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Re: Quiet muffler Posted by Ari [Email] (#2847) [Profile/Gallery] (more from Ari) on Tue, 22 Jul 2003 06:51:48 In Reply to: Quiet muffler, John Dreher, Tue, 22 Jul 2003 05:38:04 Members do not see ads below this line. - Help Keep This Site Online - Signup |
The stock (Starla) muffler is pretty quiet. I never use muffler cement, and I've always been able to get good seals simply by tightening the clamps properly. Cement won't hurt.
A very easy way to check for leaks is to get yourself a pair of smooth bottom shoes - no blocky hiking boot or running shoe treads. Sit down behind the idling car, and block the tailpipe with your foot. You should feel a lot of pressure, and the engine will bog down. If there's a leak, you'll hear it.
My guess is that unless there was a defect and leak in one of the new parts, it isn't a leak. Until Scott gets audio clips into these posts, we'll have to do with guessing about sounds.
Did you replace the rubber hangers at the same time? Are they the right size? It's very possible that you have very tight rubber hangers that are causing the body of either the muffler or resonator to touch the chassis. This will amplify the noise, especially inside the car. I always buy new rubber hangers with my mufflers, and rarely ever use them - if the old hangers are in decent shape, I re-use them. The muffler hangs a quarter-inch lower, but the extra slop makes for a quieter system. As long as the muffler isn't flopping around (makes for banging and stresses joints), it's fine.
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