I’m replacing my blown out muffler on # 639 with a walker 22771. The muffler is much smaller (and lighter). I notice the stock muffler is rigid mounted to the coach frame. I been around a lot of cars, boats, airplanes, power sports, etc and cannot recall ever seeing any part of an exhaust system rigid mounted to the frame of the vehicle. Is there some valid reason for this? Is it just a compromise Newell chose due to the weight? My intention is to mount the muffler from flexible exhaust hangers, but just want to throw it out to the gurus in case I’m missing something.
Gregg and Sue Miley
#639
Nampa / Caldwell Idaho area.
I would imagine there is a flexible section of exhaust somewhere that isolates the exhaust from the engine to the exhaust piping. This is how most big diesels are done, they very rarely put isolators on the mufflers. Only other thing I would note is that eventually rubber fails and maybe they did not want the muffler dragging on the ground when the rubber fails, just something to think about, you may make yourself a safety strap to catch the muffler in the event the rubber ever fails. Definitely will not hurt to have the muffler isolated from the frame.
trust me you dont want the muffler and pipe to fall off. EGT temps will burn down the coach and melt everything. Had this happen on my Monaco, didnt burn, but took like 12 hours to fix all the air lines and electrical stuff, not to include 10,000 trips to truckpro for exhaust parts. Rubber will fail over time, well actually the roads will make it fail quicker.
Adam & Dana Mize
coach # 480
1998 45' 2 slides
Detroit Diesel series 60 ddec
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