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[tommyo]

Have a strange sound with my Rinehart True Duels. Have a air leak noise... not at the head pipe... but at the end of exhaust. Sounds funny I know because all air goes out the end. The noise is kinda an air leak noise or a bird chirp type noise from the end caps. Could the noise be coming from the end caps? The end caps have been changed to the chrome ones. Looks like a little blow by at times but not enough that I thought I had to worry about. Any info would be great. Noise happens at cruising speed about 45- 55 mph and under min. load.

[hd-dude]

Loose baffels [smiley=nixweiss.gif] Are the end caps tight to the pipe [smiley=nixweiss.gif]

[MObe]

  That is exactly the reason that I got rid of mine. I changed baffles, end caps, siliconed the head pipe to muffler junction, nothing worked. It was a worse on concrete highways and when going across a bridge as somehow this amplified the "chirp".
  I always wear earplugs when I ride, maybe that filtered out everything but the "chirp" frequency.
  All I know is it drove me crazy and I couldn't get it to stop until I changed pipes.

[tommyo]

MObe,

That is exactly the same chit I have! Where is the noise coming from?

[MObe]

tommyo,  as far as I can tell it has to do with the shape of the perforations within the baffle system. I even tried wrapping my baffles in fiberglas but that didn't help either. I have a Kawasaki KLR 650 and they are known to have a chirpy exhaust as they age. The fix on them is to take a cold chisel and split open the baffle seam inside the muffler, that fixes the chirp on that bike. I never did resort to that on the rineharts. I just sold them on e-bay and put on a set of vance and hines true dual headpipes with supertrapp IDS mufflers. No more chirp and I can tune the loudness exactly where I want it.

[EZRIDN]

tommyo,  as far as I can tell it has to do with the [highlight]shape of the perforations within the baffle system.[/highlight] I even tried wrapping my baffles in fiberglas but that didn't help either. I have a Kawasaki KLR 650 and they are known to have a chirpy exhaust as they age. The fix on them is to take a cold chisel and split open the baffle seam inside the muffler, that fixes the chirp on that bike. I never did resort to that on the rineharts. I just sold them on e-bay and put on a set of vance and hines true dual headpipes with supertrapp IDS mufflers. No more chirp and I can tune the loudness exactly where I want it.

I'm curious to know if this pertains to the earlier Rineharts?  I heard that the new version has an improved baffle...maybe to correct that particular situation?  Maybe a swap out on baffles could be the answer?

MObe, did you notice any performance changes (good/bad) by going to your new exhaust combination?   Anything change in the miles per gallon area?

[MObe]

 I really can't say since I changed to TW37g gear drive cams and cometic 030 headgaskets at the same time. I can say with the combination that I have now that I have 101 lb/ft of torque at 2000 rpm. The guy that dyno tuned it called it a torque monster.

[Gettinold]

Have a strange sound with my Rinehart True Duels. Have a air leak noise... not at the head pipe... but at the end of exhaust. Sounds funny I know because all air goes out the end. The noise is kinda an air leak noise or a bird chirp type noise from the end caps. Could the noise be coming from the end caps? The end caps have been changed to the chrome ones. Looks like a little blow by at times but not enough that I thought I had to worry about. Any info would be great. Noise happens at cruising speed about 45- 55 mph and under min. load.

YOU MIGHT HAVE SPIDERS IN YOUR EXHAUST FROM "KNOTEENUFF" ( GERMAN TECHNOLGY) RIDING & LUGGING THE MOTOR. [smiley=drink.gif]

[tommyo]

Gettinold,

Happens all the time now at any speed. Have some blow by at the end caps between the end caps and the muffler. Don't think 117mph is lugging it to much. I'm thinnking about pulling the chrome end caps off and putting the black ones back on and trying that. Any other suggestions would be great.