normal to develop leaks at header after new gasket?

[Foxfan88]

hey i have this small exhaust leak. can sometimes they leak or something, like a bolt backed off or something.

I hope the gasket didnt blow out, its a gasket from a federal mogul rebuild kit.
i have been running the new headers for about a week. ( not new, used but new to me.)

i dont have time to look today, i got prom later and cant get dirty

 

[Euphoric306]

think about it.... new gasket = gastket supposed to fail?


no dude, you did something wrong or the gasket was crap.

 

[Roland69]

probly just a few loose header bolts try cranking then up again they are known to loosen off aren't they.

 

[8950HO]

Yeah,it`s always worth retightning header bolts after running it.More like mandatory,just like the lower intake.

 

[Roland69]

That's what I've always been told. Didn't know that about the lower intake though thanks for sharring that.

 

[bill302]

ensure all header bolts are tightened to 13-16 ft lbs if leak still exists and you know its coming from the header to block gasket replace it with a good quality gasket....

 

[8950HO]

That's what I've always been told. Didn't know that about the lower intake though thanks for sharring that.

It`s true,I had to retorque my lower intake 3 times before it stopped seeping coolant at the front headports.Each time you put the torque wrench on the bolts tighten down a little more...to where you tightened them down the last time.
Guess the gasket compresses.

That TMoss intake porting guy can verify this also.

 

[Roland69]

I believe it