On my 1968 31 Commander my oil pressure gauge pegged out today when I switched on the ignition and it stays there?? A new wrinkle. We did some crawling around the engine last couple times to the boat. Thinking we may have gounded a wire or knocked it off. Doesn’t seem like excessive pressure if the gauge pegs without the engine running. Can someone tell me where the sending unit is typically located? Does the sending unit fail full on or off? Anyone tell me the standard colors for the sending unit on the engine terminal block ? Ran the engine for 30 min no issues, no overheating. Just gremlins!
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Thanks for the tip will do… I am running 327/350 and its the port engine so I can do that fairly easy.