TROUBLESHOOTING
ENGINE
PRIMARY
SYSTEMS
Many troubleshooting procedures present hazards which can result in severe personal injury or
death. Only qualified service personnel with knowledge of fuels, electricity, and machinery hazards
should perform service procedures. Review safety precautions on inside cover page.
TROUBLE
High Oil
Consumption
[Note: New
engines sometimes
have high oil
consumption during
break4 n)
Engine Shuts
Down and Will
Not
Restart
~ ~ ~ ~~
POSSIBLE CAUSE
1.
Oil viscosity is too light
2.
Crankcase breather valve is
or oil is diluted
dirty or defective
3.
Oil leaks
4.
Excessive engine wear
5.
Intake valve seal worn or defective.
6.
Light loading
~
~~
1.
Low oil level
2.
Low oil level switch defective
3.
Worn spark plug
4.
Faulty fuel system
CORRECTIVE ACTION
1.
Drain oil and refill with correct
viscosity oil
if
defective
2.
Clean crankcase breather and replace
3.
Locate source
of
leak and repair as
4.
See Engine Block Assembly section
required
5.
See Engine Block Assembly section
6.
Do not run set at no load for long
periods
of
time
1.
Add oil as required
2.
Replace oil level switch (see
3.
Clean or replace spark plug
4.
Refer to Fuel System section for
test and service procedures
Engine Block Assembly section)
.
6- 4
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