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I think they are supposed to limit pressure to around 70 psi and since mine was going to 100 I figured it must be bad. I replaced it with a new one from Memphis Equipment. No more 100 psi.

It ended up I had two problems. The pressure regulator was bad but that was an easy fix. Then after a while I figured out the fuel density compensator went bad as well and dumped fuel into my oil. I bypassed the FDC, drained the oil/fuel mix (7.5 gallons), put in fresh oil and now all is well at...

Do you guys know where I might find a NOS oil pressure regulator?

Got a '72 M35A2 LDT-465-1c Whistler. 35,000 on odo. 215 on hour meter. Oil looks fresh. Did a lot of searches and got lots of good info but still not sure what's up. Maintenance manual is on order. I was getting a very low pressure indication so per the info I got here I installed a Sunpro...