pressure relief valve spring
i seem to have a problem with high oil pressure no matter what the engine temp. (goes to zero though when kill ignition)
To check the pressure relief valve spring do i need to drain oil? will it pis* out all over me?
I don't think it will but if someone could confirm this for me?
also where is it as you look at the front of the engine?
you gotta take off the sump to get to the relief valve on the inside of the block by the oil pump.
Do you? I thought it looked quite accessible?
Originally posted by jjcymru you gotta take off the sump to get to the relief valve on the inside of the block by the oil pump.
Sump can stay in place. What does have to be removed is the o/s front engine mount - which is a bit of a git.
The cap for the PRV is directly under it.
I'm sure it's only the power steering pump that's in the way?
Oh and I am just talking about the Mk2 Astra GTE
yeah just for a gte16v. Gonna have a look now, hopefully i wont have to drop sump or engine mount.
I thought it was just pas pump in way too mattj
Yeah, think you're right about the PAS pump actually.
I know for a fact on the Eco's that the mount physically covers the PRV - I risked it, got it half way and it jammed!
DOH!! Forgot we were talking about a GTE anyway
Yeah it's deffo the power steering pump. Just loosen the mofo bolts off holding it on.
well u learn somethin new everyday!
was told the other day by a mate of mine who rallies GTEs about fitting a washer to the relief valve spring, as this would allow for higher oil pressure within the engine, esp the top end under high load of rallying it requires plenty of lube.
All sounds good but i wouldnt fancy a washer going it alone in my engine no chance.
What do u guys think?
Yeah it does raise the pressure a bit. The SBD one comes with 5 washes for you to fiddle about with. The washer's themselves sit inside a nylon (metal for standard) plunger type thing and there's not really anyway for them to come out and mash your engine.
so sticking a washer on the std relief valve is a worthwhile mod?
but obviously too much pressure is as bad as too little i guess?
Yeah it is. But personally I'd get the SBD Nylon one. I know it's like £50 but it does come with the correct size washes
wasn't there an issue with the nylon one??? gary/16vastra??
No I don't think so. I think 16vastra was a bit miffed about it because it stuck again or something??!?
Yeah, I seem to remember someone who was less than happy with oil pressure after fitting the nylon jobbie....
Originally posted by Ste_Nova wasn't there an issue with the nylon one??? gary/16vastra??
Well the thing is that the oil pressure is set by the amount of washes you use. What 16vastra was miffed about is that they are not meant to stick like the metal ones.
Originally posted by astraderv Yeah, I seem to remember someone who was less than happy with oil pressure after fitting the nylon jobbie....
Hmmm, bannana skins in the sump, that'll sort her out
cheers guys will loosen pump and see what spring is like.
i am now running the minimum number of washers (you have to have 1 either side of the spring) and my oil pressure is high.
where can you get the spring and piston from???
can get the piston anywhere, vaux discontinued it!!!
not sure i've got the right place where the valve is.
Is it at front of engine as you look at the bonnet of the car , bottom left hand side of engine, above sump and behind a mounting bracket that has three bolts on it?
I've taken this braket off and slipped the belt off the pulley.
This bolt appears to be about a 19mm or 21mm??
is this right bolt that contains the spring before i take it out?
That sounds like the puppy