low oil pressure follow-up

alexander38 · Post by **alexander38** » Sun Mar 15, 2009 3:15 pm

yeap the bypass system is in the filter housing, is in there just in case the filter gets glogged up

jddens · Post by **jddens** » Mon Mar 16, 2009 8:23 pm

Got down to the boat today and reinstalled the oil pressure sending unit and tested the motor.....results are ok. 40+ when cold at idle and 15-20 or so when warm at idle.....not sure what changed but I won't argue......I will go forward and keep an eye on it............thanks again to everyone for your input.........gotta love this site, lots of good help given freely.......it is appreciated!!!!!!............John

Stripermann2 · Post by **Stripermann2** » Tue Mar 17, 2009 8:26 am

I believe GM's oil pressure acceptance is 10 psi per 1,000 rpm. Of course on a warm motor, she'll drop a bit.

Sounds like you'll be fine...