Odd Oil Pressure Symptom

Rojoryu · 05-27-2022, 06:44 AM

Quote:

Originally Posted by fryzia23

Did you get oil pump gears only or did you get complete pump assembly from boundary?

Just the gears. The OEM pump is still being used.

fryzia23 · 05-27-2022, 11:14 AM

Quote:

Originally Posted by Rojoryu

Just the gears. The OEM pump is still being used.

I installed their pump with their billet cover with 2 relief shims already preinstalled from boundary. Hope it won't give me any issues with oil pressure

THE BULL · 05-27-2022, 01:28 PM

Quote:

Originally Posted by fryzia23

I installed their pump with their billet cover with 2 relief shims already preinstalled from boundary. Hope it won't give me any issues with oil pressure

These gears with 2 added shims to the relief should be yielding higher cold start numbers. A contaminated relief should yield higher numbers.

Lower numbers can be contributed to excess bearing play, damaged gears, leaking oil pump housing, blocked oil pick up, relief collapsing due to really high initial pressures (somewhat unlikely)

Throw oil filters every 1k miles and open your old ones, these should give you better insight if you're wearing prematurely.

Rojoryu · 05-27-2022, 01:57 PM

Quote:

Originally Posted by THE BULL

These gears with 2 added shims to the relief should be yielding higher cold start numbers. A contaminated relief should yield higher numbers.

Lower numbers can be contributed to excess bearing play, damaged gears, leaking oil pump housing, blocked oil pick up, relief collapsing due to really high initial pressures (somewhat unlikely)

Throw oil filters every 1k miles and open your old ones, these should give you better insight if you're wearing prematurely.

I didnt use any shims. Also, it’s been warm the past few weeks. The PSI mentioned is on a 85-90 degree day.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Fuel Pressure Graph & WOT Pressure Drop	MotorvateDIY	Engine & Drivetrain	2	04-26-2022 04:22 PM
Low Oil Pressure	Ben370	Engine & Drivetrain	20	11-09-2021 05:34 PM
Oil pressure	thavent	Engine & Drivetrain	18	06-02-2020 06:36 PM
Help: Transmission symptom after new clutch install.	Mr&Mrs	Engine & Drivetrain	10	01-03-2020 01:25 AM
Symptom of dying battery?	Stosh Rickles	Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs	8	06-26-2012 11:57 PM