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Author Topic: Re-packed my exhaust  (Read 596 times)

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Offline alanB

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Re-packed my exhaust
« on: July 29, 2013, 07:35:15 am »
I noticed a while ago that the rivets holding the stainless steel insert into the back of the silencer were quite loose.

This got steadily worse till it all became quite wonky and exhaust gas was clearly blowing out the back as well. 

I finally got around to doing something about it this weekend.  (But didnt take any photo's, was too absorbed getting it all done).

I drilled out the rivets and pulled it all apart.

I had left it a bit late, because the rivets had worn the holes quite a bit, one of the holes had actually pulled through the edge of the aluminium.

Also the exhaust packing had basically disappeared! There was some left but not very much.

I hummed and haa'ed about what to do about the elongated holes.  Blazes suggested cutting the edge of the aluminium housing back and drilling new holes.  At first I thought that was a great idea, but realised that it would mean that the clamp on the exhaust would have to move about 10mm, which wasn't a train smash, but it would mean that the clamp overlap would diminish accordingly.  So I wanted to try avoid that.

In the end I just decided to use high temp silcon gasket sealer as well as drill a few extra holes for rivets and use the existing holes as well.  I'm hoping the combination of extra rivets and adhesive of the silcon would hold it all firm. 

So I repacked the exhaust and gave it all a good sanding and polish so now its all back on the bike.

I also took the opportunity to check the clicks on the cam chain.  I'm currently on 7 clicks - at about 15000k's.  :thumleft:
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Offline Réhann

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Re: Re-packed my exhaust
« Reply #1 on: July 29, 2013, 08:20:02 am »
What pipe was it?
 

Offline sidetrack

Re: Re-packed my exhaust
« Reply #2 on: July 29, 2013, 09:15:13 am »
What pipe was it?
Stock pipe ? We removed the cat on mine which made a big difference but will be going LV soon. Same thing happened on mine, one of the rivets have worked itself loose and gas is escaping before entering the silencer.
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Offline alanB

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Re: Re-packed my exhaust
« Reply #3 on: July 29, 2013, 12:14:34 pm »
What pipe was it?

The standard pipe that had been de-catted by Blazes.

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Offline BiG DoM

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Re: Re-packed my exhaust
« Reply #4 on: July 30, 2013, 02:19:12 am »
I am sure it will hold with the silicone and extra rivets. I think quite a bit of vibration is transmitted to the exhaust. The OEM exhaust is actually a lovely piece of work - I was impressed when I decatted mine and just love the H logo outlet as a typical Italian touch.
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Offline Straatkat

Re: Re-packed my exhaust
« Reply #5 on: August 22, 2013, 09:53:14 am »
Hi Guys
My exhaust silencer also "came loose" at the front recently, probably due to the bolt holding the subframe on vibrating out on that side, so I  spent some time doing upgrades and fixing stuff like the rear subframe, (now stainless) and strengthening the ally frame and battery tray, but I digress, the silencer was de-catted and I shortened it as well, and the 4 stroke packing was almost completely blown out...so I repacked it with potscourers, the coarse ones, just rammed them in and riveted the endcap back on with S/S pop rivets....and it sounds great!
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Offline BiG DoM

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Re: Re-packed my exhaust
« Reply #6 on: August 22, 2013, 11:06:54 am »
Hi Guys
My exhaust silencer also "came loose" at the front recently, probably due to the bolt holding the subframe on vibrating out on that side, so I  spent some time doing upgrades and fixing stuff like the rear subframe, (now stainless) and strengthening the ally frame and battery tray, but I digress, the silencer was de-catted and I shortened it as well, and the 4 stroke packing was almost completely blown out...so I repacked it with potscourers, the coarse ones, just rammed them in and riveted the endcap back on with S/S pop rivets....and it sounds great!

Hey StraatKat - I see this is your first post! Welcome to Wild Dogs and welcome from the Husky Moderator.  :ricky: (also a good idea to go to the New Member thread and introduce yourself to the WD pack ... also for the Husky kennel interest ... what bike do you have, year, model  etc)  :thumleft:

For noting - stainless steel is not necessarily stronger than alu for a subframe as it is often weakened where welded and does not like to be put under stress and vibration (not to say it will not last - especially if properly gusseted which is the trick with these subframe mods).
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Offline Straatkat

Re: Re-packed my exhaust
« Reply #7 on: August 27, 2013, 08:23:44 pm »
Big D, the stainless fender bracket is 3mm plate, bent and welded, quite a lot heavier than the flimsy stock ally thingy, but I also gusseted the subframe under the 2 arms, so that is also a lot stronger, my battery box also cracked, so that got the treatment as well. Loctite on all the bolts so I don't lose them again. But what I wanted to share was the exhaust packing with pot scourers and how well that works. Riveted the shortened stock exhaust can with S/S rivets as well.
Will see how the s/s fender bracket holds up, but suspect it will do better than what I had!
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Offline BiG DoM

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Re: Re-packed my exhaust
« Reply #8 on: August 28, 2013, 09:09:17 am »
Big D, the stainless fender bracket is 3mm plate, bent and welded, quite a lot heavier than the flimsy stock ally thingy, but I also gusseted the subframe under the 2 arms, so that is also a lot stronger, my battery box also cracked, so that got the treatment as well. Loctite on all the bolts so I don't lose them again. But what I wanted to share was the exhaust packing with pot scourers and how well that works. Riveted the shortened stock exhaust can with S/S rivets as well.
Will see how the s/s fender bracket holds up, but suspect it will do better than what I had!

All sounds good and I am sure it will hold up. I like the pot scourer suggestion - I did the decat and shortened mine as well but got some other zorst matting I used but will use them if I ever need to repack it again.  :thumleft:
"Love is the feeling you get when you like something as much as your motorcycle" - Hunter S. Thompson

Scoots: BMW HP2  Husky 701R  Husky  TE610E  BMW G450X  KTM 250XCW  Yamaha YZ250X BMW R100S YAMAHA BWS 

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