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what should the oil pressure be at idle on a 216 #699522 11/30/2010 5:18 AM
Joined: Oct 2010 Posts: 45 south burb of Chicago P plane_fixer 'Bolter
plane_fixer 'Bolter P Joined: Oct 2010 Posts: 45 south burb of Chicago	Well I drove my 1950 truck around the block and the oil pressure reads a little over 15psi @about 2000 (I'm guessing) at idle it's at about 3-5 psi is this normal? I'm running a straight 30 for oil. Should it flucuate that much? I tried to search the forum and couldn't find anything. Any help would be appreciated John

Re: what should the oil pressure be at idle on a 216 plane_fixer #699527 11/30/2010 5:26 AM
Joined: Sep 2003 Posts: 200 Emory, Texas 5 51bolt Shop Shark
51bolt Shop Shark 5 Joined: Sep 2003 Posts: 200 Emory, Texas	Plane, Yeah that sounds about right. When the oil is cold it will be higher than when it's hot and at idle. It looks a little scary when it's at temp and at idle. Mark 1951 Chevy 3100 Some days you get the bear. Some days the bear gets you.

Re: what should the oil pressure be at idle on a 216 51bolt #699569 11/30/2010 11:35 AM
Joined: Sep 2007 Posts: 154 Michigan W westratedel Wrench Fetcher
westratedel Wrench Fetcher W Joined: Sep 2007 Posts: 154 Michigan	I have a 1946 chev big bolt with a 216 in it. The oil pressure on mine is 15 pounds when warm.

Re: what should the oil pressure be at idle on a 216 westratedel #699579 11/30/2010 2:06 PM
Joined: Oct 2006 Posts: 9,671 Sandwich, IL D Denny Graham 'Bolter
Denny Graham 'Bolter D Joined: Oct 2006 Posts: 9,671 Sandwich, IL	14-15lbs at speed and 6-7lbs at idle when warm. #20 or #30 oil is fine for your engine or a 10w-30 multigrade mineral or synthetic. At 3-4lbs I would suspect worn main or cam bearings. You might get by for a while by adjusting the main bearings. DG Last edited by Denny Graham; 11/30/2010 2:12 PM. Denny G Sandwich, IL

Re: what should the oil pressure be at idle on a 216 Denny Graham #699590 11/30/2010 2:46 PM
Joined: Mar 2002 Posts: 9,112 Bracebridge Ontario Canada truckernix 'Bolter
truckernix 'Bolter Joined: Mar 2002 Posts: 9,112 Bracebridge Ontario Canada	In my Chevrolet literature, I have not been able to find a spec for oil pressure at idle. They do state however that the minimum at 2000 RPM would be 7 lbs. I believe that was for a passenger car. 1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it! 1951 1 Ton Completed My Chevy Master 4 Door is on the Road!

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