transamrebel
$IX FIVE!
hey guys, my gasket that seals the turbo to the exhaust manifold is blown out and im having trouble locating a replacement, any ideas?
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need turbo the manifold flange gasket
- Thread starter transamrebel
- Start date
540s10
New Member
no gasket, but if you want piece of mind use a thin coat of permatex ultra black on the flanges before bolting them together
transamrebel
$IX FIVE!
really? i thought it was like a copper gasket, ive seen em in injector instalation kits, last time i had mine off we used a random gasket that fit it well, but a nut backed off and its leaking out the front corner
Matt Bachand
Depends on the 6.5
No gasket. If your turbo band clamp is in good shape try removing it and re-tightening it.
GM had a great idea making a SS clamp with a non SS bolt... mine was so rusted I had to cut it off and replace the turbo band clamp which is around 40 bux.
GM had a great idea making a SS clamp with a non SS bolt... mine was so rusted I had to cut it off and replace the turbo band clamp which is around 40 bux.
transamrebel
$IX FIVE!
no im talking about where the cast iron exhaust manifold bolts to the bottom of the turbo, the square flanges.
bobbiemartin
Author of The DB2 Conversion Guide
I get mine at a Fuel Injection shop. I haven't found them anywhere else.
83GMCK2500
Active Member
What year of truck? Are all 6.5L turbo flanges the same?
transamrebel
$IX FIVE!
its a 97, and yea all the turbos should have the same flanges
83GMCK2500
Active Member
From the GM EPC, I don't see a gasket. :nonod:
Turbine Doc
Just Another Diesel Guy
There is one, I've got one I didn't use since I'm ATT equipped when I did my injector change last week, p/n on it is 3709861, also you may need turbo drain line gasket 3937706. see if you can find locally, if not PM me.
83GMCK2500
Active Member
Tim, are those GM P/Ns?
Turbine Doc
Just Another Diesel Guy
not sure those p/ns are stamped into the parts I have in front of me so I'll hazard a guess they are GM p/ns possibly a Dipaco or Delphi p/n as well, they came in the same packet as my injector return lines came in
83GMCK2500
Active Member
I googled it, someone said that it is a Holset number. (Dodge forum) That explains why I can't find it in GM's EPC...:mad2:
NoDak
Next project - fuel mizer Suburban
The oriniginal didn't have a gasket, so I didn't treat my ATT to anything special like a gasket. But, I wouldn't be afraid of using a little anti-seize across the mounting face. Take a look at the surface condition and flatness, if it makes you nervous, you might be ok with a gasket. I'm of the opinion that more parts is not always a good idea. And with that advice and 80 cents you might be able to buy a cup of coffee, lol.
SmithvilleD
Active Member
It's a standard T3 sized flange, so if you want to run a gasket, get something like this:
http://www.summitracing.com/parts/TNT-30263/?rtype=10
If the surfaces are adequately flat/straight/smooth, a gasket isn't absolutely necessary. FWIW - the stainless gaskets like in the link above are a reliable turbine inlet gasket. When combined w/ good sealing surfaces, they seal exceptionally well & have the structural integrity to not blow out.
If getting a T3 sized gasket, you need to make certain it's for an open (not divided) style inlet.
http://www.summitracing.com/parts/TNT-30263/?rtype=10
If the surfaces are adequately flat/straight/smooth, a gasket isn't absolutely necessary. FWIW - the stainless gaskets like in the link above are a reliable turbine inlet gasket. When combined w/ good sealing surfaces, they seal exceptionally well & have the structural integrity to not blow out.
If getting a T3 sized gasket, you need to make certain it's for an open (not divided) style inlet.
Last edited:
I put some muffler repair goop down like you would RTV on my turbo because it was starting to leak there. This was in a new manifold, $99 ebay, though.
Your problem is likely a warped manifold if it will not seal without a gasket. As above a cheap part to buy new.
Your problem is likely a warped manifold if it will not seal without a gasket. As above a cheap part to buy new.
buddy
Active Member
I didnt have one before and dont now, but maybe Ill throw one on next weekend when Im changing out downpipe and muffler. Trying to quiet it down a bit, and could be noise from there.