surda Posted June 23, 2016 Share Posted June 23, 2016 Hi guys,so today, I wanted to take off the exhaust. As I failed, because it wouldn't come off, I wanted to put the screws back in place. As I tightenone of the screws, a little crack appeared (see attached photo). Should I be worried about it? What can I do to repair it?I would like to exchange the downpipe for a new one, but I am scared now, that whatever I do to it, its gonna make it even worse.Thanks for all responses Quote Link to comment Share on other sites More sharing options...
Tiggie Posted June 23, 2016 Share Posted June 23, 2016 I wouldn't worry too much but its probably best to leave the downpipe on now before it gets messed up any further I would buy some hi temp metal expoxy and try and fill the crack with that. Or take it to a garage for a weld if you are really concerned Quote Link to comment Share on other sites More sharing options...
Guest Posted June 23, 2016 Share Posted June 23, 2016 Done many a repair to engine cases and sections and all have been successful with JB weld. This is the best you'll get as it maintains a heat threshold well above what others can offer and also is one of the strongest as well at nearly 4000psi when fully cured.Mix it up, put it on when cold and leave it for 24hrs. Sand down after that if you wish. Quote Link to comment Share on other sites More sharing options...
Tiggie Posted June 23, 2016 Share Posted June 23, 2016 Phil:JB Weld is what I would of recommended but I couldn't remember its name and couldnt be arsed googling Quote Link to comment Share on other sites More sharing options...
Guest Posted June 23, 2016 Share Posted June 23, 2016 A quick tig weld and helicoil it, fairly straight forward for any tigwelder Quote Link to comment Share on other sites More sharing options...
Guest Posted June 24, 2016 Share Posted June 24, 2016 A quick tig weld and helicoil it, fairly straight forward for any tigwelderCast allu isn't the easiest to work on and anyone in their right mind would want the engine completely drained and dismounted from the bike before working on it...Go with the JB weld. Quote Link to comment Share on other sites More sharing options...
surda Posted June 24, 2016 Author Share Posted June 24, 2016 Thank you very much guys, I am gonna go with the JB weld and we will see what happens Cheers Quote Link to comment Share on other sites More sharing options...
Guest Posted June 24, 2016 Share Posted June 24, 2016 A quick tig weld and helicoil it, fairly straight forward for any tigwelderCast allu isn't the easiest to work on and anyone in their right mind would want the engine completely drained and dismounted from the bike before working on it...Go with the JB weld.Diecast alloy is the sh!te stuff Quote Link to comment Share on other sites More sharing options...
Rik398 Posted July 15, 2016 Share Posted July 15, 2016 Jb weld, or you can also buy aluminium brazing rods, looked into them a while back but never went for them. Quote Link to comment Share on other sites More sharing options...
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