REFLECTOR: Exhaust/cowling

[Michael Watson]

Tom,

I have a six cylinder Franklin. the #5 and #6 (closes to the prop)
runs 1/4 inch from the cowl. I wrapped that area with the standard
speed shop header wrap, and placed a 4inch by 8inch strip of
ceramic cloth saturated with hi temp epoxy under the pipe on the
cowl. No blisters, the cowl remains cool.

On Dec 24, 2007 3:48 PM, Tom <tomcat05 at comcast.net> wrote:

> Had a funky 4 into one exhaust (single crossover), mild steel with no
> slip joints. I knew that this wouldn't work for long and it let go just
> before I needed plane for Christmas travel to be with family (wife is
> pissed). Anyhow I called Velocity and was told the two pipe, 2 into one
> system should be an easy install (IO-360). Bolted up nice and easy but
> the cowling was hitting the pipes at the #1 cyl (left, rear). Cut a slot
> in lower cowl and added a blister with 1/2" clearance, wrapped the
> exhaust and test flew. After landing cowling was bubbling and smoking.
> Tried some insulation on a 2nd test flight but it was touching exhaust
> and had similar issues. 2 questions:
> 1) how much clearance do you need between exhaust pipe and cowl?--I'm
> working on a larger blister now
> 2) what's a good insulation material that's not too wide?? thx Tom
> _______________________________________________
> To change your email address, visit
> http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>



-- 
Mike W.
1997 Velocity Elite RG
Franklin /IVO Electric CS
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.tvbf.org/mailman/private/reflector/attachments/20071224/e7fe2f8c/attachment.htm