Sticky pressure relief valve?, Erratic oil pressure issues with new T4 motor |
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Sticky pressure relief valve?, Erratic oil pressure issues with new T4 motor |
RoadGlue |
May 27 2019, 07:22 PM
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#1
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California |
Hey everyone, hope you're all doing well.
My newly built four banger's oil pressure is all over the board and I'd really appreciate any advice you might have. When the pressure is behaving normally, I'm seeing a pretty normal fluctuation from 10 PSI at idle to 40-something at cruise. However it seems that depending on direction I'm turning (maybe!?) the pressure can jet up to 65+ PSI which of course is alarming. Worried I'm going to blow out seals. It doesn't always jump up though. It's rather inconsistent. At idle I've had it stick at around 60 lbs as well. Giving the throttle a jab seems to free it up and it'll drop back down to where it's supposed to be. I think it's a stuck pressure relief valve. If it were stuck in a high pressure state, would cornering have some effect on the pressure spikes? I'm using Penn 20-50 and everything I listed was at normal operating temps (130-180 F). Thanks!! |
McMark |
May 29 2019, 11:21 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
You running a tuna can on this beast?
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RoadGlue |
May 29 2019, 01:03 PM
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#3
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California |
You running a tuna can on this beast? Hey Mark! Nah, not on this motor. The windage tray seals are new from 914rubber.com, but if the new gauge and sender combo doesn't fix this, I'll drop the screen filter and plate and see if there's anything that could possibly be floating around in the sump. I'd just expect to see pressure dip vs. spikes if that was the case. I'll report back once I have the new sender and gauge installed. Thanks buddy! |
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