Gary, I love my TiiCo conversion, and I too have experienced the harmonic vibrations. I was wondering if you had heard of anyone solid-mounting the exhaust system? What I mean is to do away with the rubber mounts that the muffler support brackets attach to and replace them with some type of solid spacer. The muffler will still be isolated from the body by the motor and transmission mounts. I have yet to understand why the system is rubber mounted. The 2.1 exhaust was solid mounted to the motor, so why can't this one be mounted solidly as well? I'm having some spacers made and I am going to give this a try. As for vibrations, I did find a couple that did not have anything to do with the exhaust. I had one at 3000-3200, and it ended up being the a/c compressor bearing. This was actually more of a buzzing than a vibration, but you could feel it when you touched the a/c compressor while the engine was in the 3K rpm range. I also put the "high density" foam in my motor mounts as per a suggestion for a vanagon.com contributor. This helped out as well. chris stanford montgomery, al |
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