High Oil Pressure...Help!
Race Director
Joined: Sep 1999
Posts: 12,435
Likes: 918
From: CONCORD NC
Re: High Oil Pressure...Help! (Tennis Bum)
It was probably a sensor gone awry, but I guess anythings possible. The oil pump has a spring bypass that regulates pressure, usually around 40-60psi. We "shim" ours to boost cold pressure to around 80psi, which then drops to around 40-50psi at hot temps (250-270 degrees oil).
I don't think the stock pump could generate 129psi even with the spring completely jammed, but I don't know for sure. A piece of trash could have gone through and jamed the bypass, but I have never had it happen.
you can see the spring and cap on the lower right side of this pic.
I don't think the stock pump could generate 129psi even with the spring completely jammed, but I don't know for sure. A piece of trash could have gone through and jamed the bypass, but I have never had it happen.
you can see the spring and cap on the lower right side of this pic.
Le Mans Master
Joined: Sep 1999
Posts: 7,810
Likes: 416
From: FL
Re: High Oil Pressure...Help! (davidfarmer)
It was probably a sensor gone awry, but I guess anythings possible. The oil pump has a spring bypass that regulates pressure, usually around 40-60psi. We "shim" ours to boost cold pressure to around 80psi, which then drops to around 40-50psi at hot temps (250-270 degrees oil).
I don't think the stock pump could generate 129psi even with the spring completely jammed, but I don't know for sure. A piece of trash could have gone through and jamed the bypass, but I have never had it happen.
you can see the spring and cap on the lower right side of this pic.
I don't think the stock pump could generate 129psi even with the spring completely jammed, but I don't know for sure. A piece of trash could have gone through and jamed the bypass, but I have never had it happen.
you can see the spring and cap on the lower right side of this pic.
Melting Slicks
Joined: Jan 2002
Posts: 3,419
Likes: 0
From: Arlington TX
Re: High Oil Pressure...Help! (VNAMVET)
Probably your oil pressure sending unit...mine went out about 4 months ago...DIC showed 130 psi and analog gauge showed 80 psi...it's no big deal...just annoying. I believe the sending unit is under the intake mainfold. I drove it like that for about 3 months before I got it fixed...I've heard about other guys driving it like that for 1+ years with no issues....I'd get it fixed though, but your engine isn't going to blow up if it's the sending unit....good luck. :cheers:
Drifting
Joined: Jul 2002
Posts: 1,396
Likes: 0
From: new york
Re: High Oil Pressure...Help! (Tennis Bum)
Been there done that its the oil sending unit for sure these cars have a bad habbit of oil sending units going bad. As long as the car is running at the same temp she normally runs at you should be fine. If you want this is what I did take a magna flashlight take the oil fill cap off and have someone in the car bring up the RPM'S in the car then take your flashlight and check down the spout for the oil fill you should see oil flowing over the lifters and the valve springs. As you increase and decrease the RPM'S the flow of oil will do the same.
QUIMBO :seeya :seeya SEEYAAAH :thumbs:
QUIMBO :seeya :seeya SEEYAAAH :thumbs:
Thread Starter
Instructor
Joined: Feb 2001
Posts: 161
Likes: 0
From: Orlando FL
Re: High Oil Pressure...Help! (Tennis Bum)
Thanks for the responses, guys. My guess was the pressure sensor (but, I know just enough to be dangerous). I'll sleep better, tonight...then, off to the dealer (who does good work).
bum :flag :cheers:
bum :flag :cheers:
