4C20 Gasoline Engine Repair Manual
Examination
40
(a) Pry off the balance shaft oil seal with a screwdriver
8. Removing the system pump housing O-ring
ki.
10. Check the operation of the pump bearing by rotating the pulley.
If there are abnormal sounds, jamming, obvious lack of
lubrication, etc. the pump is subject to
cooling
11. Checking the impeller and pump housing. If corrosion and
severe deformation are detected, these parts must be replaced.
(b) Remove the oil seal.
replacement.
7. Removing the coolant pump assembly
6. Removing the balance shaft seal
9. Check if coolant is leaking from the coolant pump overflow hole.
It is normal for a small amount of fluid to leak out. If a significant
amount of fluid leaks out, the pump must be replaced. Check
for white grease on the lip of the bearing and inside the pump
housing. The presence of grease indicates leakage. In this case,
the pump must be replaced.
(a) Remove the 5 bolts and remove the coolant pump.
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