Quote:
Originally Posted by jveik
my oil pressure will run between about 40 and 45 when not idling and anywhere from 20 to 40 idling. i think that might be because i am only running 5W-30 in it. i might dump out the oil and throw some 10-40 to see what it does. i was talking to an old timer at a local shop yesterday and took him for a spin in it and he seems to think the bearings are fine and most likely i spun the outer ring of the harmonic balancer and threw the motor out of balance, since it is an externally balanced engine. i hope "old-timer" is right. im taking it to the local dyno shop to have the guy there take it on the road for a test drive and if its the balancer ill throw another one on there. thats all i know for now...
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Let us know how it turns out.
I wonder if you floated the valves and, as mentioned above, smacked a floating valve with a pistons and/or broke one or more valve springs ...... which might mean that the valve is now floating at 3500 rpm.
FWIW, this had happened to a '77 Trans Am I bought a few years ago....