Proper Oil Pressure

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   I have had an 89’ SN 2001 (w/ PCM 351) for about 1 1/2 years now and the oil pressure gauge is usually between 70 - +80
and sometimes pegs out over 80.  Engine runs great.  What should the oil pressure be?  I plan to check by putting a gauge in place of the sending unit (as suggested on some of the forum threads) and will check the operations of the gauge by removing the wire from the sending unit. Anything else I should check to determine if the reading is accurate and if it is and it’s indeed high, what are likely causes to check and repair?  Thanks so much. 

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bfootr Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: March-04-2019 Location: Benson, NC Status: Offline Points: 138	Post Options Post Reply Quote bfootr Report Post Thanks(0) Quote Reply Topic: Proper Oil Pressure Posted: August-08-2020 at 10:02pm
	I have had an 89’ SN 2001 (w/ PCM 351) for about 1 1/2 years now and the oil pressure gauge is usually between 70 - +80 and sometimes pegs out over 80. Engine runs great. What should the oil pressure be? I plan to check by putting a gauge in place of the sending unit (as suggested on some of the forum threads) and will check the operations of the gauge by removing the wire from the sending unit. Anything else I should check to determine if the reading is accurate and if it is and it’s indeed high, what are likely causes to check and repair? Thanks so much.

Jonny Quest Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2979	Post Options Post Reply Quote Jonny Quest Report Post Thanks(0) Quote Reply Posted: August-08-2020 at 10:17pm
	The sending unit and/or gauge may be faulty. I would expect to see 25-30 psi at idle and 40+ psi at speed. Verification with a mechanical gauge is a good plan. JQ
	Current 2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum

bfootr Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: March-04-2019 Location: Benson, NC Status: Offline Points: 138	Post Options Post Reply Quote bfootr Report Post Thanks(0) Quote Reply Posted: August-08-2020 at 10:21pm
	Thanks JQ

MrMcD Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3750	Post Options Post Reply Quote MrMcD Report Post Thanks(0) Quote Reply Posted: August-08-2020 at 11:30pm
	Check with the mechanical like you planned. Best to start with good info. If it really is 70+ I still would not worry. That is much better than having 10psi at idle.

bfootr Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: March-04-2019 Location: Benson, NC Status: Offline Points: 138	Post Options Post Reply Quote bfootr Report Post Thanks(0) Quote Reply Posted: August-09-2020 at 8:17am
	Thank you MrMcd

Proper Oil Pressure

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