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Carbon Fiber Exhaust repair

oaklandish

oaklandish

Lion of Judah
Joined
Apr 22, 2011
Location
The Town
Moto(s)
3
Name
Rowan
BARF perks
AMA #: 2912175
yoshsocf14grom.jpg

I believe this is a RS3 can and has a similar hanger to the one above in the sense that it rivets directly into the can


The bike went down and landed on the exhaust side causing the hanger to rip a hole in the can
(riveted hanger was completely removed)
IMG_5620.jpg


The packing looks a lot worse than it is. I've repacked a few cans and this one looked fine to me to I didn't bother repacking. I laid down the first layer of CF and applied a very thin layer of resin and let that dry. I didn't use a lot of resin at first because I wanted to make a base to build on and didn't want any to seep into the packing.
IMG_4255.jpg


When the resin dries the CF becomes extremely firm and it's hard to grind down the edges so using a disposable brush to apply to resin helps. Mixing the resin can also be a PITA because it's by weight not volume so good luck with that..
Second layer of resin
IMG_3934.jpg


Second layer of CF and more resin
IMG_1642.jpg


I ended up having to buy an exhaust pipe hanger kit from O'reily's for $5. I doubled up on the weak metal (I've had those rip off on other bikes) and sound's good as new with no leaks
 
next time providing some support from the inside will minimize that depression that shows on the last pic. you'll have to take the pipe apart to do it. aluminum foil won't stick, that can be your first layer. after that maybe some reasonably rigid paper product, i like manilla folders for patterns and such..

packing tape doesn't readily stick to resins either and can make a good peel ply.
 
gixxerjeff said:
Do you have any pictures of after you fixed it?
Click to expand...
almost all of these pics are after it's finished

auntiebling said:
next time providing some support from the inside will minimize that depression that shows on the last pic. you'll have to take the pipe apart to do it. aluminum foil won't stick, that can be your first layer. after that maybe some reasonably rigid paper product, i like manilla folders for patterns and such..

packing tape doesn't readily stick to resins either and can make a good peel ply.
Click to expand...
I don't care the depression. the main focus was to fix the leak, I don't care what it looks like and it's not noticeable when mounted anyway..

alcoHK said:
nice job brotha :thumbup, likin the inside of the shed shots :laughing
Click to expand...
thanks for the rare barf optimism

Loki1000R said:
beats buying a new one:thumbup
Click to expand...
indeed, I got the pipe for $30 before it got messed up

squidworth said:
you know you can get just the sleeves from yoshimura, right? :)
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I'm sure you can but I got the CF and resin for free... beats buying a new sleeve and waiting for it to be delivered...
 
I know its all finished now but sanding and cleaning the surface with alcohol will get you better adhesion (although it might not need it in this application).
 
jimboFosho said:
I know its all finished now but sanding and cleaning the surface with alcohol will get you better adhesion (although it might not need it in this application).
Click to expand...

you're right, I hand sanded the whole area and cleaned with water
 
Wow! It's not every day you get to see a masterpiece like this. Thanks for the share.
 
I like how people are crapping on the cosmetics of the $30 pipe that the OP fixed for free (minus a few hours labor). Awesome work OP on making a semi-broken park work again for next to nothing. Sure beats spending a few hundred on a new pipe!

Maybe now that you saved the money you can spend it on some white leathers and repeatedly post pictures of yourself in said leathers.
 
ndirienzo said:
I like how people are crapping on the cosmetics of the $30 pipe that the OP fixed for free (minus a few hours labor). Awesome work OP on making a semi-broken park work again for next to nothing. Sure beats spending a few hundred on a new pipe!
Click to expand...

+1 :thumbup
 
i think people wanna see a pic of the pipe side of the bike, as it sits today. the pics you posted are like right after a girl gets a boob job with the stitches still in there. people want the final, business as usual, shabang. not frankentits
 
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