Odd Oil Pressure Symptom

Rojoryu · 05-27-2022, 02:04 PM

Quote:

Originally Posted by Spooler

That's low, it should be in the 100's. I beat you have an issue with the boundary gears. It has happened before on a new engine build. I suggest you go back to a new Nissan pump or get the Nismo pump. You could also be seeing
bearing related issues. Either way, you have an issue going on.

For what it's worth, the only time I have ever broken over 100 PSI on this particular car is a cold start in the Winter.

Rojoryu · 05-28-2022, 08:12 AM

I called Boundary yesterday and they do recommend shimming +2 for the VQ platform. If I would have been more patient and done more research I would have figured that out before buttoning the engine up last year. Lessons learned. I purchased a low mileage replacement engine yesterday as well as the full pump assembly from Boundary. This will give me a fresh(er) motor to track with and I’ll keep the current engine on a stand to tinker on.

THE BULL · 06-09-2022, 08:10 AM

I keep reading that these pumps should be shimmed.

The extra pressure will do numbers on that relief.

Luckily for you, you can access the relief just by taking off the oil pan, may want to try this before just in case.

05-28-2022, 08:12 AM	#2 (permalink)
Rojoryu Base Member Join Date: Sep 2021 Location: Charlotte Posts: 48 Drives: 2011 370z Base/Sport Rep Power: 17	I called Boundary yesterday and they do recommend shimming +2 for the VQ platform. If I would have been more patient and done more research I would have figured that out before buttoning the engine up last year. Lessons learned. I purchased a low mileage replacement engine yesterday as well as the full pump assembly from Boundary. This will give me a fresh(er) motor to track with and I’ll keep the current engine on a stand to tinker on. JARblue and THE BULL like this.

06-09-2022, 08:10 AM	#3 (permalink)
THE BULL Base Member Join Date: Apr 2021 Location: Florida Posts: 216 Drives: G37S Rep Power: 26850	I keep reading that these pumps should be shimmed. The extra pressure will do numbers on that relief. Luckily for you, you can access the relief just by taking off the oil pan, may want to try this before just in case. SwedeZ and Rojoryu like this.

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