OIL PUMP ON 95 3800

2012 Buick



June, 26, 2006 AT 10:54 AM

I had a leaking timing cover and I started to change the gasket. Don't ask me how but it got cracked and it is junk!I got another out of the bone yard it was really dirty cleaned it up and I put my oil pump gears in it I used my relief spring and plunger too. I put it back together and I do not have oil pressure. I changed the sending unit cause I had one. I saw the other day when I was looking at the teeth on the pump it has a dot and there is a dot on the crank. I know the dot on the crank is for the timing but does it have something to do with the oil pump. What am I missing or not doing because everything was fine before without any problems. I would appreciate any help someone could give me Thanks Tager.


3 Answers



July, 13, 2006 AT 10:36 PM

Hi Tager,

first, I'd like to ask you a question. Is there actually no oil pressure, or is your light just on or your gage reading low?

If your oil pressure is actually zero, the most likely cause would be the oil pressure relief valve (or plunger) inside the oil filter adapter part of the timing cover. It should move freely, if you push it in with your finger it should come back out without binding and the bore should be nice and smooth. I've seen these cause zero oil pressure before many times.

And, your other question about the dot on the crank gear. That's just for valve timing. : Wink:



July, 15, 2006 AT 5:03 AM

Morning the date is july 15 06 and I wanted to take the time and reply to you because you took the time to reply to me. I have the problem fixed. I sure was at my wits end. I took it apart three different times doing what people told me to do and I think the whole problem was the idot light but I sure was not going to take the chance it might have been the relief spring too. I did take the cover off and used some emery cloth on it to make sure that it did run smooth. One time I left the sending unit out and ran the car and got no oil so that is what got me scared. I think that is when the relief spring was sticking. Well the final thing that I did was put a set of gauges in the car and as soon as it ran the oil pressure was 75# and stayed around 60#. So that car was fixed and she is driving it again. Now I'm on the next project and hope to finish it in the next 2 days putting a transmissioni in my 90 2500 Chevy pickup. Thanks again. I hope you get this message because I really don't know what I'm doing to new on this site. Have a great day. Tager.



July, 15, 2006 AT 1:47 PM

Glad to help!

If you need to ask me anything about the truck I'll be glad to help with that too. Sounds like you fixed your oil pressure without my help.

Great job! : )

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