 31 72 25 1.00 840 10.4 6.42 6.45 1.00 89 1658 258.3 258.3 40 45 285
20:30 741 25.2 29.0 31 72 25 1.00 840 10.4 6.42 6.45 1.00 89 1658 258.3 258.3 40 45 285

Appendix-VII Log Sheets of Endurance Test (1, 8, 16, 24 & 32 Cycles)

THE NATIONAL SMALL INDUSTRIES CORPORATION LTD. (A GOVERNMENT OF INDIA UNDERTAKING)

PROTOTYPE PRODUCTION AND TRAINING CENTER, RAJKOT

Endurance Run : 1/32 Cycle : 16 Hrs.
Test Report No. : T-T-33 ISI-24     Date of Test: 4-6-79
Engine Manufacturer : M/s Power Engineering Corp. Rajkot
Type : Vertical “POWERIN”
Rated BHP : 8BHP/5.88 KW RPM : 850 RPM
Engine No. :  479525

Initial Lub. Oil Temp. : 30ºC.

Final Lub. Oil Temp. : 58ºC.

Engine started & loaded @ 6-00 Hrs.

Engine stopped @ 22-00 Hrs.

TIME BARO
METER
mm of
Hg		 AIR TEMP º c RELA-
TIVE
HUMI-
DITY
%		 EXHA-
UST
PRES-
SURE
mm of
H2º		 CORRE-
CTION
FACTOR
for
power		 OBSE-
RVED
R.P.M.		 BRAKE
LOAD
IN
KG.		 CALCU-
LATED
KW.		 CORR-
ECTED
strong>KW.		 corre-
ction on factor for FUEL		 FUEL CONSUMPTION COOLING WATER TEMP. º c EXHA-
UST
GAS
TEMP
º c		 EXHA-
UST
GAS
TEMP
º c
WET
BULB		 DRY
BULB		 ENGINE
IN TAKE		 F. C. TIME for 41 gms. F. C. RATE Gms/Hr. S.F.C. G/Kw Hr. IN LET OUT LET
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
7 745 27.2 29.2 31 85 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 30 35 – – 260 – 253.5
8 745 27.4 29.8 31 82 18 1.00 850 9.5 5.94 5.94 1.00 97 1522 256.0 30 35 – – 265 – 265.0
9 745 27.4 30.4 31 79 18 1.00 850 9.5 5.94 5.94 1.00 97 1522 256.0 31 36 – – 270 – 256.0
10 745 26.8 32.0 33 65 18 1.00 850 9.5 5.94 5.94 1.00 97 1522 256.0 31 36 – – 290 – 256.0
11 745 26.6 33.4 35 57 12 1.00 865 4.75 3.02 3.02 1.00 175 843 279.0 32 35 – – 150 – 279.0
12 745 26.2 34.8 36 48 12 1.002 865 4.75 3.02 3.03 0.999 175 843 279.0 32 35 – – 150 – 278.7
13 745 27.0 36.0 38 47 12 1.008 865 4.75 3.02 3.04 0.998 175 843 279.0 33 36 – – 150 – 278.4
14 743 28.4 37.0 38 50 12 1.008 865 4.75 3.02 3.04 0.998 176 838 277.5 33 36 – – 150 – 277.0
15 742 29.0 38.2 40 48 25 1.013 840 10.4 6.42 6.5 0.996 85 1737 270.5 35 41 – – 320 – 269.4
16 741 28.6 39.4 41 42 18 1.015 850 9.5 5.94 6.02 0.996 97 1522 256.0 36 41 – – 280 – 255.0
17 741 29.0 39.4 41 44 18 1.015 850 9.5 5.94 6.02 0.996 96 1538 259.0 36 41 – – 280 – 258.0
18 741 28.6 38.0 40 47 18 1.013 850 9.5 5.94 6.00 0.996 96 1538 259.0 36 41 – – 280 – 258.0
18:30 741 28.6 37.6 40 49 18 1.013 850 9.5 5.94 6.00 0.996 96 1538 259.0 36 41 – – 280 – 258.0
19 742 28.4 36.8 38 52 12 1.008 865 4.75 3.02 3.04 0.998 178 829 274.5 37 40 – – 155 – 274.0
20 742 27.4 35.4 37 52 12 1.005 865 4.75 3.02 3.03 0.998 178 829 274.5 37 40 – – 155 – 274.0
21 743 26.8 34.2 36 54 12 1.002 865 4.75 3.02 3.03 0.999 177 834 276.0 37 40 – – 155 – 275.7
22 743 26.0 33.0 34 55 12 1.00 865 4.75 3.02 3.02 1.00 177 834 276.0 37 40 – – 155 – 276.0
Endurance Run : 8/32 Cycle : 128 Hrs.
Test Report No. : T-T-33 ISI-24     Date of Test: 12-6-79
Engine Manufacturer : M/s Power Engineering Corp. Rajkot
Type : Vertical “POWERIN”
Rated BHP : 8BHP/5.88 KW RPM : 850 RPM
Engine No. :  479525

Initial Lub. Oil Temp. : 31ºC.

Final Lub. Oil Temp. : 63ºC.

Engine started & loaded @ 6-00 Hrs.

Engine stopped @ 22-00 Hrs.

TIME BARO
METER
mm of
Hg		 AIR TEMP º c RELA-
TIVE
HUMI-
DITY
%		 EXHA-
UST
PRES-
SURE
mm of
H2º		 CORRE-
CTION
FACTOR
for
power		 OBSE-
RVED
R.P.M.		 BRAKE
LOAD
IN
KG.		 CALCU-
LATED
KW.		 CORR-
ECTED
KW.		 corre-
ction on factor for FUEL		 FUEL CONSUMPTION COOLING WATER TEMP. º c EXHA-
UST
GAS
TEMP
º c		 EXHA-
UST
GAS
TEMP
º c
WET
BULB		 DRY
BULB		 ENGINE
IN TAKE		 F. C. TIME for 41 gms. F. C. RATE Gms/Hr. S.F.C. G/Kw Hr. IN LET OUT LET
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
7 739 26.2 30.0 32 73 18 1.00 850 9.5 5.94 5.94 1.00 95 1554 261.5 32 37 – – 270 – 261.5
8 739 26.0 30.0 32 71 18 1.00 850 9.5 5.94 5.94 1.00 95 1554 261.5 32 37 – – 270 – 261.5
9 740 26.2 30.8 32 68 18 1.00 850 9.5 5.94 5.94 1.00 96 1538 259.0 38 33 – – 270 – 259.0
10 740 26.2 32.8 34.6 58 18 1.00 850 9.5 5.94 5.94 1.00 96 1538 259.0 33 38 – – 270 – 259.0
11 740 26.4 33.8 35 54 12 1.00 865 4.75 3.02 3.02 1.00 178 829 274.5 33 36 – – 150 – 274.5
12 739 26.8 35.4 37 53 12 1.005 865 4.75 3.02 3.04 0.998 177 834 276.2 33 36 – – 150 – 275.7
13 739 27.0 36.8 39 44 12 1.010 865 4.75 3.02 3.05 0.997 178 829 274.5 33 36 – – 150 – 273.7
14 739 27.0 37.8 40 41 12 1.013 865 4.75 3.02 3.06 0.996 179 825 273.2 35 36 – – 150 – 272.1
15 737 28.2 38.0 40 45 25 1.013 835 10.4 6.38 6.46 0.996 84 1757 275.4 35 41 – – 320 – 274.3
16 737 28.2 38.0 40 45 18 1.013 850 9.5 5.94 6.02 0.996 96 1538 259.0 35 40 – – 270 – 257.9
17 737 27.6 37.4 39 45 18 0.010 850 9.5 5.94 6.00 0.997 96 1538 259.0 36 41 – – 270 – 258.2
18 737 27.0 36.4 38 46 18 1.008 850 9.5 5.94 5.99 0.998 95 1554 261.5 36 41 – – 270 – 260.9
18:30 737 27.2 35.6 37 56 18 1.005 850 9.5 5.94 5.97 0.998 96 1558 259.0 36 41 – – 270 – 258.4
19 737 26.6 34.8 36 37 12 1.002 865 4.75 3.02 3.03 0.999 177 834 276.2 36 39 – – 150 – 275.9
20 737 26.4 33.6 35 55 12 1.00 865 4.75 3.02 3.02 1.00 175 843 279.0 39 36 – – 150 – 279.0
21 738 26.6 32.6 34 61 12 1.00 865 4.75 3.02 3.02 1.00 174 848 280.8 36 39 – – 150 – 280.8
22 738 26.6 32.4 33 62 12 1.00 865 4.75 3.02 3.02 1.00 174 848 280.8 36 39 – – 150 – 280.8
Endurance Run : 16/32 Cycle : 256 Hrs.
Test Report No. : T-T-33 ISI-24     Date of Test: 21-6-79
Engine Manufacturer : M/s Power Engineering Corp. Rajkot
Type : Vertical “POWERIN”
Rated BHP : 8BHP/5.88 KW RPM : 850 RPM
Engine No. :  479525

Initial Lub. Oil Temp. : 30ºC.

Final Lub. Oil Temp. : 59ºC.

Engine started & loaded @ 6-00 Hrs.

Engine stopped @ 22-00 Hrs.

TIME BARO
METER
mm of
Hg		 AIR TEMP º c RELA-
TIVE
HUMI-
DITY
%		 EXHA-
UST
PRES-
SURE
mm of
H2º		 CORRE-
CTION
FACTOR
for
power		 OBSE-
RVED
R.P.M.		 BRAKE
LOAD
IN
KG.		 CALCU-
LATED
KW.		 CORR-
ECTED
KW.		 corre-
ction on factor for FUEL		 FUEL CONSUMPTION COOLING WATER TEMP. º c EXHA-
UST
GAS
TEMP
º c		 EXHA-
UST
GAS
TEMP
º c
WET
BULB		 DRY
BULB		 ENGINE
IN TAKE		 F. C. TIME for 41 gms. F. C. RATE Gms/Hr. S.F.C. G/Kw Hr. IN LET OUT LET
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
7 741 26.2 28.6 30 75 18 1.00 850 9.5 5.94 5.94 1.00 94 1570 264.3 35 40 – – 285 – 264.3
8 741 26.4 29.2 31 79 18 1.00 850 9.5 5.94 5.94 1.00 95 1554 261.5 35 40 – – 285 – 261.5
9 741 26.4 30.4 32 72 18 1.00 850 9.5 5.94 5.94 1.00 96 1554 261.5 36 41 – – 285 – 261.5
10 741 26.6 31.4 33 67 18 1.00 850 9.5 5.94 5.94 1.00 96 1538 259.0 36 41 – – 285 – 259.0
11 741 26.6 33.0 35 59 12 1.00 870 4.75 3.04 3.04 1.00 171 863 283.8 35 38 – – 150 – 283.8
12 740 26.1 33.2 35 58 12 1.00 870 4.75 3.04 3.04 1.00 171 863 283.8 35 38 – – 150 – 283.8
13 740 26.8 31.3 33 70 12 1.00 870 4.75 3.04 3.04 1.00 170 868 285.5 35 38 – – 150 – 285.5
14 739 27.0 32.4 34 64 12 1.00 870 4.75 3.04 3.04 1.00 168 879 288.8 35 38 – – 150 – 288.8
15 739 26.6 31.4 32 67 25 1.00 840 10.4 6.42 6.42 1.00 83 1778 276.9 39 43 – – 320 – 276.9
16 739 26.8 32.4 34 63 18 1.00 850 9.5 5.94 5.94 1.00 95 1554 261.5 39 42 – – 285 – 261.5
17 738 26.4 32.4 34 61 18 1.00 850 9.5 5.94 5.94 1.00 95 1554 261.5 39 42 – – 285 – 261.5
18 738 26.0 32.0 34 66 18 1.00 850 9.5 5.94 5.94 1.00 95 1554 261.5 40 44 – – 285 – 261.5
18-30 738 26.0 32.0 34 60 18 1.00 850 9.5 5.94 5.94 1.00 94 1570 264.3 40 44 – – 285 – 264.3
19 738 26.0 31.6 33 62 12 1.00 870 4.75 3.04 3.04 1.00 170 868 285.5 40 43 – – 160 – 285.5
20 739 26.0 30.8 32 67 12 1.00 870 4.75 3.04 3.04 1.00 170 868 285.5 41 45 – – 160 – 285.5
21 739 26.0 30.0 31 71 12 1.00 870 4.75 3.04 3.04 1.00 171 863 283.8 42 42 – – 160 – 283.8
22 740 26.0 29.8 30 73 12 1.00 870 4.75 3.04 3.04 1.00 171 863 283.8 42 47 – – 160 – 283.8
Endurance Run : 24/32 Cycle : 384 Hrs.
Test Report No. : T-T-33 ISI-24     Date of Test: 3-7-79
Engine Manufacturer : M/s Power Engineering Corp. Rajkot
Type : Vertical “POWERIN”
Rated BHP : 8BHP/5.88 KW RPM : 850 RPM
Engine No. :  479525

Initial Lub. Oil Temp. : 29ºC.

Final Lub. Oil Temp. : 53ºC.

Engine started & loaded @ 6-00 Hrs.

Engine stopped @ 22-00 Hrs.

TIME BARO
METER
mm of
Hg		 AIR TEMP º c RELA-
TIVE
HUMI-
DITY
%		 EXHA-
UST
PRES-
SURE
mm of
H2º		 CORRE-
CTION
FACTOR
for
power		 OBSE-
RVED
R.P.M.		 BRAKE
LOAD
IN
KG.		 CALCU-
LATED
KW.		 CORR-
ECTED
KW.		 corre-
ction on factor for FUEL		 FUEL CONSUMPTION COOLING WATER TEMP. º c EXHA-
UST
GAS
TEMP
º c		 EXHA-
UST
GAS
TEMP
º c
WET
BULB		 DRY
BULB		 ENGINE
IN TAKE		 F. C. TIME for 41 gms. F. C. RATE Gms/Hr. S.F.C. G/Kw Hr. IN LET OUT LET
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
7 740 25.4 28.0 29 80 18 1.00 850 9.5 5.94 5.94 1.00 97 1522 256.2 34 39 – – 265 – 256.2
8 740 26.0 28.4 30 82 18 1.00 850 9.5 5.94 5.94 1.00 97 1522 256.2 34 38 – – 265 – 256.2
9 740 26.2 29.8 31 74 18 1.00 850 9.5 5.94 5.94 1.00 97 1522 256.2 34 38 – – 265 – 256.2
10 740 26.4 31.2 32 67 18 1.00 850 9.5 5.94 5.94 1.00 97 1522 256.2 34 38 – – 265 – 256.2
11 740 26.4 32.0 33 63 12 1.00 870 4.75 3.04 3.04 1.00 170 868 285.5 34 37 – – 150 – 285.5
12 740 26.8 33.0 34 60 12 1.00 870 4.75 3.04 3.04 1.00 170 868 285.5 34 37 – – 150 – 285.5
13 739 26.8 34.2 35 54 12 1.00 870 4.75 3.04 3.04 1.00 172 858 282.2 35 38 – – 150 – 282.2
14 739 26.8 34.8 36 52 12 1.002 870 4.75 3.04 3.05 0.999 171 863 283.8 40 46 – – 150 – 283.5
15 739 26.8 35.8 37 48 25 1.005 840 10.4 6.42 6.45 0.998 87 1697 264.3 40 46 – – 300 – 263.7
16 738 26.6 35.4 37 48 18 1.005 850 9.5 5.94 5.97 0.998 99 1491 251.0 42 47 – – 265 – 250.5
17 738 26.2 35.2 37 47 18 1.005 850 9.5 5.94 5.94 0.998 99 1491 251.0 42 47 – – 265 – 250.5
18 738 26.0 34.0 36 51 18 1.002 850 9.5 5.94 5.95 0.999 98 1506 253.5 42 47 – – 265 – 253.2
18-30 738 26.0 33.4 35 53 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 50 45 – – 265 – 253.5
19 739 25.4 32.4 33 60 12 1.00 870 4.75 4.75 3.04 1.00 176 839 275.0 45 48 – – 145 – 275.0
20 739 25.4 32.4 33 60 12 1.00 870 4.75 3.04 3.04 1.00 177 834 274.3 45 48 – – 145 – 274.3
21 740 25.4 30.0 32 68 12 1.00 870 4.75 3.04 3.04 1.00 177 834 274.3 45 48 – – 145 – 274.3
22 740 25.4 29.6 31 70 12 1.00 870 4.75 3.04 3.04 1.00 177 834 274.3 45 48 – – 145 – 274.3
Endurance Run : 32/32 Cycle : 512 Hrs.
Test Report No. : T-T-33 ISI-24     Date of Test: 12-7-79
Engine Manufacturer : M/s Power Engineering Corp. Rajkot
Type : Vertical “POWERIN”
Rated BHP : 8BHP/5.88 KW RPM : 850 RPM
Engine No. :  479525

Initial Lub. Oil Temp. : 30ºC.

Final Lub. Oil Temp. : 53ºC.

Engine started & loaded @ 6-00 Hrs.

Engine stopped @ 22-00 Hrs.

TIME BARO
METER
mm of
Hg		 AIR TEMP º c RELA-
TIVE
HUMI-
DITY
%		 EXHA-
UST
PRES-
SURE
mm of
H2º		 CORRE-
CTION
FACTOR
for
power		 OBSE-
RVED
R.P.M.		 BRAKE
LOAD
IN
KG.		 CALCU-
LATED
KW.		 CORR-
ECTED
KW.		 corre-
ction on factor for FUEL		 FUEL CONSUMPTION COOLING WATER TEMP. º c EXHA-
UST
GAS
TEMP
º c		 EXHA-
UST
GAS
TEMP
º c
WET
BULB		 DRY
BULB		 ENGINE
IN TAKE		 F. C. TIME for 41 gms. F. C. RATE Gms/Hr. S.F.C. G/Kw Hr. IN LET OUT LET
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
7 741 25.6 27.8 29 83 18 1.00 850 9.5 5.94 5.94 1.00 98 1506 253.5 36 41 – – 240 – 253.5
8 741 25.8 28.4 29 80 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 38 43 – – 270 – 251.0
9 742 26.0 29.2 30 76 18 1.00 850 9.5 5.94 5.94 1.00 100 1476 248.5 39 44 – – 260 – 248.5
10 742 26.0 29.8 31 73 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 39 44 – – 260 – 251.0
11 741 26.2 31.0 32 67 12 1.00 870 4.75 3.04 3.04 1.00 177 834 274.3 38 41 – – 160 – 274.3
12 740 26.2 31.2 32 66 12 1.00 870 4.75 3.04 3.04 1.00 178 829 272.7 38 41 – – 160 – 272.7
13 740 25.8 31.4 32 62 12 1.00 870 4.75 3.04 3.04 1.00 178 829 272.7 36 39 – – 160 – 272.7
14 739 26.0 32.0 33 60 12 1.00 870 4.75 3.04 3.04 1.00 177 834 274.3 40 37 – – 160 – 274.3
15 739 25.8 32.6 34 56 25 1.00 840 10.4 6.42 6.42 1.00 89 1658 258.3 45 39 – – 305 – 258.3
16 739 25.8 32.6 34 56 18 1.00 850 9.5 5.94 5.97 0.998 98 1506 253.5 39 44 – – 270 – 253.5
17 739 25.8 31.8 34 58 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 39 44 – – 270 – 251.0
18 739 25.6 31.2 33 62 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 40 45 – – 270 – 251.0
18-30 739 25.8 31.2 33 63 18 1.00 850 9.5 5.94 5.94 1.00 99 1491 251.0 40 45 – – 270 – 251.0
19 739 25.8 30.4 32 68 12 1.00 870 4.75 4.75 3.04 1.00 172 858 282.2 41 44 – – 160 – 282.2
20 740 25.6 29.8 31 70 12 1.00 870 4.75 3.04 3.04 1.00 174 848 280.0 42 45 – – 150 – 280.0
21 741 25.4 29.2 30 72 12 1.00 870 4.75 3.04 3.04 1.00 174 848 280.0 42 45 – – 150 – 280.0
22 741 25.4 28.6 29 76 12 1.00 870 4.75 3.04 3.04 1.00 174 848 280.0 42 45 – – 150 – 280.0

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