Technical data

CAUTION: The use of different brands of lubricating oils during oil changes has been known to
cause extensive oil sludging and may in many instances cause complete oil starvation.
6. Start engine and run for 3 or 4 minutes. Stop engine and check ,.oil filter gasket for leaks. Check
oil sump level. This is important as it may be necessary to add oil to compensate for the oil that
is required to fill the engine's internal oil passages and oil filter. Add oil as necessary. See Note.
IMPORTANT NOTE
IT IS MANDATORY THAT THE CHECKS 3, 4, 5 AND 6 BE ATTENDED TO WHEN
TOTAL OPERATING TIME REACHES 150 HOURS. IN SOME INSTANCES, THIS TOTAL
IS REACHED BEFORE END OF SEASON.
7. lean Air Filter if supplied. (Most models have an air silencer that does not require cleaning.) The
time period for replacing the air filter depends on operating conditions. therefore, under
extremely dirty conditions, the seasonal frequency should be increased. The correct time periods
for replacing the filter will greatly assist in reducing bore wear, thereby extending the life of the
engine.
8. Check engine for loose bolts, nuts, etc.
9. Check sea water pump for leaks.
10. Wash primary filter bowl and screen. If filter bowl contains water or sediment, filter bowl and
secondary oil fuel filter need be cleaned more frequently.
11. Replace secondary fuel filter element.
12 Replace air filter.
13. Change the fluid in the transmission. Refer to the Transmission Section of this manual for
details.
END OF SEASON SERVICE
1. Drain fresh water cooling system by removing the surge tank pressure cap and opening all water
system petcocks.
2. Remove zinc rod (usually located in heat exchanger) and see if it needs replacing. The zinc rod
will take care of any electrolysis that may occur between dissimilar metals. Insert new zinc if
necessary.
3. Fill fresh water cooling system with antifreeze of a reputable make. (Refer to Cold Weather
Precautions.)
4. Start engine. When temperature gauge indicates 175'F, shut engine down and drain lubricating
oil. Remove and replace filter. Fill sump with High Detergent Lubricating Oil.
5. Carefully seal air intake opening with waterproofed adhesive tape or some other suitable
medium.
6. Seal the exhaust outlet at the most accessible location as close to the engine as possible.
7. Remove injectors and spray oil into cylinders.
8. Replace injectors with new sealing washer under each injector. Turn engine slowly over
compression.
9. Top off fuel tank completely so that no air space remains, thereby preventing water formation by
condensation.
10. Leave fuel system full of fuel.
11. Change fuel filters before putting the engine back in service.
12. Wipe engine with a coat of oil or grease.
13. Change fluid in transmission. Refer to the Transmission Section of this manual for details.