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 Post subject: Re: exhaust repacking
PostPosted: 27 Jun 2022 06:50 
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Joined: 07 Nov 2011 18:10
Posts: 4061
Current ride: Buell ulysses
Location: Telford
mine is about 15-20 years old can’t remember the make but just had a look on ebay for swivel head pop rivet gun and found lots listed see pic for type of gun used and still take a bit of effort to get them stainless steel ones to pop :yup:


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 Post subject: Re: exhaust repacking
PostPosted: 27 Jun 2022 08:54 
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Joined: 07 May 2009 11:53
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Current ride: BMW F900 XR
Location: Leeds
Great Job Barney :yup:
Yes, my pop riveter similar to above. Helps to have large hands.

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 Post subject: Re: exhaust repacking
PostPosted: 27 Jun 2022 09:32 
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Joined: 01 Aug 2018 19:58
Posts: 1718
Current ride: Buell 1125R
Thanks Barney, Delw.
Yeah that's the type I have, but not a swivel head, it's probably just be an awkward angle or strength thing for me & having to use both hands. I'll get a swivel head one which may make the angle a bit easier.
Thanks again.

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 Post subject: Re: exhaust repacking
PostPosted: 27 Jun 2022 11:24 
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Joined: 01 Aug 2018 19:58
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Current ride: Buell 1125R
Bought this as it looks like I can stand over it and use both hands, should make it easier with stainless rivets hopefully.
https://www.ebay.co.uk/itm/223526595911

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 Post subject: Re: exhaust repacking
PostPosted: 27 Jun 2022 21:33 
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Current ride: Buell ulysses
Location: Telford
delw wrote:
Great Job Barney :yup:
Yes, my pop riveter similar to above. Helps to have large hands.

:yt:
Jazzbutcher wrote:
Bought this as it looks like I can stand over it and use both hands, should make it easier with stainless rivets hopefully.
https://www.ebay.co.uk/itm/223526595911

just don't get you nuts caught between the handles when the pop rivet goes pop :o

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 Post subject: Re: exhaust repacking
PostPosted: 27 Jun 2022 22:48 
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Joined: 06 May 2009 17:10
Posts: 2484
Current ride: 99 Cyclone M2
Location: Liverpool
delw wrote:
Great Job Barney :yup:
Yes, my pop riveter similar to above. Helps to have large hands.


You certainly don't want " A woman's hand m'lord "
:hehe:

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 Post subject: Re: exhaust repacking
PostPosted: 27 Jun 2022 23:21 
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Joined: 05 May 2009 20:00
Posts: 10869
Current ride: X1 2001
Location: southampton
gusm2 wrote:
delw wrote:
Great Job Barney :yup:
Yes, my pop riveter similar to above. Helps to have large hands.


You certainly don't want " A woman's hand m'lord "
:hehe:


:rotfl:

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 Post subject: Re: exhaust repacking
PostPosted: 11 Jul 2022 15:56 
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Joined: 01 Aug 2018 19:58
Posts: 1718
Current ride: Buell 1125R
1125r Torque hammer exhaust striped & repacked.

I wondered why this exhaust was so bloody loud, it was absolutely packed to gills with wadding and acting like a straight through. There just isn't any point in having a perf tube if the gas just travels along it without being disturbed, it might as well be a straight through pipe. No complaints about build quality, just built to last rather than being repacked which I guess suits most people. Gave it some breathing space which should quieten the FFFer down a bit see pics.


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 Post subject: Re: exhaust repacking
PostPosted: 11 Jul 2022 16:00 
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Current ride: Buell 1125R
Bloody pop rivets are the wrong size. Unfortunately I couldn't tell till the old ones were out which is gonna slow the test down a bit.

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 Post subject: Re: exhaust repacking
PostPosted: 11 Jul 2022 17:21 
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Current ride: Buell 1125R
Put some alloy ones in & polished them, runs fine, still noisy on tick over & setting off but not when I'm going faster. It has a nice deep & rich note that is easier on my ears, also smoother pull through the gears which all works fine for me. Was it worth doing? Yes.

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 Post subject: Re: exhaust repacking
PostPosted: 11 Jul 2022 18:41 
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Current ride: X1 2001
Location: southampton
If I remember correctly the Accoustafil expands a small amount when hot :?:

the acoustic science escapes me :old:
something along the lines of the sound waves resonate outwards from the gas path which is as straight as possible ...

I suspect a grown up will pop along in a minute & explain it better :mrgreen:

looks like it worked though Paul :sun: :yup:

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 Post subject: Re: exhaust repacking
PostPosted: 19 Jul 2022 23:36 
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Current ride: Buell 1125R
that silencer I did the other day, blew the wadding to shit after two 40 mile runs ha ha. Sounded twice as bad half way through the second run.
Rebuilt it again but tried to do right this time, (stuffed to the gills). Hopefully get out on the bike tomorrow to test and well see.
Good experience though & the new size stainless pop rivets arrived so looks tidier, (stainless lining for me.)
The silencer had done probably 6/7 thousand between bikes hence all the filler was caked & burnt & not really baffling.
Should work this time :shut:

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 Post subject: Re: exhaust repacking
PostPosted: 20 Jul 2022 07:34 
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Current ride: Buell ulysses
Location: Telford
I used Demon tweeks online guide as to how much packing was required to give enough room for correct expansion . as too much packing can be same as not enough and result in a noisey can .

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 Post subject: Re: exhaust repacking
PostPosted: 20 Jul 2022 09:22 
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Joined: 01 Aug 2018 19:58
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Current ride: Buell 1125R
barney wrote:
I used Demon tweeks online guide as to how much packing was required to give enough room for correct expansion . as too much packing can be same as not enough and result in a noisey can .


Honestly Barney, this can was absolutely stuffed solid, so I've done that again & added some 304 fine mesh round the perf tube to stop it blowing the crap out of the wadding so quickly. It's how it was built originally so here's hoping. No doubt I'll find out later. Thanks for the input though. Paul.

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 Post subject: Re: exhaust repacking
PostPosted: 23 Jul 2022 11:50 
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Joined: 01 Aug 2018 19:58
Posts: 1718
Current ride: Buell 1125R
Seems to have worked ok.
Bike has just gone through it's MOT this morning, I asked the guys if I needed the DB killer in, he just shook his head, they're pretty lenient with exhausts but not much else which is great.
Time will tell I guess but for the moment sounds nice & performs well.

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