Hi Everyone,

I am just wondering if cossie's use a gasket between the turbo and the exhaust manifold ?

I have a 2wd turbo fitted to to 4x4 manifold and I am running a steel gasket inbetween the two, although I was talking to a fella who was telling me that i don't need to be running a gasket ?

I noticed some smoke coming from the turbo when my car was idling last night, I couldnt determine whether it was coming from inbetween the manifold and the turbo, the turbo core etc.. could even be the oil feed leaking slightly i suppose.. I will check this out properly in the light today.

If is was leaking from inbetween the turbo and manifold would I hear a leak ? and could this cause the boost to bleed back significantly ? The turbo is a 2wd turbo with a larger t4 compressor wheel and housing and peak boost is at around 20 psi at the moment and it is bleeding back to 14 or probably less. If it had a boost leak in the intercooler or plumbing would it build the boost in the first place ?

I have a - 31 actuator, turbo smart bleed valve, 3inch exhaust. I might try taking off the air filter to see if there is a restriction there ?

Any advice would be greatly appreciated.
Thanks,
Damion.

 

i havnt had gaskets on any of my cossies.
i would remove and see what its like.

 

as far as i have seen there should not be a gasket between them !!

 

no gasket.... think where the bits will end up if the gasket falls to bits....shagged turbo anyone dont use paste either, just skim them flat, and bolt them together

 

Cheers fellas

 

Had a gasket there on my last cossie but took it off when rebuilding head after a tuner said they're not necessary... then had a small leak there after that!!! (only my personal experience)

When I get that far in my build i'll be using one again... especially when they're only Ł16 or something from Ferriday!!!

 

Hi, cheers for the reply.. Yeah I don't think I will bother removing it since it is already there. I was just chasing a boost bleeding back issue, but i am told that if it were a manifold leak i wouldnt see the boost in the first place.