Silver86 Posted March 2, 2015 Report Share Posted March 2, 2015 I have an exhaust leak at the turbo to manifold flange. As you know, the available gaskets are paper thin. Will the thicker gaskets for a DSM work for a stock Starion turbo and manifold combination? Thanks! Link to comment Share on other sites More sharing options...
NotStock88 Posted March 2, 2015 Report Share Posted March 2, 2015 (edited) Is there a stud broke off in the head and not holding the flange tight? Generally, if your gasket is leaking its either no good anymore and needs replaced or your manifold flange is warped will need to be machined flat again. Mine was warped from driving it when a stud was broke off in the head. After I had it machined flat again I used a OEM gasket, which is a metal layer gasket, that I have re-used about 6 times now. Edited March 2, 2015 by NotStock88 Link to comment Share on other sites More sharing options...
ucw458 Posted March 2, 2015 Report Share Posted March 2, 2015 A thicker gasket would be a band aid at best. As stated above, the flanges must be flat. Also check for debris or rusty scale that needs to be cleaned off. That stuff will also cause sealing issues. Link to comment Share on other sites More sharing options...
vbrad511 Posted March 2, 2015 Report Share Posted March 2, 2015 Put a layer of silicone on each side of the gasket. And old drag racer clued me in to that many years ago when I had a set of leaky headers on an old Monza. I was blowing gaskets every other week until I siliconed them. Never again. Link to comment Share on other sites More sharing options...
Guest Posted March 3, 2015 Report Share Posted March 3, 2015 Remove the turbo hot side, and inspect the mating surfaces. Look for anything out of the ordinary. Check the studs and nuts to make sure it's all ok. Replace the gasket with a new one and tighten everything properly. Link to comment Share on other sites More sharing options...
TexasQuest Posted March 3, 2015 Report Share Posted March 3, 2015 Wouldn't hurt to spray some copper gasket sealant on the new gasket either. Link to comment Share on other sites More sharing options...
Malykaii Posted March 3, 2015 Report Share Posted March 3, 2015 If your talking about the bottom of the turbo to exhaust manifold... I personally used two gaskets there. (By accident, but it works well) Link to comment Share on other sites More sharing options...
Malykaii Posted March 3, 2015 Report Share Posted March 3, 2015 http://www.rockauto.com/catalog/moreinfo.php?pk=123513&cc=1208225&jnid=635&jpid=0 The square gasket to the right. Link to comment Share on other sites More sharing options...
techboy Posted March 5, 2015 Report Share Posted March 5, 2015 http://www.rockauto....jnid=635&jpid=0 The square gasket to the right. Why do I feel like the gasket I have on my car from the turbo to the manifold isn't paper ... I seem to remember mine being sheet metal (??) Link to comment Share on other sites More sharing options...
TexasQuest Posted March 5, 2015 Report Share Posted March 5, 2015 The Fel Pro kit is metal. Link to comment Share on other sites More sharing options...
twojayzeestarion Posted March 5, 2015 Report Share Posted March 5, 2015 I personally like the non metal composite one that shields the spark lugs best. Also just for giggles I had my black 87's manifold machined flat then put rvt on it and it seals up without a gasket at all. Haven't had one issue. Link to comment Share on other sites More sharing options...
TexasQuest Posted March 6, 2015 Report Share Posted March 6, 2015 RTV doesn't melt off? Link to comment Share on other sites More sharing options...
ls1rx7 Posted March 6, 2015 Report Share Posted March 6, 2015 High temp its temp rated for headers have seen it used many times with no trouble at all. Link to comment Share on other sites More sharing options...
techboy Posted March 6, 2015 Report Share Posted March 6, 2015 Just to be clear ... I think ppl in this thread are talking about 2 different gaskets. I think the OP is talking about the 4-hole turbo to manifold gasket from what he initially said. It seems like some are talking about the manifold to head gasket - which I agree - the manifold does need to be flat for perfect seal. Whichever gasket you are talking about Silver86 you got your answer either way. Link to comment Share on other sites More sharing options...
markhansenconquest Posted March 6, 2015 Report Share Posted March 6, 2015 I use the metal (oem) one on the head side and the felpro one behind it ....the 3 sheets of metal allow for expansion of the to different types of metal ALUM and CAST STEEL.. They expand at different rates and its also a heat sink for the head.......... Link to comment Share on other sites More sharing options...
ucw458 Posted March 7, 2015 Report Share Posted March 7, 2015 Red RTV works on some NA applications. Turbo engines have more exhaust heat and higher pressures. Red RTV just gets burned up. It can also hurt oxygen sensors if the RTV gets on it. If both flanges are flat then you don't need gimiky fixes. Link to comment Share on other sites More sharing options...
TexasQuest Posted March 7, 2015 Report Share Posted March 7, 2015 High temp copper rtv seems to be the way to go. Link to comment Share on other sites More sharing options...
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