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General Category >> Rubber Side Down! >> Loose inner exhaust ?
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Message started by zipidachimp on 06/21/18 at 19:22:39

Title: Loose inner exhaust ?
Post by zipidachimp on 06/21/18 at 19:22:39

Something sounded buzzy today, so at the end of my ride, I could only find a 'twangy' sound on tapping the exhaust. Too hot to check now, but is this common, or likely?
cheers 8-)

Title: Re: Loose inner exhaust ?
Post by batman on 06/21/18 at 20:22:26

OK, I'll bite . What's a twang? A buzzing coming from the exhaust ,I'd be looking at the heat shield at the front of the muffler first. Then the muffler mounting bolts.

Title: Re: Loose inner exhaust ?
Post by zipidachimp on 06/21/18 at 21:19:51

tapped it with a rubber hammer and it sounded 'twangy'. While riding, something sounds loose, like a sheet metal piece. I may have to take it off tomorrow to check. cheers! 8-)
ps: everything else is tight.

Title: Re: Loose inner exhaust ?
Post by Dave on 06/22/18 at 03:50:02

There have been other forum members who have had the inside of their muffler come apart.

This could be your sign that you need a DYNA muffler! ;) (And....some DYNA mufflers have come apart after many miles).

Title: Re: Loose inner exhaust ?
Post by zipidachimp on 06/22/18 at 19:26:58

Dyna done a year ago, the ex manifold has 'twang'.
Also, I apparently have lost a fibre washer from the sprocket cover, as it is also 'twangy'. Further investigation warranted! cheers! 8-)

Title: Re: Loose inner exhaust ?
Post by justin_o_guy2 on 06/25/18 at 08:53:29

A Twang is a musical term.
Like
Twang Twang
Ohhh Baybee
If it's buzzing inside the header you should be able to find it cold.
Stethoscope and soft face hammer.

Title: Re: Loose inner exhaust ?
Post by Serowbot on 06/25/18 at 15:26:12

At 42k miles I've burned out two Harley mufflers so far... I seem to get about 20k out of them...
No rust here,... must be the hellacious temps... :-?

Title: Re: Loose inner exhaust ?
Post by justin_o_guy2 on 06/25/18 at 22:20:40

Lost a inner header pipe?

Title: Re: Loose inner exhaust ? SOLVED!
Post by zipidachimp on 06/26/18 at 00:33:18

Found the 'twang' came from the sprocket cover missing a rubber O ring/ gasket on one of the three bolts. Exhaust OK ! 8-)