Loose Heat Muff

[Jim P]

I have an XP-360-M1 with the Vetterman crossover exhaust. The heat muff is on the #1. When I've tightened this down with everything assembled, the entire heat muff rotates around the exhause pipe somewhat easily.

What's the best way to keep this from rotating? I figure I'll call Larry on Wednesday, but thought to ask the list first.

Jim

[dmeloche]

Read this.

Too loose and you can wear thru the exhaust pipes!

http://www.expercraft.com/hotline/article/569

Van's sells a great airframe kit but the "accessories" sometimes aren't properly engineered in my opinion.

Doug
RV6 180 hrs
Love it!!

[AlexPeterson]

They will wear the pipes. I had Larry replace the aft sections on mine around 750 hours or so. One thing that helps is to enlarge the holes slightly (not easy to do, might best use a file) in the SS heater end cap halves, so that the large hose clamp outside can mash it against the pipe. Others have put a ss hose clamp right on the little flanges which touch the pipe. One can buy narrow all ss clamps from McMaster.