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#692501 - 04/20/17 2:38 pm Muffler fits loose over pipe  
Joined: Aug 2010
Posts: 588
Bola Offline
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Bola  Offline
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Posts: 588
Toronto, Canada
I'm on the final stages of a rebuild. 69 TR6R. When installing the mufflers to the pipes on both sides there is sufficient play to cause an air leak; even when the clamps are nipped down tightly. Both pipes and mufflers are stock, original components. Any suggestions how to enlarge the pipe area to fit snugly into the muffler/s? One millimetre should do it.

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#692505 - 04/20/17 3:19 pm Re: Muffler fits loose over pipe [Re: Bola]  
Joined: May 2013
Posts: 4,533
Allan Gill Offline
Allan Gill  Offline



Joined: May 2013
Posts: 4,533
Rotherham - S. Yorkshire
You can buy pipe expanders, I have a set and very handy, much easier to do if you haven't had the pipes chromed as the chromed pipe is a harder than the steel alone. But slide it in, and big spanner to spread the jaws. When I used to make pipes as part of my job I had a pneumatic version. So much easier and quicker.


beerchug
#692509 - 04/20/17 3:36 pm Re: Muffler fits loose over pipe [Re: Bola]  
Joined: Feb 2008
Posts: 4,049
Tridentman Online content
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New Jersey USA
Pipe expanders are used a lot in the car exhaust world.
You can buy cheap expanders at Harbor Freight or their Canadian equivalents.
HTH

#692512 - 04/20/17 4:29 pm Re: Muffler fits loose over pipe [Re: Tridentman]  
Joined: Feb 2006
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Ginge Offline
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Ginge  Offline
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Posts: 635
Qld, Aust and Otago,NZ
...or you could sleeve it with a strip of alloy cut from the side of a beer can.


Ginge
#692527 - 04/20/17 7:01 pm Re: Muffler fits loose over pipe [Re: Bola]  
Joined: Jul 2011
Posts: 122
fried okra Online content
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fried okra  Online Content
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Posts: 122
TN/VA/FL USA
The alloy strip from a beer can came to my mind too......but I hated to be the first to mention it smile

fried okra

#692533 - 04/20/17 7:23 pm Re: Muffler fits loose over pipe [Re: Bola]  
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desco Online content
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desco  Online Content
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Bishop, Calif.
Pabst Blue Ribbon makes the best shims.


1968 T120R
1972 T120RV
Any advice given is without a warranty expressed or implied.
#692541 - 04/20/17 7:50 pm Re: Muffler fits loose over pipe [Re: desco]  
Joined: Oct 2006
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Irish Swede Online content
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Irish Swede  Online Content
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Elburn, Ill. USA
...but the worst beer.

#692542 - 04/20/17 8:04 pm Re: Muffler fits loose over pipe [Re: Irish Swede]  
Joined: Mar 2006
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raf940 Offline
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raf940  Offline
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gastonia nc
I have rediscovered PBR a 12 pack longnecks is just $8 at local grocer ice cold they take me back to the teeny bopper daze late 60s when it was 50 cents a quart


1972 Triumph T120
1968 BSA A65
1968 MGB Roadster
1979 Chevrolet Camaro Berlinetta
1969 Honda Mini Trail
1939 farmall f30 tractor
2004 Honda Shadow Aero
1972 BSA Thunderbolt
1975 yamaha xs650b
1972 Norton commando project
#692564 - 04/20/17 11:15 pm Re: Muffler fits loose over pipe [Re: raf940]  
Joined: Oct 2006
Posts: 2,309
Irish Swede Online content
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Irish Swede  Online Content
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Elburn, Ill. USA
The good days....when you could still buy beer in quart bottles, drink the beer, and get money refunded for the bottle!

#692574 - 04/21/17 1:19 am Re: Muffler fits loose over pipe [Re: Irish Swede]  
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Ginge Offline
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Ginge  Offline
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Qld, Aust and Otago,NZ
Glass bottles don't shim as well as cans. Also the labels tend to cook and smoke once the exhaust gets some heat into it.

Seriously though, I've used the beer can method, it works and can be made to look tidy. I also found there was quite a difference between equivalent sized modern chrome metric clamps and the imperial sized clamps the suppliers here sell. The metric equivalents should fit in theory but the imperial clamps are a better bet. It seems a lot rides on that smidgen of an inch lost or gained in the metric/imperial crossover.


Ginge
#692591 - 04/21/17 7:33 am Re: Muffler fits loose over pipe [Re: Bola]  
Joined: Sep 2001
Posts: 352
tridentt150v Offline
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tridentt150v  Offline
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Great Southern Land
There is also a product called shim brass that you can buy in sheets [about the same size a sheet of sandpaper]. Comes in several thicknesses. Cut to size and fit.

#692607 - 04/21/17 11:50 am Re: Muffler fits loose over pipe [Re: Bola]  
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Tridentman Online content
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Tridentman  Online Content

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New Jersey USA
Shim stock from McMaster Carr.
HTH

#693226 - 04/27/17 5:39 pm Re: Muffler fits loose over pipe [Re: Tridentman]  
Joined: Aug 2010
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Bola Offline
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Bola  Offline
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Toronto, Canada
Got it sorted with a bit of soda can, thanks.


Moderated by  John Healy 


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