Why use the Z-RC insulator?

[cbergen]

Had an engine in from a customer for an unrelated problem, but upon inspection of the insulator, here's what we found,

This is the bottom or the side facing the engine.

http://www.helifreak.com/album_mod/upload/147a6f44401a2f5227032aa3d50218da.jpg

This is the view from the side, look at the brass bushings......


http://www.helifreak.com/album_mod/upload/d9fe8c36daca85506b9bff82572d67ec.jpg


This is the end view, look at the twist....


http://www.helifreak.com/album_mod/upload/098a89dd7c05f9759872153b6968cc23.jpg


This is caused by overtightening the bolts holding the insulator to the engine, then overtightening the bolts that hold the carb to the isolator.

The cure?

http://www.helifreak.com/album_mod/upload/aa96382640860c7fda1a02a11946d070.jpg

The Z-RC Insulator, available from us at Bergen R/C, or other fine retailers! :D

More info available here, http://www.helifreak.com/viewtopic.php?t=11799 or at http://www.z-rc.com/

Instructions available here, http://www.helifreak.com//files/z-rc_adapter_rev3.pdf

[Brady Longmore]

For you new owners,

I bought one last summer and was able to install it easy in just a few minutes, and I'm a newbie that had no clue what I was doing. Engine purrs.

[rccardude04]

I read this and checked out the site, then decided it was worth the minimal price in comparison to the cost of a new engine. Plus it adds a little bling.
Too bad they don't offer it in Bergen Gold :)
By the way, mine was warped during the building process. I wasn't really aware you weren't supposed to tighten these much, and when I pulled it off to install the Z-RC unit, it was certainly twisted. No doubt this saved me some headache already :)
-Eric

[ErichF]

Word of caution when using this carb block...

After running our new Observer EB for about 10 minutes, the engine just shut off. The carb bolts had loosened, and the carb was barely hanging on.

The two nylon seals on the block get soft when the engine warms up, and you have to shut down and retighten the carb bolts while it's hot. Once you do that the first time, they stay nice and tight.

[rccardude04]

Good call! Thanks. I'll remember that (Or try to anyway)
-Eric