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Weird Oil Pressure Readings

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Old Aug 15, 2006 | 11:05 PM
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TFeld78's Avatar
TFeld78
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Melting Slicks
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From: Topeka-Pothole capital of the universe
Default Weird Oil Pressure Readings

My 78 with the L48 started having oil pressure readings close to 80. I replaced the sending unit and now the reading is pegged all the way to the right, well past 80. Is this a bad gauge?

I might add that the unit I removed had a pinhole size aperature. The replacement had an opening closer to the diameter of the tube, so maybe the sending unit is the wrong one.

I changed the oil at the same time I replaced the sending unit.

How can I tell if the oil pressure is truly this high, and what would cause it?

Thanks!
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Old Aug 16, 2006 | 03:26 PM
  #2  
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BBNJKen
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I recently rebuilt my engine, and added a mechanical oil gauge to the engine compartment for use during intial break in. If you did the same, It could serve as a benchmark to compare to the electro mechanical stock guage.

Anywho, 80 PSI @ idle sounds high, to say the least.

Cheers

BB NJ Ken
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