The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: jamestnewsonr65 on August 17, 2014, 01:17:02 PM

Title: Loose exhaust coupling
Post by: jamestnewsonr65 on August 17, 2014, 01:17:02 PM

I bought some mufflers from here http://modernmotorcycle.co/collections/exhaust/products/muffler-reverse-cone-megaphone-shorty-black and they came with some reducer collars which I thought, great just put them on, clamp the, up and good to go. Wrong!

Even with the reducers which are supposed to take you down to 35mm they are a little loose and don't sit properly. Does anyone have and ideas on how to make them tighter fitting or indeed where to get a smaller fitting collar?

Thanks in advance.
James.

Title: Re: Loose exhaust coupling
Post by: Tony Smith on August 17, 2014, 06:25:03 PM

Something  like below?

http://www.ebay.com.au/itm/MOTORCYCLE-EXHAUST-PIPE-STAINLESS-STEEL-BANJO-CLAMP-CLIP-34MM-37MM-BAN3437-/331216358583?pt=AU_Motorcycle_Parts_Accessories&hash=item4d1e088cb7

I bought very similar clamps from a seller in Italy, p[aid a little more than these too.

Title: Re: Loose exhaust coupling
Post by: jamestnewsonr65 on August 18, 2014, 03:32:21 AM

It was more the internal reducers.
They just don't seem to squeeze together enough to hold the muffler tight.

Title: Re: Loose exhaust coupling
Post by: montmil on August 19, 2014, 03:53:57 PM

Cut some strips from brass shim stock. Roll 'em up inside those reducers. Should get you snugged up.

Title: Re: Loose exhaust coupling
Post by: jamestnewsonr65 on August 19, 2014, 05:06:02 PM

I thought that might've an option or cutting the reducers a bit so they close up a little tighter.

Shims are probably easier!

Title: Re: Loose exhaust coupling
Post by: Luca on August 20, 2014, 09:03:03 AM

Monte, brass shim stock?  This would be a great opportunity to re-use some spent beer cans!  [smiley=beer.gif]

Title: Re: Loose exhaust coupling
Post by: youngjohn on August 20, 2014, 12:27:53 PM

Try greasing between the reducing rings so that they slide over each other more easily. I had one of these a few years ago and that did the trick for me.

Title: Re: Loose exhaust coupling
Post by: montmil on August 20, 2014, 03:15:06 PM

Quote

Monte, brass shim stock?  This would be a great opportunity to re-use some spent beer cans!  [smiley=beer.gif]

Done that!
Plus, a 12-ouncer makes a great install tool for a final drive oil seal. Beer... It's not just what's for breakfast.

(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fi196.photobucket.com%2Falbums%2Faa1%2Fmontmil%2FBMW%2520Transmission%2FBMW%2520Final%2520Drive%2FOilSealProtection.jpg&hash=4b3496dc2de758d653d666e5fa3e7a7e3643bb2d) (http://s196.photobucket.com/user/montmil/media/BMW%20Transmission/BMW%20Final%20Drive/OilSealProtection.jpg.html)