Mailing List flyrotary@lancaironline.net Message #44526
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: RE: [FlyRotary] Re: engine preservation
Date: Sat, 20 Dec 2008 07:00:20 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

Greg, using ATF  is a “common” method of freeing up stuck Apex seals.  When left sitting for long periods, people who owned older RX-7s would go out one morning and attempt to start their autos. They would hit the ignition and the engine would wiz over with no compression.  A number decided that the *&@) engine was shot and practically give a way the auto and engine.

 

Pull a spark plug from  each chamber, pour in some ATF, Marvel Mystery oil, WD-40 or your favorite light weight oil , let it sit a while (over night seemed to be the most common waiting period) and the next morning – Zooooommmmmmm!! Compression and a running engine.

 

So for old engine or engines with worn or stuck seals, a fluid like ATF may help compression at lower rpm and assist in starting, I doubt very seriously they would do anything for you at higher rpm.  But, someone like Lynn could enlighten us all about this “urban myth”.

 

Ed

 

Ed Anderson

Rv-6A N494BW Rotary Powered

Matthews, NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.dmack.net/mazda/index.html


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Greg Ward
Sent: Friday, December 19, 2008 8:54 PM
To: Rotary motors in aircraft
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

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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