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Originally Posted by KenpoKev
Scott,
(At last I've noted your first name...I'm pretty slow you know)
The material is about 1/64" thick and the product code at the big Napa shop in Carson City was 77. I think the retail was $8.99 and jobber was like $8.40...not much discount, but it's the best quality stuff I've found. However, I managed to get everything sealed up without using the stuff.
Try the tightening sequence, just one more time. Where, exactly are you getting the leaks from?
Kev
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1st time around, I followed the tightening sequence exactly, and I thought I had a minor leak at the *top* of the upipe. I attempted to re-torque just the top of the up-pipe w/o taking the intercooler off, etc. I was able to change the sound of the leak, but not get rid of it.
So, I got some high-temp gasket sealer... loosened the up-pipe at both ends... slipped the gaskets out, put some sealer on both of 'em and reinstalled eveything. I changed the torque sequence to favor the up-pipe/turbo junction. Eveything was cool for a while, then I took the car on a spirited run a few days later and at the top-end I noticed the leak sound.
When I swapped headers with Art, as part of the gauge install, I noticed the it was the lower joint of the up-pipe that was leaking this time! So, during the header install, I favored the header/up-pipe junction in my torque sequence... making sure it was *really* well lined up.
So now, my leak is really minor (much better than the other times) and I only notice it when the car's really hot and I'm under heavy boost. I'm thinking about just tossing a second gasket (i got a spare) in the header/up-pipe junction, since I've heard some people have had some sucess with that. But like I said earlier, the lowered back pressure of an aftermarket exhaust seems to solve the minor up-pipe leaks... so I'll just put the new exhaust on, and see where I'm at.
BTW: How much noise do you get from your wastegate? I'm not sure how much of what I'm hearing is wastegate flutter vs. leak.