ORIGINAL: jerryjohnson
OS 56 ATX. This engine is new, 6 or 8 flights and I have trouble with the stock muffler coming loose. I have tried thread lock, but it seems to give way to the heat. Any suggestions of what to use on the muffler bolt threads?
Jerry,
I also own the 55 AX with a Pitts muffler and didn;t have any problem with it coming loose. However on my .56 FS-a I had this issue (more vibration on 4 strokes?) until I used high-temp silicone glue - also called gasket glue, usually red color.
Muffler never came loose after 4 months flying, and also this stuff comes off easily if you need to unscrew the muffler.
I guess this is as close to perfect fit-fot-purpose as can be
Pic is .91 FS II - p