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 TM 55-1905-219-14-10
5-4. MAIN PROPULSION ENGINE/MARINE GEAR - REMOVAL AND RUN-IN
MAINTENANCE INSTRUCTIONS. (Continued).
LOCATION
ITEM
ACTION
REMARKS
RUN IN (Cont)
g. Dynamometer test and run-in procedures.
(1) The Basic Engine
(a) A basic engine includes only those items actually required to run the engine. The addition of any
engine driven accessories will result in a brake horsepower figure less than the values shown in the Basic
Engine Run-In Horsepower Schedule. The following items are included on the basic engine: blower, fuel pump,
fresh water pump and governor.
(b) In situations where other than basic engine equipment is used during this test, proper record of this
fact should be made on the Engine Test Report. The effects of this additional equipment on engine
performance should then be considered when evaluating test results.
RUN-IN SCHEDULE
(Horsepower at SAE Conditions)
(Air Temperature 85Elevation 500 ft.)
(Dry Air Density .0705 lb./cu.ft.)
BASIC RUN-IN BRAKE HORSEPOWER SCHEDULE
Time
Speed
12V-71
Minutes
rpm
Injectors
4-Valve
10
1200
A11
84
30
1800
A11
340
2300
N-70
428
FINAL FULL POWER RUN-IN
1800
N-70
429
2000
N-70
466
2100
N-70
480
2300
N-70
500
5-24
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