4-12 FUEL AND LUBRICATION SYSTEM
Oil seal
Oil pump cam
Oil pump driven gear
Oil pump valve
Plunger
Check valve
Sopper screw
Washer
Union bolt
Gasket
• Remove the oil pump cam.
NOTE:
When removing the oil pump cam, the plunger and its spring will
pop out. Do not miss there two parts.
Inspect the oil pump valve wall and clutch cover bore wall for
nick, scratches or other damage.
• Inspect plunger 1 and spring 2 for proper operation.
• Inspect the oil pump valve 3. Oil pump driven gear 4 for any
damage. If there are any damages are found, replace the part
with new one.
NOTE:
If the oil pump valve or clutch cover bore wall has any defect,
replace the clutch cover assembly. Inspect the oil passege and
check valve 5 for clogging.
REASSEMBLY
• Wash the oil pump components with feash engine oil before
reassembly.
• Install the oil as shown in the illustration.
• After reassembly, check the oil pump driven gear for smooth
turning.
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