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Exhaust stacks

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17 Mar 2022 15:21 - 17 Mar 2022 15:22 #1 by Larry Snyder
Replied by Larry Snyder on topic Exhaust stacks
It’s not noticeable inside the plane, maybe a bit louder outside. Both stacks have the rings for shrouds, one for carb heat and one for cabin heat. If you fly very much, you’ll be trying to tighten the muffler all the time, and the stacks actually wear where the fit in the muffler making it impossible to get th er m tight!
Last edit: 17 Mar 2022 15:22 by Larry Snyder.

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17 Mar 2022 14:57 #2 by Randy Branson
Replied by Randy Branson on topic Exhaust stacks
Larry, how much louder is your plane with the straight pipes versus muffler? How did you handle the shroud for cabin heat? I also have the loose muffler syndrome with new exhaust stacks.

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17 Mar 2022 14:54 #3 by Randy Branson
Replied by Randy Branson on topic Exhaust stacks
I got a new set of stacks and no-blow gaskets from Vern Gregory. He orders them from Univar, but going through him is the same price and he gets credit for the purchase.

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10 Mar 2022 11:44 #4 by Larry Snyder
Replied by Larry Snyder on topic Exhaust stacks
Since there is no muffler with the straight stacks you have to put the heater shroud on the other stack.
The following user(s) said Thank You: Dave Ingelse

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10 Mar 2022 10:59 #5 by Dave Ingelse
Replied by Dave Ingelse on topic Exhaust stacks
Thanks for the information. Does it use a different muffler & heater muff?

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09 Mar 2022 19:54 #6 by Larry Snyder
Replied by Larry Snyder on topic Exhaust stacks
I have. Mine burned at the end that fits into the muffler, but I was having issues at the time trying to keep my muffler tight, so I don’t know if the problem was the stack or the muffler.

Since I couldn’t keep my muffler on tight, I finally went with Alon-style straight pipes and have had no problems since. Dawley makes them for the C-75/85. I now have lots of room at the firewall.

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