02-01-2015, 07:46 AM
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CC Member
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Join Date: Apr 2007
Cobra Make, Engine: # 757 ERA 427 SC , 482 Al. big block
Posts: 896
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Not Ranked
Dan .. if it`s an exhaust leak , use copper hi temp Permatex sealant on the primary tube mounting flanges . Did that on all my dirt cars and also my ERA and never a leak . I`ve got almost 5 years now on the ERA flanges with zero leaks .
Leak may also be where the primaries connect to the muffler/collector . Do the same thing . Coat the OD of the primary pipes with sealant ( Wurth is excellent ... OEM for Mercedes , Audi etc ) and then assemble . Also acts as an assembly lubricant .
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