Would you mind giving me your opinion on a problem I’m having with my 84’ Vette (87’ Engine).
About 4 months ago I went to start it up one Sunday morning and when it fired up about 2 quarts of oil shot out of the oil filter gasket. I let her sit filled up the oil and all was well..well after that ,I sometimes get lifter clatter when first started but it goes away after a few minutes even with 60 psi oil pressure at idle. (I put new lifters in right after this occurance) Well,yesterday I went for a ride approx 30 miles and when I returned home I noticed the oil pressure was 9-10 psi and the check engine light was on (because of the low pressure it cuts off the fuel pump)
I then stopped it and tried to re-start and it naturally it wouldn’t. I looked under the car and oil was seeping out around the Oil Filter gasket.I tried to tighten it but it only turned about a ¼” max.I let it sit a couple hours and I started it and it was OK with 50- 60 psi pressure. I drove it home after work and when I got in my drive way again was low oil pressure.I looked under the car and a little oil was leaking out from the filter again. I called my local mechanic and he suggested it could be the Oil filter By-Pass valve sticking.
I called my engine builder and he dis-agrees and said it sounds like the oil pump relief valve sticking partially open when it gets hot. I Remind you it , is fine when driven 15 -30 minutes. Now my lifters have been quite for over a week now but this morning they clattered for a few minutes.Grump,I’m really perplexed. Can you suggest what might be wrong.????
Thanx for your help.