Turbo-Manifold Gasket

[atomic]

Hey there,

I've been fighting for a while with sealing the turbo to the manifold .

I started with the high temp copper . of course that's only good to 700F and the vibration wears it away .

Then i went to one of those CarbonX sheets . It was nice for nearly 24 hours . Then the vibration got to it .

What next? I was thinking of cutting one from a copper plate . But i'd have to find a copper plate first .

Or does anyone have any suggestions to what to use? Or a place in town that might carry a gasket for a GT25R ?

[98brg2d]

atpturbo.com and order online.

I use a steel gasket with a rolled edge and haven't had any issues with inlet gaskets, discharge gaskets are another story though.

[Supa Dexta]

Have you made sure the surface is flat?

[atomic]

hi there. yeah the surface is very flat . I put the two together 2 days ago when i replaced the gasket with one of htose carbonx ones .

i just phoned alamo . i forget they existed until i was on hold with speedtech and i remembered my friend getting a turbo rebuild kit from there .

they have plenty of gaskets, i'm heading there now

http://www.alamoturbochargers.com

[sr20s14zenki]

are you sure your nuts arent backing off? thats very strange that your gaskets would go simply because of vibrations, ESPECIALLY with a copper gasket

[atomic]

Originally posted by sr20s14zenki
are you sure your nuts arent backing off? thats very strange that your gaskets would go simply because of vibrations, ESPECIALLY with a copper gasket

i might not have made myself clear . i don't have a copper gasket, the question was where to get one .

the nuts are backing off . bolts are backing off due to vibration . then the more vibration causes the gasket to wear .

[dj_honda]

Originally posted by atomic


i might not have made myself clear . i don't have a copper gasket, the question was where to get one .

the nuts are backing off . bolts are backing off due to vibration . then the more vibration causes the gasket to wear .

I've always used studs with hi temp loctite in the manifold. it makes it easier to take off/put on the turbo too. Once the turbo is on there, I use a lock washer and a nut with a dab of some more loctite. Has always worked.

Also I use the same gasket mentioned...from atp turbo.

[hamburgler]

There is no need for a gasket if both surfaces are flat. I had the same problem last year, kept blowing out gaskets and had a bad case of turbo lag. Just take the manifold off and take the turbo and manifold to a machine shop to get it resurfaced. Problems solved. Use lock-tite on the four bolts holding the turbo and manifold together. I also used lock washers.

[Mr_ET]

^ same for me and it never leaked.

[88jbody]

if both surfaces are flat (check them with a straight edge)

I have used a thin coat of muffler cement and it held great
as well as a thin coat of grease, then when it heats up it will seal it very well as well. but the surfaces have to be flat

[Supa Dexta]

Depending on the size of the flange it can be as simple as running a belt sander over it.

[sr20s14zenki]

Theres a special anti-vibration washer that me and my friend are trying out, basically if you take the washers, put them on a nut/bolt, and just put them hand tight, you cant undo them unless you have a wrench and use about 15 ft/lb of force. I can ask him where he got them for you. Even if you get a copper gasket, if the bolts back off its still going to mess it up.