3K Won'T Build Oil Pressure At Start Up.

[RA28GT]

Hey guys got a bit of a wires issue with my Panel. The 3k takes a long time to build any oil pressure on start up. I'm talking like 5-10 seconds which seems far far too long.

 

Once it's built the pressure it seems fine.

 

I've got around it right now by putting a switch onto the coil that allows me to turn over the car without ignition, but it takes seriously 20-30 seconds of cranking to get the oil light to turn out!

 

Anyone had this before? Oil pump is in the sump right? Which means engine out to replace?

[Twinky]

Is the oil pressure switch itself in good condition? A few other reasons it would take a while to build up pressure is if you have a major leak

somewhere in the system or what you don't want it to be - oil pump. Another thing could be a blocked oil pickup. So if you don't have oil leaks

around the motor then it is a good possibility that it is either of those.

[Felix]

What sort of oil filter are you running?

[19914afc]

Shouldn't have to take the engine out to replace it, should just be able to take the sump off and change it.

Or cheap possibly cheap oil filter that has no anti drain valve?? Just like when you do a service on a car then start it after changin oil and filter takes a little while to fill the filter, ect.

Edited April 9, 2011 by 19914afc

[jono1986]

Throw in the 3k you got from me, built up pressure quickly. Or try using that Sport oil stuff...ummmmm.....25/50w I think, stuff does wonders on worn motors.

[altezzaclub]

Replace the oil filter!

 

Either it doesn't have a non-return valve or its broken. I'll bet its fine if you start it up after 5minutes turnoff, but it drains away when turned off for longer.

 

We had that problem, easily fixed with a filter, but I replaced the bearings later on as they were scoured from a year of no-oil starting before we bought the car.

 

Its a dog to do in the car, whip the motor out! Make sure you change the studs in the timing-chain cover for bolts while you're doing it.

[Andy43]

If had the same problem a while back.

There is a blead back valve in the filter that keeps the oil up to the head when the engine is shut down.

The valve has shit its self.

Put a z68 on it and you should be sweet.

The good news is when you remove the old filter oil wont spill every where as it drained into the sump

[thcraig87]

Agree with the check your filter stuff, but if it didn't do it before and it does now then I you sort of need to find out why. Remember that smaller sized filters will give you a higher oil pressure and may help to build the pressure a little quicker.

 

I had a similar problem with my 4K, don't know if it applies to the 3K though. She would rattle on start up and take up to five seconds for the oil light to go off and then was fine while running. It was the timing chain tensioner, relatively easy fix, all good after that. So it could be that.

 

I think if it was the pump or a blockage then it may go on for longer than the first five to ten seconds and probably give you other problems while driving? Not sure??? Hope it helps.

[love ke70]

as has been said, most likely a cheap ass filter with no anti drain back valve.

 

but the other thing to do is put an oil pressure gauge on it.

 

i had a motor that would make about 3 psi at idle, and would turn the light out. but not when on a hill.

 

oil pump was shagged in that.

 

even if it is an engine out job, you could do it in a weekend

[RA28GT]

Turns out it was just a crappy filter!

 

Bloody easy fix, it was time for a full service and clean out anyway. Just need to get her tuned now.