Oil Pressure Issues Again

[Flyinglizard]

Drop the pan, add 1/4 in shim between the pick up and pan bottom. Push the pan back up and see if it hits at 1/4 in. Under 1/4in, you may get some airation of the oil.
1/4 in should be the minimum from the pan to pickup. While you are there, verify the dipstick mark is under the windage tray or crank swing level.
That seems like too much oil prressure. Maybe try the Rotella 5/40 synthetic.
There is a chance of baffles creating some air bubbles near the pickup.IMHO/ MM
It may also have a cracked pickup tube that is vibrations sensitive

[Sandro]

you try a different pressure sender and gauge?

make sure they are mated correctly?

[joeg]

+1 on the gauge.

Is it mechanical or electrical?

[23racer]

I was wondering about the sender as well. It is an Autometer Comp gauge set. The sender is situated under the front header and it looks a bit tired. Anyway to test the functionality of the sender? I guess I can send it back to Autometer, but it is a case of diminishing returns as the mail costs and duties are about the same as the sender cost.

Interesting and something to try first. I could just buy a cheap gauge and try that to see if I see the same things.

Great ideas.

Eric

[rsportvolvo]

Check with Leo Capaldi. He ran the Cougars in WC.

http://www.capaldiracing.com/index.html

[chuck baader]

Try changing oil to Valvoline Racing Synthetic 20W50. It is rated one of the best at maintaining pressure at higher temps. Mobil 1, although a great oil, is not rated very high in maintaining pressure at temp. Chuck

[DavidM]

The pressure senders seem to die eventually. Depending on the sender it may also be grounded through the threads and a bad ground could give you weird readings. I would try checking with a mechanical gauge to verify the readings you are seeing.

On my latest install I'm not installing the sender directly in the pressure port, but instead running a piece of hose between the port and sender. Hopefully that'll isolate the sender from the engine vibrations some and lead to a longer life. This sender has a ground wire so it doesn't need to be grounded through the threads.

David