912UL Exhaust leak
in General Tech Discussion
5 years ago
Hi Roger,
I am getting exhaust fumes in my cabin on my Aeroprakt A22. My exhaust manifold is the type where the manifold attaches to the muffler with the ~ 2" springs. I guess it is sort of a ball and socket type connection. During my 5 yr hose change last week my mechanic inspected the connections and put some type high temp sealant between them. On my first test flight the cabin was clear of fumes and all I could smell was the sealant on the springs of the muffler connection and/or what was put between the manifold to muffler connection.
On my second flight the fumes were back again. I must get this corrected fast and at any expense. Is there any way to improve the seal between the muffler and exhaust manifold? The muffler is from 2007 with 500 hrs in a dry climate. Do the mufflers ever fail within causing excessive back pressure? My muffler does not have a heat muff on it. Everything is out in the open.
Your input will be greatly appreciated.
William Campbell
Fresno, CA.
I am getting exhaust fumes in my cabin on my Aeroprakt A22. My exhaust manifold is the type where the manifold attaches to the muffler with the ~ 2" springs. I guess it is sort of a ball and socket type connection. During my 5 yr hose change last week my mechanic inspected the connections and put some type high temp sealant between them. On my first test flight the cabin was clear of fumes and all I could smell was the sealant on the springs of the muffler connection and/or what was put between the manifold to muffler connection.
On my second flight the fumes were back again. I must get this corrected fast and at any expense. Is there any way to improve the seal between the muffler and exhaust manifold? The muffler is from 2007 with 500 hrs in a dry climate. Do the mufflers ever fail within causing excessive back pressure? My muffler does not have a heat muff on it. Everything is out in the open.
Your input will be greatly appreciated.
William Campbell
Fresno, CA.
