I went out this morning and started the car cold. It was in the high 40's last night and expected to be much warmer this weekend, so this seemed like the best time to try this. I figured I'd run it cold a few times before I start pulling things apart in hopes of getting lucky and dislodging whatever is in stuck in the ball valve.
So, cold I got the following good oil pressure (click to watch vid):
Here's a still of the highest pressure as I gently revved the engine to about 3,500 RPM after it was running for a little bit. That's nearly 75 PSI. Wouldn't this cause the ball valve to open?:
And here is the video of the car running at highway speed at nearly 3,000 RPM showing about 40 PSI. Note that the temp never got over 175, so this temp is not where I start to really see a problem, it's when the engine temps are around 200:
HWYSTR455, I'll reach out to Butler. Good idea. They supplied the rotating balanced assembly but didn't put the engine together. I bought the car last winter and have driven it 1,600 miles of fun and games. The oil was changed just before I got it so November was my first oil change. It's a stock pan. The pressure used to be closer to 50 on the highway.
Also note that the damage shown above was from another car all together where I had the same thing happen. Just bad luck.
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Adam
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1964 LeGTO
469, M21, 3.42
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1968 Pontiac LeMans Convertible
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