flyrotary@lancaironline.net Mailing List Archive

The important factor about carbon is the type. When injecting oil from the pan the carbon is hard / varnish like and very difficult to remove. When using premix 2 cycle the carbon is soft and easy to remove and does not cause seals to stick in the grooves. The carbon is mostly residue from gasoline, not the oil.

Tracy

Sent from my iPad

On Sep 5, 2011, at 2:19 PM, Kelly Troyer <keltro@att.net> wrote:

Bill,

So carbon buildup was from a total of 170 hrs on 89-91 rotors...... ....Was carbon

on the 86-88 rotors considerably more considering they had 580 hours on them ?

I presume there is still no definitive reason for your sudden power loss............

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo

From: Bill Eslick <wgeslick@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Monday, September 5, 2011 2:53 PM
Subject: [FlyRotary] Re: The good news and the bad news......

Kelly,

I was using one oz of TC-W3 per gallon. I had the engine off 170 hrs ago due to a broken side seal on one rotor. While it was down I put in higher compression 91-94 rotors and counterweights.

Bill Eslick

On Saturday, September 3, 2011, Kelly Troyer <keltro@att.net> wrote:
> Bill,
> Curious what ratio of two cycle lube to fuel you are using and do you premix
> or run the stock metering pump ?............You show 750 hrs on your ship but
> indicated 170 hrs worth of carbon on the rotors...........Had you been into the
> engine 170 hrs ago and if so what reason ?..............