Oil PRV

For all Carb and Injection engines, standard or modified plus non-standard engine transplants. Heads; Blocks; Cooling (including heater issues related to the cooling system); Mounts etc
Forum rules
Hints, tips and guides for repair and modification - the FAQ section on the main website is worth checking first for information relating to common faults and technical help. Useful posts and guides will be added to the FAQ http://www.sciroccoregister.co.uk/scirocco-faq
Post Reply
stys0n84
Posts: 85
Joined: Thu Jan 23, 2014 6:05 pm
fill in the right answer: 15

Oil PRV

Post by stys0n84 »

Hi where is Oil PRV is it in the sump with the oil pump? I ask because I think it's sticking open on startup from cold.

I'm getting normal pressure at idle but when I go to accelerate the oil pressure goes off the scale and the engine misses and cuts out.


So I'm thinking the valve it's sticking open and flooding the tappets and stopping them closing and stopping the compression cycle.

The tappets are nearly new and all the clearances are fine and working as they should.


Start off slow and methodical, that doesn't work so shout curse and hit it till it works.


1255
stys0n84
Posts: 85
Joined: Thu Jan 23, 2014 6:05 pm
fill in the right answer: 15

Re: Oil PRV

Post by stys0n84 »

I've trawled forums and found out for definte that the prv is part of the oil pump on a 16v so I'm hoping it's the same for 8v plus my oil pump will need changed soon anyway so no harm done even if it's not the same as 16v.


Start off slow and methodical, that doesn't work so shout curse and hit it till it works.


1255
User avatar
go-for-it1
Posts: 463
Joined: Mon Apr 06, 2009 10:42 pm
fill in the right answer: 10
Location: Blackburn

Re: Oil PRV

Post by go-for-it1 »

If your oil pressure is high then the PRV is sticking shut not open. The PRV is normally slightly open when the engine oil is cold to keep the pressure at a controlled level below 5 bar. Regardless of open or shut if you have pressure problems then change the pump sooner rather than later before any damage is caused.


Image
1990 Mk2 GT2 in Pearlescent green.
2012 BMW 520d M Sport
2013 Golf TDi 140bhp
Member No 1241
stys0n84
Posts: 85
Joined: Thu Jan 23, 2014 6:05 pm
fill in the right answer: 15

Re: Oil PRV

Post by stys0n84 »

Kool thanks


Start off slow and methodical, that doesn't work so shout curse and hit it till it works.


1255
stys0n84
Posts: 85
Joined: Thu Jan 23, 2014 6:05 pm
fill in the right answer: 15

Re: Oil PRV

Post by stys0n84 »

Fitted new Oil Pump and it's worked a treat all fixed


Start off slow and methodical, that doesn't work so shout curse and hit it till it works.


1255
Post Reply