Update...
Slow progress yet progress still...
I have installed a mechanical gauge where the old sender had been installed.
I removed the incorrect oil pressure sender I had installed.
I wired around the ground cross connect for the current sender. Same pegging of the oil pressure gauge. Wiring good. Sender looks to be the culprit.
I am evaluating ways to test the gauge which only reads zero or pegs at 80psi.
I am sourcing a new sender that will be compatible with existing gauges.
The mechanical gauge has been great. Husky, $20 from Home Depot.
Confirmed actual oil pressure is 40psi as it has always been.
Located a great spot to install a multi-gauge/sender mounting plate, where I will install OPSS, mechanical gauge, and oil pressure sender this winter. Really a revelation to extend pressure hose to plate and all oil related gauges.
Much better perspective on replacement components I want to keep on board.
Much better perspective on resistance, continuity, and wiring around electrical cross connects to test.
Thankful.
__________________
Tim Smith
Oasis
Pearson 30
1974, Number 572
Boston, MA USA
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