Oil pressure slow to build
Turbo Mini Forums

Its a newly built n/a engine thats running a remote filte in addition to the standard oil filter. When I start the engine for the first in the day it wont build oil pressure ticking over. I need to drive it slowly to get the light to go out. For the rest of the day it will go out in a few seconds after starting. Is this normal with a remote filter, or what could be causing it?

Yes i moved to the darkside

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make surethe oil pressure reliefe valve is not stuck open ?
after that had been checked out
my advice is ..... ditch the remote filter and use the standard set up which is well proven!

if you sticking with the remote filter i suspect that its partialy air locked this need sorting before you damage the bearings on the crank .............

damaged may have already been caused making the problem worse for you ... try it with out the remote filter and see if the oil pressure is ok

EDIT:- AS Bret suggested did you check fit ? the O ring between the gearbox and engine

Edited by BENROSS on 16th Feb, 2010.

In the past I have had an engine do that. Stripped the engine down and found that one of the cam bearings had spun in the block which then wasn't allowing flow around the engine. This destroyed main/big end bearings, cam bearings, and my crank which was hardened only just survived without a regrind.

Thats wierd.


Looking at the block in my room I can't see how the cam bearing spinning would destroy the whole enigne. as the oil seems to flow to the mains first, then the cam bearings.

Edit: Crap English

Edited by minimole23 on 17th Feb, 2010.

The bearing spun and blocked one of the holes off. It stopped oil getting to the top of the engine. My theory was that the pump was just pushing oil straight onto the main/big ends and never being replaced with oil that had gone through the system to be filtered properly. I ran it like this for around 50 miles before I noticed but by then it was to late.

Normally you get the highest oil pressure from first start up. Try priming first...if it works then pump issue.

How high is the oil filter and in what orientation?

Sorry to hijack the thread but how long does it take to get oil pressure just off the starter motor. I'm about to fire the turbo up in a couple more weekends and at the moment I've just checked that oil pressure is there. It's taking around two 5-10sec attempts. once the pressure shows on the mechanical gauge it goes all the way round to 100psi. Should it normally take this long or am I just worring for nothing.

that sounds fine.