<VV> Low oil pressure
BobHelt at aol.com
BobHelt at aol.com
Mon Aug 5 15:26:50 EDT 2013
You should know is that you likely have the WRONG sender switch installed.
GM had several types in use that all looked alike but activated at
different pressures. So the easiest and simplest thing to do first is get a switch
that is intended for Corvairs. The Corvair spec is....close when the
pressure drops below 4 to 6 psi. That should cure your light coming on. Next, 30
psi isn't THAT low for higher rpms. Just live with it and forget working
on the pressure relief spring. All of course in my humble opinion.
In a message dated 8/5/2013 8:33:06 A.M. US Mountain Standard Time,
bryan at skiblack.com writes:
I figure I'll give Matt something to think about :-)
I have a 110 of unknown history in the '66 that I switched from 15x-50 to
10w-30. When it's hot I now get an oil light at idle. I thought about
changing it back, but it seemed to make sense to actually check the pressure
and see what it is. So I made an adapter out of an old oil filter bolt and
put a small mechanical press gauge on it.
At start up I have 25 psi at idle, but it only gets to 30 even at 3500
rpm. When warm it's hovering around 8 - 10 at idle, but bringing the engine
up to 3500 I only get about 20 psi. I'm thinking the easy thing to try
first is just swap out the pressure relief spring. Any other quick fixes? I'd
prefer to run 10w-30, but if it comes to it I'll put the heavier oil in
it, I'm not going to go deep into this engine any time soon and it runs
really well otherwise.
Bryan Blackwell | Springfield, Va. | bryan at skiblack.com |
Corvairs: '62 700 Wagon, '64 Greenbrier, '65 Corsa, '66 Corsa
'69 Road Runner, '99 Neon R/T, '00 Miata SE, '09 Ford F-150
"Why do something if you're not going to obsess about it?"
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