ClassicCar

Hudson308

Okay, guys;
I started my '49 262 for a quick cruise this week, and after getting to the end of the block the oil light came on and stayed on. Pulled it back into the garage with no obvious extra tappet noise, and verified the oil level on the stick is fine. No leaks anywhere that I can see. The oil pressure switch is a couple years old. Any advice? I think it may have something to do with the bypass valve, but this is a new one on me. :dry:

Rod

Probably the switch is bad.

Marconi

Unscrew the oil sender switch and screw in a mechanical guage, start the engine and see if you get a reading.

Hudson308

After posting the question, I went out and unscrewed the oil pressure switch and slid a hose over the sender pipe, pushing the other hose end into a jug under the car. I started the engine and let it run for about 5 seconds. The engine had pumped approx. 1/3 quart into the jug. Pressure switches for this application are cheap and plentiful... NAPA Echlin part number OP6079 costs about fifteen bucks. I screwed on a new switch and the problem went away. So, either the switch was bad or there was some debris in that passage. I'm happy the light went out, but I expected alot more oil to be pumped out in that five seconds or so I had it running.

Marconi

If you had been into a regular oil galley it would have been a larger quantity of oil, but in the port for the guage it's a pretty small orfice, just enough to get a pressure reading.

ClassicCar

Howdy, Stranger!

Categories

In this Discussion

We'd love to hear from you! info@classiccar.com