Topic: Oil pressure gage
in Forum: C3 Electrical
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I don't know if later C-3s had mechanical or electrical gauges, but I had a '69 oil pressure gauge that didn't work either. The problem ended up being sludge had actually built up in the gauge itself. I was actually succesful in cleaning it, but it took a very long time to "flush" the crap out of it. Obviously the gauge had to be removed to do this. Another gauge would have been a more prudent choice, but I can be a bit stubborn when parts don't work properly. One way to Isolate the gauge would be to buy a cheap gauge and just run your sender wire or tube to it. Those itty bitty tubes can stop up with sludge too. It's trial and error.

I've re-read some of these posts, if you guys are getting 40 lbs at lower rpm's or idle, you're in good shape. If I recall, the rule of thumb is 10 lbs for every 1000 revs. 50 lbs at 5000, etc.
The jumping can be explained by a pressure relief in the system. Some builders "beef up" the spring. It will make the gauge jump!
If your rockers aren't rattling, you probably don't have much of a problem!
The jumping can be explained by a pressure relief in the system. Some builders "beef up" the spring. It will make the gauge jump!
If your rockers aren't rattling, you probably don't have much of a problem!

Dave your on target, but the key word in your reply is "IF". When the gauge isn't working, you don't know. Good guesses are usually okay. Usually.
Ken Styer
Ken Styer
in Forum: C3 Electrical
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