I have a ZDZ 40 installed in a Midwest Extra 300, 80 incher. Weighs in
at 15.5 lbs. Engine has less than 3 gallons thru it, and is starting to get
stronger.
The problem is that the Pitts style muffler that came with the motor keeps
coming loose. Three times now. The last time, I used a large amount of
Loctite Red when I remounted the muffler. Still came loose. Screws and
mounting threads were properly cleaned. Please, what's the solution?


Gerald