[zeniac]

will high temperature gasket marker stop leaks at the flange? i see carbon residue at the turbo flange, nearest to the wastegate flange.

[Robert]

Originally Posted by zeniac

will high temperature gasket marker stop leaks at the flange? i see carbon residue at the turbo flange, nearest to the wastegate flange.

Are you referring to the turbine outlet flange?

[zeniac]

Originally Posted by Robert

Are you referring to the turbine outlet flange?

yes.

[Robert]

Originally Posted by zeniac

yes.

In that case yes some high temp RTV should help in that area.

[zeniac]

Originally Posted by Robert

In that case yes some high temp RTV should help in that area.

i'm going to take my turbo apart this weekend. just in case it leaks at the turbo inlet, would high temp RTV be useful there?

[Robert]

Originally Posted by zeniac

i'm going to take my turbo apart this weekend. just in case it leaks at the turbo inlet, would high temp RTV be useful there?

If the turbine inlet gasket is on there and the turbo is properlly bolted down there should be no leaks there. The one place I would recommend to use high temp RTV is the turbine discharge flange. In fact Turbonetics recommends to do so in the install guide.

[BreakTheStatic]

I've had the same problem as you. The high temp rtv is a BS solution. The highest temp one I could find could withstand up to 700 degrees fahrenheit intermittently. Turbos get much hotter than that, and they sustain those temperatures. The rtv will melt away shortly leaving you with the same exhaust leak you had before.

[Robert]

Originally Posted by BreakTheStatic

I've had the same problem as you. The high temp rtv is a BS solution. The highest temp one I could find could withstand up to 700 degrees fahrenheit intermittently. Turbos get much hotter than that, and they sustain those temperatures. The rtv will melt away shortly leaving you with the same exhaust leak you had before.

I'll try to find the stuff the Z guys are using but its some kind of copper sealant which withstands like 1000 degrees F. They are getting it at NAPA but I forget the exact name.

[BreakTheStatic]

I've used the copper permatex as well and it does the same thing. It wasn't shown in that pic , but I have also used the copper one (performance motorsports gave it to me)

[Robert]

Originally Posted by BreakTheStatic

I've used the copper permatex as well and it does the same thing. It wasn't shown in that pic , but I have also used the copper one (performance motorsports gave it to me)

Interesting. I and about 20 other shops I know have used that stuff on turbine flanges before and it seems to work ok. Granted the mating surfaces need to be aligned and mated up properlly. The flange for the turbine discharge and the turbine discharge flange are both machined completely flat before they leave so the Permatex is really meant to be more of a precaution then a gasket. I didn't even use Permatex on my turbine discharge connection and it doesn't leak... If the downpipe is tweaked a little it could cause the mating flanges to be off and force a leak quickly..