Beanboy Posted September 11, 2006 Share Posted September 11, 2006 Took about eight months for the copper gasket at the uppipe to manifold to fail. OEM in for a few months and that's starting to go as well. Understand if there was noise/fumes after an install, or maybe after a few heat cycles/100 miles. But what would cause a OEM gasket to start to fail after a few months and roughly 2000 miles of driving? Slow warp of the flanges? Bolts stretching? Incorrect/too much tension on the flange? Kinda scratching my head here, since the flange didn't leak after the last two installs. Most of the issues with leaks I've read about have been within a few weeks of install. -B http://www.standardshift.com Link to comment Share on other sites More sharing options...
derffred Posted October 21, 2006 Share Posted October 21, 2006 bump Link to comment Share on other sites More sharing options...
bugblatterbeast Posted October 21, 2006 Share Posted October 21, 2006 I would guess co-planarity problems because the pipe wasn't the right shape or incorrect assembly order. Did you tighten the uppipe to turbo bolts first, then position the manifolds or bolt down the manifolds then tighten the uppipe to turbo bolts. On my car I found that things wouldn't line up perfectly unless the UP to turbo bolts were tightened first. Link to comment Share on other sites More sharing options...
mele63 Posted October 22, 2006 Share Posted October 22, 2006 Rigid or flex UP? If rigid, I would invest in a good flex UP. Keep in mind, the OEM UP is a flex design, so with a rigid UP you need tolerances that exceed even the manufacturer's spec's. Link to comment Share on other sites More sharing options...
GTsleeper2 Posted October 22, 2006 Share Posted October 22, 2006 just get GT-headers Link to comment Share on other sites More sharing options...
GTTuner Posted October 23, 2006 Share Posted October 23, 2006 Rigid or flex UP? If rigid, I would invest in a good flex UP. Keep in mind, the OEM UP is a flex design, so with a rigid UP you need tolerances that exceed even the manufacturer's spec's. Is that true for a manual transmission? My UP was rigid. Link to comment Share on other sites More sharing options...
Beanboy Posted October 23, 2006 Author Share Posted October 23, 2006 All stock uppipes are a flex design, just can't see it under the heat shielding. Update: gasket was replaced and a little silicon thrown in. Am getting a touch of fumes when cold, seals quickly. Good enough for now, hehe. -B http://www.standardshift.com Link to comment Share on other sites More sharing options...
mele63 Posted October 23, 2006 Share Posted October 23, 2006 All stock uppipes are a flex design, just can't see it under the heat shielding. . http://img234.imageshack.us/img234/7862/upflexrw0.jpg Link to comment Share on other sites More sharing options...
TSiWRX Posted October 23, 2006 Share Posted October 23, 2006 Took about eight months for the copper gasket at the uppipe to manifold to fail. OEM in for a few months and that's starting to go as well. Understand if there was noise/fumes after an install, or maybe after a few heat cycles/100 miles. But what would cause a OEM gasket to start to fail after a few months and roughly 2000 miles of driving? Slow warp of the flanges? Bolts stretching? Incorrect/too much tension on the flange? Kinda scratching my head here, since the flange didn't leak after the last two installs. Most of the issues with leaks I've read about have been within a few weeks of install. My understanding of things is that *any* gasket will fail if either the flanges are not a good mate/flat, or if improper installation led to problems with the seal. The hot, high-pressure exhaust gasses essentially "punches a hole" at the weakest point. <-- I love Winky, my "periwinkle" (ABP) LGT! - Allen / Usual Suspect "DumboRAT" / One of the Three Stooges '16 Outback, '16 WRX, 7th Subaru Family Link to comment Share on other sites More sharing options...
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