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General => The garage => Topic started by: scarr89 on 13 January 2012, 21:02

Title: Exhaust paste
Post by: scarr89 on 13 January 2012, 21:02: I think I heard something about exhaust paste used when joining exhaust pipes...Is this a must? If so do I just smear loads of it round the pipe end and shove it into the join?

Fitting a new DP tomorrow on my mk4...Thanks :smiley:
Title: Re: Exhaust paste
Post by: Chris. on 13 January 2012, 21:21: Usually you need it. Sometimes you get lucky and it doesnt blow but rare.

Like you said....cover it, let it dry for 20mins or so, then run engine at idle to finish it off....dont rev or it will just blow out.
Title: Re: Exhaust paste
Post by: Wayne on 13 January 2012, 23:54: Do not use it on the main joint, just use a little around where it connects to the front pipe.
Title: Re: Exhaust paste
Post by: jonrandom on 14 January 2012, 11:05: So if im using a gasket would I still need the paste as well?
Title: Re: Exhaust paste
Post by: VW BUSH on 14 January 2012, 14:45: Should not use it in front of the cat, but I think this more to with excess paste getting down into the monolith or on the sensors. :smiley:
Title: Re: Exhaust paste
Post by: scarr89 on 14 January 2012, 16:11: I just 'threw' my decat pipe in, used it where it connects to the rest of the exhaust (150PD BTW), left it for 20+ minutes with engine off, and just switched engine off after 20 or so minutes with engine at idle, should this of 'set' it? Will the cold outside temp affect it? Cheers
Title: Re: Exhaust paste
Post by: Chris. on 14 January 2012, 16:12: It goes off fairly quick mate!
Title: Re: Exhaust paste
Post by: scarr89 on 14 January 2012, 16:42: Quote from: Chris. on 14 January 2012, 16:12
It goes off fairly quick mate!

Cheers mate, I'll take it for a lickle spin in a bit :evil:
Title: Re: Exhaust paste
Post by: Wayne on 14 January 2012, 21:31: Quote from: VW BUSH on 14 January 2012, 14:45
Should not use it in front of the cat, but I think this more to with excess paste getting down into the monolith or on the sensors. :smiley:

Correct plus exhaust paste does not like excessive heat.
Title: Re: Exhaust paste
Post by: Screech16v on 14 January 2012, 22:02: Ive used wurth RTV super slicone before as a substitute for the paste (had none) with great results good for 260 degrees so ok for the last half.