WannabeWrxOwner Posted March 26, 2006 Share Posted March 26, 2006 Hey guy's, I'm replacing the headgaskets on my 98' GT. Do you guy's have any tips for me? Should I use sealant with the headgaskets? Or just use plain gaskets? Any tips would be great. Thanks Link to comment Share on other sites More sharing options...
nipper Posted March 26, 2006 Share Posted March 26, 2006 NEVER NEVER NEVER use sealnt on a headgasket. This has been covered on previous posts. The decks of the Cylinder and Cylinder head haave to be completley clean. The Cyl Head surface has to be Flat (which requires a machine shop check as most people dont have the micrometers to check this) with no runout. The Headgasket deforms a bit to make the seal. You have combustion pressures of 15-18,000 psi and coolant pressure of ~14psi. Any dirt and the two of them will find a path to leak. You also have engine oil under pressure. There is also a specific sequance to tightening the Cyl Heads bolt that you need to follow as the manual states. nipper Link to comment Share on other sites More sharing options...
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