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Greg,
A while back I bought a 20B, for a spare. I was warned ahead of time
that it didn't have any compression and needed rebuilding. I squirted
liberal amounts of ATF into each of the intakes, making sure I got it
to all 3 chambers. I figured that the ATF would help soften the
carbon deposits on the rotors, making them easier to clean during
rebuild. In the interim, I will crank it through a few times about
once a month and add some more ATF. It now "puffs" like it should,
but maybe not as strong as a new engine, but it sounds healthy enough
to run. I just assumed it was due to the fact that it had the help of
the ATF to get the apex seals to seal a little better. Im still
planning on going through this engine some day, but I'm tempted to
hook it up on a test stand to see how it runs before tearing it down.
Mark
On 12/20/08, George Lendich <lendich@optusnet.com.au> wrote:
Ed,
Did you know about this before?
George (down under)
----- Original Message -----
From: Greg Ward
To: Rotary motors in aircraft
Sent: Saturday, December 20, 2008 11:54 AM
Subject: [FlyRotary] Re: engine preservation
I just read a great article on running ATF through the Rotary, supposedly
to loosen up the apex seals, etc. (high detergent level). Raves on about
having done this multiple times in many engines, and supposedly power
increases of up to 20% +. Anybody done this? Results?
Thanks;
Greg Ward
Lancair 20B N178RG in Progress
----- Original Message -----
From: John Downing
To: Rotary motors in aircraft
Sent: Friday, December 19, 2008 5:35 PM
Subject: [FlyRotary] engine preservation
Lynn, thanks for the heads up on the engine. Even though it is in a
heated garage with hot water heat in the floor, I pulled the plugs and put
oil in each rotor cavity and rolled it over 8 revolutions and duct taped the
exhaust. That should even oil the muffler bearings when I start it again.
JohnD
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