Carb Heat Assembly

[Kyle Boatright]

My airplane's carb heat uses the little ~2 1/4" diameter x ~ 4" long aluminum tube that bolts to the exhaust and uses a ~4" piece of SCAT to direct warm air to a flange on the airbox.

Reattaching the SCAT was about the final step in my condition inspection this year, and (once again) was a real PITA. The geometry there and the small amount of working space makes it really hard to attach the SCAT.

Other than going to a full heat muff (and where would I put it anyway?), does anyone have a good solution for this issue? I've dealt with it for 9 years, and have decided it is ridiculous to have something on the airplane that costs me an extra 30 minutes of frustration every time I disassemble it.

 

[Rick6a]

My airplane's carb heat uses the little ~2 1/4" diameter x ~ 4" long aluminum tube that bolts to the exhaust and uses a ~4" piece of SCAT to direct warm air to a flange on the airbox.....does anyone have a good solution for this issue?

Kyle,

You were able to endure it for 9 years. Mine was installed less than 4. My experience with the kit supplied "carb heat muff" was less than satisfactory and was an overall bad experience. Installed per plans, I never did observe any RPM drop whatsoever and when I removed it altogether was shocked and surprised to see the damage it was causing to the crossover pipe it was attached to. See here:

http://www.vansairforce.com/community/showthread.php?t=41027&highlight=carb+heat+muff

There are a couple of carb heat muff designs out there that are vastly superior to kit supplied muff. I bought both and offered my observations. See post #7 here:

http://www.vansairforce.com/community/showthread.php?p=313360&highlight=carb+heat+muff#post313360

 

[Brantel]

I used the Robbins Wings one and have never looked back!!!