Oil pressure low?
Thread Starter
Burning Brakes
Joined: Aug 2005
Posts: 1,164
Likes: 1
From: Europe, France
Oil pressure low?
Just a little question about engine oil pressure with a stock oil pump
on a 350CI L82 1973 engine :
The stock manometer reads from 20-25 at idle to 35-40 at 2500 RPM+, but it doesn't go any higher even at high RPM.
I first checked the oil pressure with an external manometer and I'm now sure that the dash unit works correctly.
I remember there is a little spring built inside the oil pump, which limits the max oil pressure. Could this spring be a little weak ?
Shouldn't I get a little more, at least 50+ PSI ? ( I use 5W50 Mobil Oil )
Is there something that I can or must do to fix it ?
on a 350CI L82 1973 engine :
The stock manometer reads from 20-25 at idle to 35-40 at 2500 RPM+, but it doesn't go any higher even at high RPM.
I first checked the oil pressure with an external manometer and I'm now sure that the dash unit works correctly.
I remember there is a little spring built inside the oil pump, which limits the max oil pressure. Could this spring be a little weak ?
Shouldn't I get a little more, at least 50+ PSI ? ( I use 5W50 Mobil Oil )
Is there something that I can or must do to fix it ?
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Originally Posted by 73StreetRace
Just a little question about engine oil pressure with a stock oil pump
on a 350CI L82 1973 engine :
The stock manometer reads from 20-25 at idle to 35-40 at 2500 RPM+, but it doesn't go any higher even at high RPM.
I first checked the oil pressure with an external manometer and I'm now sure that the dash unit works correctly.
I remember there is a little spring built inside the oil pump, which limits the max oil pressure. Could this spring be a little weak ?
Shouldn't I get a little more, at least 50+ PSI ? ( I use 5W50 Mobil Oil )
Is there something that I can or must do to fix it ?
on a 350CI L82 1973 engine :
The stock manometer reads from 20-25 at idle to 35-40 at 2500 RPM+, but it doesn't go any higher even at high RPM.
I first checked the oil pressure with an external manometer and I'm now sure that the dash unit works correctly.
I remember there is a little spring built inside the oil pump, which limits the max oil pressure. Could this spring be a little weak ?
Shouldn't I get a little more, at least 50+ PSI ? ( I use 5W50 Mobil Oil )
Is there something that I can or must do to fix it ?
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Originally Posted by 73StreetRace
I remember there is a little spring built inside the oil pump, which limits the max oil pressure. Could this spring be a little weak ?
Shouldn't I get a little more, at least 50+ PSI ? ( I use 5W50 Mobil Oil )
Is there something that I can or must do to fix it ?
Shouldn't I get a little more, at least 50+ PSI ? ( I use 5W50 Mobil Oil )
Is there something that I can or must do to fix it ?
