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Trident oil pressure #781982 08/20/19 12:16 am
Joined: Aug 2001
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Curmudgeon Online Content OP
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Just installed a oil pressure gauge and it reads 80psi at idle, cold oil. Rev up the engine and gauge stops at 100psi so that's what the OPRV is set at. This seems a bit high to me and I'm wondering what you guys think. Thanks.


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Re: Trident oil pressure [Re: Curmudgeon] #781984 08/20/19 12:24 am
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Jerry Roy Offline
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Warm the oil up to 180 deg F or so, and then check the pressure at idle and 4000 RPM.
That will tell you how the clearances are.

Re: Trident oil pressure [Re: Curmudgeon] #782010 08/20/19 4:15 am
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I just installed the gauge from Triples Unlimited. Cold oil gives me 95psi. I was also surprised to see 80psi at close to idle with cold oil.
After yesterday's 20 mile ride the reading was 60psi at 4000rpm, 80psi at 6000rpm, and a little under 20psi at idle before I shut it off.
Oil temperature measured in the oil tank was 190 degrees when I got home. I have a thermostat on the oil cooler.
BTW: The Trident OPR valve is supposed to open at 75psi.


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Re: Trident oil pressure [Re: Curmudgeon] #782013 08/20/19 4:41 am
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tridentt150v Offline
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Originally Posted by Curmudgeon
Just installed a oil pressure gauge and it reads 80psi at idle, cold oil. Rev up the engine and gauge stops at 100psi so that's what the OPRV is set at. This seems a bit high to me and I'm wondering what you guys think. Thanks.

That's normal, as David said, settles when warm.

Re: Trident oil pressure [Re: Curmudgeon] #782037 08/20/19 1:31 pm
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DMadigan Offline
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My factory manual gives "Pressure release operates 90 PSI" for the OPRV. Presumably when the valve starts to open so final pressure depends upon the flow.

Re: Trident oil pressure [Re: Curmudgeon] #782050 08/20/19 4:37 pm
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Adam M. Offline
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It's normal on the cold oil.
David P - your hot oil pressure figures are exactly like mine.


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