DETROIT DIESEL
Storage
have a temperature gage, do not stall the
4089) Mobil 4Y17, or equivalent, to enable the engine
to operate 10 minutes.
converter for more than thirty seconds.
h. Stop the engine and permit the converter to cool
12. Drain the fuel filter and strainer. Remove the
to a temperature suitable to touch.
retaining bolts, shells and elements. Discard the used
elements and gaskets. Wash the shells in clean fuel oil
i. Seal all of the exposed openings and the breather
and insert new elements. Fill the cavity between the
with moisture proof tape.
element and shell about two-thirds full of the same
rust preventive compound as used in the fuel tank and
j. Coat all exposed, unpainted surfaces with preserva-
reinstall the shell.
tive grease. Position all of the controls for
minimum exposure and coat them with grease.
13. Operate the engine for 10 minutes to circulate the
The external shafts, flanges and seals should also
rust preventive throughout the engine.
be coated with grease.
14. Refer to Air System and service the air cleaner.
17. POWER TARE-OFF
15. MARINE GEAR
a. With an all purpose grease such as Shell Alvania
No. 2, or equivalent, lubricate the clutch throwout
a. Drain the oil completely and refill with clean oil of
bearing, clutch pilot bearing, drive shaft main
the proper viscosity and grade as is recommen-
bearing, clutch release shaft, and the outboard
ded. Remove, clean or replace the strainer and
bearings (if so equipped).
replace the filter element.
b. Remove the inspection hole cover on the clutch
b. Start and run the engine at 600 rpm for 5 minutes
housing and lubricate the clutch release lever and
so that clean oil can coat all of the internal parts
link pins with a hand oiler. Avoid getting oil on
o f the marine gear. Engage the clutches
the clutch facing.
alternately to circulate clean oil through all of the
moving parts.
C. If the unit is equipped with a reduction gear, drain
and flush the gear box with light engine oil. If the
16. TORQMATIC CONVERTER
unit is equipped with a filter, clean the shell and
replace the filter element. Refill the gear box to
a . Start the engine and operate it until the
the proper level with the oil grade indicated on
temperature of the converter oil reaches 150 F
the name plate.
(66C).
18. TURBOCHARGER
b. Remove the drain plug and drain the converter.
The turbocharger bearings are lubricated by pressure
c. Remove the filter element.
through the external oil line leading from the engine
cylinder block while performing the previous opera-
d. Start the engine and stall the converter for twenty
tions above and no further attention is required.
seconds at 1000 rpm to scavenge the oil from the
However, the turbocharger air inlet and turbine outlet
converter. Due to lack of lubrication, do not exceed
connections should be sealed off with moisture-
the 20 second limit.
resistant tape.
e. Install the drain plug and a new filter element.
19. HYDROSTARTER SYSTEM
f. Fill the converter to the proper operating level
Refer to Hydraulic Starting System in the section on
with a commercial preservative oil which meets
Engine Equipment for the lubrication and preventive
Government
specifications
MIL-L-21260,
maintenance procedure.
Grade 1. Oil of this type is available from the
major oil companies.
20. Apply a non-friction rust preventive compound, to
all exposed parts. If it is convenient, apply the rust
g. Start the engine and operate the converter for at
preventive compound to the engine flywheel. If not,
least 10 minutes at a minimum of 1000 rpm,
disengage the clutch mechanism to prevent the clutch
Engage the clutch; then stall the converter to raise
disc from sticking to the flywheel.
the oil temperature to 225F (107C).
CAUTION: Do not apply oil, grease or any wax
base compound to the flywheel. The cast iron
CAUTION: Do not allow the oil temperature to
will absorb these substances which can "sweat"
exceed 225F (107C). If the unit does not
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