Quote:
Originally Posted by chuck stevens
Hey Ron, I have an 8BA that has over 50# when running down the road but drops down to 2-3lbs at an idle. It has about 5k on it after a total rebuild. I guess if it made it this far it'll be ok, but when I look at that gauge it makes me sick. I have a reground cam, and standard cam bearings, I never checked the clearance on them, could that be the problem? Thanks Chuck.
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I would find the problem and fix it. What weight oil, I don't like any that
say 5 20/40 is good. I have seen the pressure drop after warm up do
to the pressure relief valve in the oil pump relief valve or the valve up
in the front of the intake manifold leaking. The pressure starts to drop
ang goes way down. When the engine is restarted it usually comes back
up and drops off again. This is a week spring in either of the relief valves.
Don't stretch the spring make a spacer out of 1/4" pipe about 5/16" long.
Spin the engine, plugs out on 12 volts and the oil pressure you see is
what you will have at 35 MPH. Adjust the spacer length for max pressure.
These pumps will put out over 100 lbs. Look in old posts for a plastic tube
fixture for adjusting oil pumps. G.M.