1991 Toyota Camry Q&A
1991 Toyota Camry Question: Oil leak.
Its hard to tell where an oil leak is coming from with out starting off with a clean engine. Oil will leak downward (gravity) and rearward (turbulence and airflow in the engine compartment when driving) Ensure the valve cover gasket and distributor O-ring are not leaking, if so the top of the engine would be wet. Ensure the PCV valve is operating correctly a clogged PCV valve will cause crank case pressure in the engine to force oil out through seals and gaskets. With a clean engine a florescent dye can be added to the engine oil, the car is driven a short distance, put up on a rack so the underside of the car can be examined, the dye in the oil will turn a florescent green or bright yellow when view with a black light pin pointing the exact source of the leak. A rear crankshaft main seal will show oil leaking at the lower joint between the bell housing and the engine block and will flow rearward gathering on the oil pan gasket. - patrick mannion
wash your motor and then check carfully and you will see where it come from - Visitor
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