Exhaust repair - Speedmade

got2dv8

I've been talking to Speedmade about repairing my exhaust canister. I figured I'd post this since others may benefit. I'm in need of more advice.

Anyways, I just disassembled my carbon can which had a hole in it. I am happy with what I found as it looks to be easily repaired... that is if I can actually find a carbon sleeve in the size I need. My sleeve measures appoximately 94mm id and 1mm thick. I actually measured the part of the can which it slips over (which measures a tad over 93mm both ends.) The sleeve is 400mm long which is quite common. The closest sleeve I could find is for HRC in 96mm id. Do you (Speedmade or anyone) know of any other suppliers where I can get a 94mm? Also, I need some packing advice. The baffle had some steel wool wrapped around in and then the normal fiberglass packing. What do I need to use to repack?

If all else fails, could I use my damaged sleeve and then slide the 96mm sleeve over it?

Thanks,

Robert

ps. There is an aluminum sleeve that was on the end.. which is split and damaged. I'm not replacing it.. do I need to do anything to protect the carbon sleeve?

griff851

Stefan use to have sleeves. The tergminoni's I rebuilt had no outer sleeve of Al nor steel wool. I just pulled them apart and went to a shop that makes fire proof cabinats and brought fiber glass of them. Then wrapped the glass mat on as tight as I could, wrapped masking tape around it to hold it in place, and reassembled it.

Speedmade

@Grif,
The problem is that these are not Termi's. They have some odd size sleeve.

@Robert
I will pull some pics tonight. I usually wrap the center tube in a ceramic fabric, then I pack the can from one end very tightly with dense fiberglass wadding. I've never had a problem, but it's a bunch of work.
You may be able to repair the carbon sleeve, but then you really need to repack them well or it will just blow out again.

@everybody
Somebody must make the right size carbon sleeve for these cans.

got2dv8

If worse comes to worse I will try to repair the sleeve...since the damage is in the rear where you cannot see it. I have seen some carbon repair kits on Ebay which come with the carbon fiber and epoxy. Hopefully I can patch it.

Robert

sp2 boy

Robert, you maybe better of using High temperature epoxy resin. Send them a message to see if they can include that instead or additionally.

brad black

there's an english company that sells all sorts of carbon sleeves sizes, including termi. can't think of their name now.

http://www.pjengineering.co.uk/categories.php?cat=9 <- them.

got2dv8

Thanks. Reed had already turned me on to that supplier. Lot's of nice stuff, but unfortunately not the size I need. I've got nothing to lose by trying a repair myself.. since the sleeve is already toast. I'd like to repair inside and out. But inside would be a blind repair and I can barely get my hand inside.

Robert

Tony IOM

Some links for you!

Hi Robert

I found some tube suppliers that should be able to help;
http://www.carbonfibretubes.co.uk - they do a 93mm ID tube

http://www.customcom.co.uk/products.html - they do tubes up from 4mm to 250mm ID

And this company do a repair kit that seems pretty comprehensive for £30.59
http://http://www.carbonmods.co.uk/P...epair-kit.aspx

Good luck
Tony

got2dv8

repair made

Well, I ordered a repair kit and finished my repair. It was pretty easy considering I've no idea what I'm doing. The only trouble I had was the ends of the cloth where the cuts are made. I used tape and then made the cuts, however upon peeling the tape it caused the fibers to separate. That's well enough because the repairs are unseen when the exhaust is fitted. I used two layers inside and outside. I cut my pieces, mixed the resin/hardener 2:1, placed each piece on a plastic surface and applied the resin with a brush to one side then the other. Install, smooth out with my glove/brush repeat. I am contemplating re-clearing the sleeves. Just thinking of using polyurethane. I just hope I can keep the heat away from the carbon as I've removed some metal sleeves from the back half of the cans (it was deteriorating). Am I better off wrapping the baffle in steel wool prior to the fiberglass packing?

Robert

got2dv8

Well guess what? I had just repacked my carbon cans... and then, the other sleeve started burning a hole in it! 😯 I love the look and lack of weight of carbon but I was like "F&*k this !" So I threw my stock headers on with some modded SL or SPO high cans and went for a ride.

Now I'm like, "where is the power?" I thought I was riding my 900. I jumped on the highway and pinned the throttle to the stop. Ok? The bike won't even pull to redline in top gear... 🙁.

Fast forward a week. I really want a full 50mm system with carbon cans but I don't have 2 large. I'm pretty good at MacGyvering things so I looked around for a solution. I've got the original oem cans for the 851. The skinny ones. Hey, they might work. I pulled them apart (easier said than done...) and yanked off the sleeves. They measured just about 2mm larger than the carbon BOS sleeves. That equates to 1mm circumference. Ok, what about the holes for the mounts? What do you know? They are EXACT same as the Ducati oem cans. So I had a lot of holes to drill in both ends of the aluminum sleeve so I could mount it to the BOS end-cap/baffle and the link pipe. That was a bit tricky. I was able to get the holes close enough to get the rivets in and mated to the original holes in the BOS parts. Now for the gap. I figured 1mm all around wasn't that bad. I bought some black RTV rated at 500°f. Gooped in on and riveted away. Only time will tell.

Today I decided to go for a quick spin. I went for about 75 miles and pulled her up past 150 (allegedly).

When I got home, I let her cool down and checked the cans. Perfect! The RTV held. The cans were still attached to the bike and nothing fell off. 😎 I'd say that was a success. Still I may pull the sleeves off in the Winter and get them powder coated black.. as there are some scuffs.

In the end I just thought it was cool I was able to keep my 45/50mm full system with race cans and still retain a decent (oem) look.

Robert
ps. I added two photos at the end to show what the original carbon sleeves looked like...I still prefer those.