prawnabie
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| posted on 2/6/10 at 07:18 PM |
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Repacking a welded up exhaust...
Hi Guys
My exhaust is getting louder and louder so I am thinking of repacking it with accousti-fil. The only problem is it is a caterham jobbie that is welded
around the edge like this one..
Can I just grind the weld off and open it up or are sealed ones pretty much sealed up for life?
Also if I can open it, can I just rivet around the flange with a few blobs of weld to seal it back up or is there a proper sealant I can buy?
Thanks
Shaun
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snapper
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| posted on 2/6/10 at 07:23 PM |
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Standard silicone sealer will seal it.
Some just cut a large rectangle at the back where itdoes not show then silcone seal and rivet a slightly larger sheet of stainless back on
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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bi22le
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| posted on 2/6/10 at 08:11 PM |
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what any silcone sealent?
Can it be used to plug any little gaps prior to the silencer? I have a little gap on the join from down pipe to silencer.
[Edited on 2/6/10 by bi22le]
Track days ARE the best thing since sliced bread, until I get a supercharger that is!
Please read my ring story:
http://www.locostbuilders.co.uk/forum/13/viewthread.php?tid=139152&page=1
Me doing a sub 56sec lap around Brands Indy. I need a geo set up! http://www.youtube.com/watch?v=EHksfvIGB3I
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dhutch
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| posted on 2/6/10 at 08:43 PM |
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quote:
Originally posted by bi22le
what any silcone sealent?
Pretty much, just make sure its not acyclic!
You can get high temp silicon (rated to 300c) but std bathroom stuff does about as well and it a faction of the price. Used it with a thick walled
bean can to repair the tintops exhaust after total failure of a weld in the middle of the center section which went on to pass on just the next mot,
but with an advisory, the one after that too!
Still somewhat flexible 15k later when i bit the £18 bullet and bought a new center section!
Its also common practice to the use the 300c silicon to seal self-supporting flue pipes on narrowboats, both together and to the stove top.
Daniel
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Canada EH!
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| posted on 2/6/10 at 08:44 PM |
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The dots on the ends of the can appear to be spotwelds. Drill them out, knock the ends off, repack and rivet back together using the spotweld holes.
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