Hi all,

 

Just wondering if someone can give me some advice regarding fitting a new S3 titanium exhaust to my Rev3. I have literally just done the install and thought everything had gone to plan.

 

I removed the old front pipe without issue, ordered a new exhaust gasket for the front end of the Ti pipe, ordered two new O-Rings for the centre-box end (all from Lampkins).

 

I cleaned everything up and installed the new O-Rings, inserted the pipe to the centre-box, added the gasket and torqued everything up.

 

 

When I started the bike up, it was evident that the exhaust was blowing at the centre-box section where the S3 exhaust feeds in. On closer inspection it was obvious that the fit of the pipe was not as close as that of the original pipe. When i put the vernier calipers across both pipes I could see that the Ti pipe is approx 0.5mm down on diameter relative to the original.

 

Has anyone else come across this? Am i missing something obvious? I cant imagine that just adding a load of gum type sealer will fix it. I'm starting to think i need to source different sized O-Rings to suit but what is everyone else doing? I select O-Rings daily in my job but i cant see why i should need to do this?

 

New standard ORings installed to centre-box

 

Centre-box section removed

 

Any help much appreciated!

 

Regards,

Stew

High temp silicone will do it,sounds like a bodge but they don't always seal without

High temperature silicone is they way buddy, I take it the orings are the correct fitting?

Plenty of silicone and the job will be a good un

Ok, thanks for the responses. Found some flexibile Loctite at Halfords good for 350 degC, I'll give that a try!

..might be a reason for it eg expansion of titanium vs steel. ...not sure..you could ask S3 for an explanation.

Silicone does work most of the time, Or this is a handy tool to expand it and good for reachable dents. I don't think people normally spend that much on rev 3's anymore so you might find only a few have the s3 pipes.

 

http://www.ebay.co.uk/itm/like/272003959542?adgroupid=13585920426&hlpht=true&hlpv=2&rlsatarget=aud-133395220626%3Apla-131843259666&adtype=pla&ff3=1&lpid=122&poi=&ul_noapp=true&limghlpsr=true&ff19=0&device=c&chn=ps&campaignid=207297426&crdt=0&ff12=67&ff11=ICEP3.0.0-L&ff14=122&viphx=1&ops=true&ff13=80

actually now that I think of it, I recall seeing an advertisement years ago for these S3 pipes and I noticed the Rev3 had a sleeve there. ..let me see if I can find that pic

that's straight out of the S3 Catalogue. Is yours the same?

Well it looks the same, all I can compare to is the pic I posted at the top. The dia is around 0.5 to 0.7 undersized compared to original (after measuring a few more times). I can't see that giving you enough annular thickness for a sleeve? The 125 version definitely has an adaptor/compression part. I bought from Gas Gas so I assumed it would all be there?

Silicone does work most of the time, Or this is a handy tool to expand it and good for reachable dents. I don't think people normally spend that much on rev 3's anymore so you might find only a few have the s3 pipes.

http://www.ebay.co.uk/itm/like/272003959542?adgroupid=13585920426&hlpht=true&hlpv=2&rlsatarget=aud-133395220626%3Apla-131843259666&adtype=pla&ff3=1&lpid=122&poi=&ul_noapp=true&limghlpsr=true&ff19=0&device=c&chn=ps&campaignid=207297426&crdt=0&ff12=67&ff11=ICEP3.0.0-L&ff14=122&viphx=1&ops=true&ff13=80

This looks a good idea as I'm not far away in dia if the silicon doesn't work

So apparently the S3 pipe needs different orings according to my local trials dealer. Not sure why S3/gasgas do not supply this with the pipe. Pretty ***** if that is the case hmmm

good..get em

Thanks to all. Sorted now with high temp silicone and S3 specific orings that are not listed anywhere - pretty **** tbh, but a big thanks to BVM for sourcing them!

https://www.dropbox.com/s/d17lix5c27ib6q1/_20151230_214105.JPG?dl=0