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From: "jesse farr" <jesse@jessfarr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-574006@logan.com>
Subject: Re: [FlyRotary] Re: Engine damage thoughts
Date: Mon, 20 Dec 2004 11:53:44 -0500
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Ernest: I don't know about cleaning rotors but I can tell you about a high 
dollar oil cooler (and this one was built like a tank.)   No rebuilder in 
the country would touch it, as they all said it had way too much carbon 
build up.  When returned to me, I bought a couple of gallons and a five 
gallon bucket of carburetor cleaner and soaked and cleaned the stuffing out 
of them.  I then hosed everything off, let dry and sprayed full of oven 
cleaner. Hosed off and out again (might have done twice, don't remember - 
didn't do no baking, etc.; though) and carburetor cleaned again and when 
returned same unit to rebuilder for rebuild, he asked why I had sent him 
either a new or re-cored cooler, when told not done by mistake but because I 
wanted pressure tested and tagged, he only charged me about a third of 
normal price for those two tasks.  It obviously cleaned the things as well 
as new.  It has since run a good while in good shape; right now they are 
having to cover to keep from excessive cooling; but, who isn't ? <g>  I like 
it and think it (oven cleaner and subsequent carburetor cleaning) works 
fairly well.  You could perhaps leave on too long and damage some things but 
I didn't test until destructive point reached.  JWID
jofarr, soddy tn

----- Original Message ----- From: "Ernest Christley" <echristley@nc.rr.com>

> I've heard several comments about cleaning carbon.  I don't know if I'll 
> have that problem, but I wanted to share an idea that I got off of one of 
> those DIY shows.  The topic was about cleaning a grill, and several 
> options were given:> 1--oven cleaner
> 2--wrap in paper towels, spray down with ammonia, seal in aluminum foil 
> for several hours.
> 3--wrap in aluminum foil and back on high heat for several hours
> Would any of these present major drawbacks to cleaning a rotor without all 
> the elbow grease?