Oil deposits under inlet manifold/low vacuum

[LEE69]

Been getting this but I have no split pipes.
Also on idle i am getting about 18 on vacuum where as i use to get 22
I am boosting to 10 PSI no problem though.

Been searching about and found out this valve

Is called a suction pump valve and

Check valves are used through the car's vacuum system to operate things like wastegates, brake boosters, and even boost gauges. If you're having any problems with your vacuum system these valves could be the culprit. They allow vacuum to pass one direction and not the other. A bad check valve can lead to vacuum leaks which could affect all sorts of other items.

Part number for my AUQ engine is 058133753B
Just got to order it and try it.

 

[james walker]

hmmmmh, these dont whistle so they??/ lol

 

[LEE69]

lol not noticed any whistling mate, but you never know.

 

[Trublu07]

Where did you find this mate? Think I need one.

 

[LEE69]

Under the inlet manifold.

 

[greesha]

I got rid of it

 

[Cowie]

Is that part of the PCV set-up?

 

[greesha]

YEs the little wedge thing after the first elbow coming out from first from left outlet from inlet manifold

 

[sambryant]

As greesha said, bin it. I put money on it that these were made to fail.

 

[Cowie]

YEs the little wedge thing after the first elbow coming out from first from left outlet from inlet manifold

Have you took all your PCV out mate?

 

[greesha]

Yes, i have completly removed pcv piping and i have installed oil catch can in place.

 

[Cowie]

Yes, i have completly removed pcv piping and i have installed oil catch can in place.

Nice one mate,may pick your brains as to which pipe to remove/block etc ok?

 

[Cowie]

Is ok mate,after reading all your build thread found the link to ukmivs,it's all there so will crack on with this at the weekend ,hopefully along with fmic install

 

[LEE69]

Here is the link for others http://uk-mkivs.net/forums/t/269734.aspx?PageIndex=1

 

[Cowie]

Cheers Lee.

 

[Deleted member 43482]

What would the symptoms of having a leak in the PCV system be?

 

[LEE69]

Poor running/idle, low boost, limp mode.

 

[Trublu07]

Lol Lee I meant where did you see it for sale. I found a site which has one listed as revision d.

 

[LEE69]

lol when i read it i wasn't 100% what you meant, i got mine from seremotors on here.

 

[Trublu07]

I didn't make it that clear. Did you take the inlet mani off to change the pump and breathers? Roughly how much was it mate. I am thinking of just getting the pump and upgrading the hoses to forge ones.