Decrease in power / oil pressure
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1st Gear
Joined: Sep 2017
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Decrease in power / oil pressure
I purchased a 1966 327/350 convertible, automatic transmission Corvette about a year ago. The car had acceleration like a bat outta hell. Long story short, we had an unusually cool summer morning in the rural area (Celina, TX) in mid-July, so I did what most of us will do: I drove the back roads and had a lot of fun - aka went maximum speed. I returned home without a problem. I took my wife for a drive and the fan belt broke which led to an overheating issue. We successfully pampered the car back to the house. After fixing the fan belt and changing the oil, the car no longer has "bat outta hell" acceleration and the oil pressure when it starts goes to 60. The water temp is fine, but the oil pressure after the engine warms up returns to 30 (starts at 60), but with any acceleration the oil pressure goes off the gauge. I have two issues: one - the loss of power; two - oil pressure issues. Any help is appreciated - convertible weather. Thanks in advance,
Le Mans Master
Joined: Jan 2002
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Driving a car without the water pump turning is a no no. How hot did the engine get? How far was the car "limped" home.
I'm not sure what your asking about oil pressure. Normal cold oil pressure at idle will indicate maximum oil pressure 60 or 80. Hot oil pressure is usuall half that. Reving the engine, hot or cold will raise the oil pressure.
In my limited over heating experience, chevy small blacks are very tolerant, with the exceptions of valve guide seals, which get cooked.
Mark
I'm not sure what your asking about oil pressure. Normal cold oil pressure at idle will indicate maximum oil pressure 60 or 80. Hot oil pressure is usuall half that. Reving the engine, hot or cold will raise the oil pressure.
In my limited over heating experience, chevy small blacks are very tolerant, with the exceptions of valve guide seals, which get cooked.
Mark
Last edited by ghostrider20; Sep 7, 2017 at 11:38 AM.
