exhaust leak!!!!!!!!

[Quadrider10]

i cant freakin stop the flange from leaking!!!!!!! its leaking between the flange and cylinder head. its leaking far less than it was when i first pput it on, but its still leaking!. i tried ev erything. between strighting the fllang cause it was bent, and putting a gasket on, but still leaks. should i just buy a new flange, grind the bottom down so its perfectally flat agenst the cylinder head or what???

 

[brandoz28]

I would get some high temp copper silicone and put it on there to see if that helps it out a bit.

 

[blasty 95]

Wb rtv heard slick did that with his power pros....

 

[Quadrider10]

like the flange is a little bent. should i grind it down to where its complety flat, and take the gasket off and try it, or leav the gasket on, where can i get the silicone? home depot?

 

[brandoz28]

parts store. you need the copper high temp stuff

 

[Quadrider10]

alright. i guess i will try to grind down the flange so its flat, take the gasket off, than just put that stuff on.

 

[brandoz28]

what exactly are you using for a gasket right now? the stock donut? or the other type that you were looking at?

 

[Quadrider10]

both....................................

 

[Quadrider10]

bumppppy...................

 

[brandoz28]

throw some RTV the flange and give it another go. try to get it as straight as possible though before putting it on

 

[Larry's Shee]

Without using a surface grinder you aren't going to get it real flat. Make sure all parts are free from oil, etc. apply silicon to both/all surfaces , assemble pieces, tighten to 90/95%, let cure/dry 24 hrs minimum, finish tightening nuts.

 

[bigwill]

Also, check to make sure that your not bottoming the nuts out on the studs. When I first did my aftermarket flange I had a small leak as well. I ended up using 2 washers per side so the nuts didn't bottom out, havet had a problem since.

 

[StrokedTater244]

Also, check to make sure that your not bottoming the nuts out on the studs. When I first did my aftermarket flange I had a small leak as well. I ended up using 2 washers per side so the nuts didn't bottom out, havet had a problem since.

good call! i have seen that a time or two.

 

[Quadrider10]

ok ill try that. i have an angle grinder btw. i tried to just bent it back with a rubber mallet and a vice and sh*t, but i was only able to get it so far. also, i cleaned bothe surfaces so well, i woould eat off them I:I lol. and as for bottoming out the nuts, i also have 2 wasers on there, so it wont bottom them out. otherwise it would.


thanks for the help. ima try this today! see how it goes I:I

 

[bigwill]

You need to heat that flange up so it will bend easier. Do you have any kind of heat source?

 

[Quadrider10]

i gots a blow torch

 

[Quadrider10]

but if u grind it, its only like 3 mm of difference at max probs less!

 

[Quadrider10]

so should i grind or bend?

 

[blowncash]

I had gasket material laying around here. So I took the flange off and traced it onto the material and cut it out. I then took some aluminum heat tape I had laying around and sandwiched the gasket I made between two pieces of that. I then cut that around my gasket. I then used the copper hi temp silicone sealer I got from and auto parts store and coated both sides of my gasket. I then assembeled it and let it sit for a day or two. I havent had any leaks since.It sounds a little involved but it really only took about 45 min start to finish. I was fortunate to be a pack rat and had some of the items laying around from other projects.

 

[Quadrider10]

yea. i tried a gasket, but no luck.