High oil pressure reading??
Thread Starter
Pro
Joined: Feb 2007
Posts: 740
Likes: 2
From: San Antonio TX
High oil pressure reading??
What would cause my oil pressure guage to read High , it flutters high to were I have'nt used it in over 10 years .I've changed motor and guages so we can rule that out.. Any help well be appreciated..
Last edited by twin540; Feb 9, 2009 at 11:22 AM.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Have you changed the sender out yet? All the analog gages use the same ground on your year application so your issue might be with the sending unit.
What is the actual pressure reading that you see/feel is too high....is it consistantly too high?
What is the actual pressure reading that you see/feel is too high....is it consistantly too high?
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
It's been my experience that the sender and the gauge are a matched set. So changing one and not the other could cause what you're seeing.
Where is your sender mounted?
Are you running a high pressure oil pump? When I ran a HP pump, it ended up killing the gear that meshes with the camshaft. I went through three gears before I zeroed in on the cause.
You could verify the accuracy of your gauge reading by temporarily installing a mechanical gauge.
You could try going with 0-40 full synthetic to see what effect it has on the pressure.
Jake
Where is your sender mounted?
Are you running a high pressure oil pump? When I ran a HP pump, it ended up killing the gear that meshes with the camshaft. I went through three gears before I zeroed in on the cause.
You could verify the accuracy of your gauge reading by temporarily installing a mechanical gauge.
You could try going with 0-40 full synthetic to see what effect it has on the pressure.
Jake
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Burning Brakes
Joined: Feb 2008
Posts: 988
Likes: 7
From: Sarasota Fl
On the rear china wall. You'll need a special GM oil pressure sender socket available at AutoZone. I had to use a dremel and widen it out a little to fit the new Delco sender. I think I have a picture of it around here somewhere...It is definitely shown in the engine blow-up figure in the FSM though.
Race Director
Joined: Apr 2003
Posts: 17,700
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From: moraga ca
Back of the motor behind the intake manifold on the driver's side. There is a black bell shaped thing that is the pressure sending unit. It's to the driver's side of where the distributor comes out of the block.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
I didn't use any special wrench though. Don't remember if being that big a deal. You might have to pull the distributor to gain access to it. Mine was already pulled when I did the swap.
