Nagka-oil leak na ko sa 1996 Corolla ko. Pinalitan ko ang ff :
1. PCV valve
2. Valve seals
3. Valve cover gasket
Tapos ... nakalimutan ko na yung iba. :hysterical: Wala na ata. Yan na yun. Ewan. Sinabay ko na rin pala tune-up ko nung pinagawa ko yan. To make sure.
Kung tumatagas sa makina, the seals that you need to replace are the ones on the outside.
Possible leaks may come from the following:
1. Valve Cover Gasket.
2. Oil Sump (Oil Pan)
3. Crankshaft, camshaft, and auxilliary/balance shaft seal (kung meron).
Since you said that the oil leaks when you use the car and stops after 15 minutes, I'm guessing malinis yung makina mo kaya tulo kaagan yung oil. Also, when the engine is running, oil is pumped up to the camshafts and valves and flows back down to the sump. Kapag pinatay mo makina mo, meron pang natitirang oil sa itaas. It might take it another 15 minutes hanggang bumaba ulit sa oil sump. Habang bumababa ito, dadaanan niya yung edge ng valve cover at yung edge ng oil sump kung saan meron gasket na maaring natuyo na at marupok na rin. Silipin mo makina mo kung dito sila nanggagaling.