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+--- Thread: Cm871 new oil pump pressure (/showthread.php?tid=5146)
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Cm871 new oil pump pressure - Bigstank - 10-05-2019
Hey guys I was wonder with this new oil pump that cant be shimmed. What should the pressure be? Mine runs 35lbs @ 1500. The old pump before the rebuild was 40lbs. Anyone else run the new style pump and what's your pressure
RE: Cm871 new oil pump pressure - Lonestar10 - 10-05-2019
pretty sure new not NOS but the actual new ones their coming out with now are suppose to run at the pressure a shimmed old style does.
RE: Cm871 new oil pump pressure - Bigstank - 10-05-2019
(10-05-2019 )Lonestar10 Wrote: pretty sure new not NOS but the actual new ones their coming out with now are suppose to run at the pressure a shimmed old style does.
IDK MrHag just rebuilt mine last month and the pressure is less. It also drops pressure as the rpm drops. @1400 its 33psi and 1300 its 31psi. I was trying to figure it out cause I also got a new X15 and it runs 40psi @1500
RE: Cm871 new oil pump pressure - Unilevers - 10-05-2019
thats low - all mine with the new pump run 40ish. old pumps i shim slightly over 40. something sounds weird there.
RE: Cm871 new oil pump pressure - Bigstank - 10-05-2019
(10-05-2019 )Unilevers Wrote: thats low - all mine with the new pump run 40ish. old pumps i shim slightly over 40. something sounds weird there.
That's @ 1500rpm
RE: Cm871 new oil pump pressure - Lonestar10 - 10-05-2019
maybe you got a NOS pump instead of a NEW design pump im sure some places still have the old 35-37PSI pumps on the shelf and im guessing there has to be something to look for to tell if its old design or new design when your replacing.
RE: Cm871 new oil pump pressure - Volvo8873 - 10-05-2019
Could very welll be the gauge itself...
RE: Cm871 new oil pump pressure - Bigstank - 10-05-2019
(10-05-2019 )Volvo8873 Wrote: Could very welll be the gauge itself...
Could be the gauge idk I'll check tomorrow.
RE: Cm871 new oil pump pressure - Bigstank - 10-05-2019
(10-05-2019 )Lonestar10 Wrote: maybe you got a NOS pump instead of a NEW design pump im sure some places still have the old 35-37PSI pumps on the shelf and im guessing there has to be something to look for to tell if its old design or new design when your replacing.What's a NOS pump. Sorry to sound dumb on ya lol