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4. Lubrication System
Service Information
Troubleshooting
Lubrication System Diagram
Service Information
4-1
4-1
4-2
Oil PurnpRernoval/lnstallation
Oil Pump Disassembly/
Assernblv
4-3
4-4
•
If the engine must be running to do sorne work, make surethe area is well-ventilated. Never run the engine in an en-
closed
area. The
exhaustcontain~
polsonous carbonrnonoxlde
gas
that
can cause loss of consciousness and may lead
to death. Run the engine in an openarea or with an exhaust evacuation system in an enclosed a r e a . .
Usedengineoil may cause skin cancerif repeatedly
left incontactwith
the skin for prolonged periods.Although this is
unlikely unless you handle uséd oil on a daily basis, it is still advisable to thoroughly wash your hands with soap and
water as soon as possible
afterh~lIidlingpsed
'oil.
The oil pump can be serviced
with
the engine in the frame.
The service procedures in
thís section rriust
be performed after
the
engine oil is drained.
•
When removing and installing the oi! purnp use care not to allow dust or dirt to enter the engine.
If any portian of the
oil purnp
is wornbeycind the specified service
lirnits.
replace the oil pump as an assembly.
•
After the oil pump has been installed, check that thereare no oil leaks and that oil pressure is correcto
Troubleshooting
Oil Level Low
•
Oil consumption
External oil leak
Worn piston ring orincorrect piston ringinstallation
Worn valve guide orsea--r---
_
Low Or Na Di! Pressure
Clogged oil filter screen
Oil orifice collar damaged
lncorrect oil being used
No Di! Pressure
Oil leveltoo low
Oil pump drive gear broken
Oil pump damaged (pump shaft)
Internal oil leaks
LowOil Pressure
Clogged oil filter screen
•
Oil pumpworn or damaged
Internal oil lea k
Di! orifice collardamaged
Incorrect oil being used
•
Low oil level
HighlJif Pres-suré
• Pressure relief valve stuck2rosed
•
Incorrect oi! being used
4-1
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