Mailing List flyrotary@lancaironline.net Message #26003
From: James Brewer <alpha@concordnc.com>
Subject: Re: [FlyRotary] Re: Rotary Diagnosis please
Date: Fri, 19 Aug 2005 18:15:10 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Yes, I replace the oil seal o-rings.  Yeah, it was smoking when I got it.  Very low
compression on one rotor. Replaced parts with Tracy's overhaul kit.  Bearings in rotors were not
replace but looked ok and measured fine.  New apex seals and side seals.
I didn't replace the metal oil rings on the rotors as they looked fine.  How critical are these anyway and what are the symptoms of failure/damage?

Jim



On Fri, 19 Aug 2005 20:49:27 +0000, Kelly Troyer wrote:
 Jim,
  You did replace the rotor oil seal O-rings I presume ?? Was it
 smoking like that before overhaul ?? -- Kelly Troyer Dyke
 Delta/13B/RD1C/EC2


 -------------- Original message from James Brewer
 <alpha@concordnc.com>: --------------


 Guys,
 I need some help on my recent 13B rebuild for my '87 RX7. Thanks
 to all previous replies on the crank angle sensor/TDC
 settings I was able to get it to crank and run. Now for the
 diagnosis of my present problem: Engine starts and idles with a
 slight
 amount of smoking. As the engine warms up and I increase the RPM
 I get a considerable amount of smoke. The smoke does
 not smell "sweet" like it is burning coolant but maybe it smells
 different in a rotary. Smoke is white not black. With limited
 running
 I haven't noticed a drop in the coolant or coolant in the oil.
 Before I pull the engine and go thru it again I would like to
 pinpoint the
 problem before teardown. I thought I was careful about the o-
 rings. I used Hylomar for the grooves as per Bruce Turrentine's
 tape
 to keep them in the grooves. Am I getting oil past the oil o-
 rings? Other sources or causes for my smoke? Tests I need to run?
 Help! Ed, Lynn, Leon or others.


 Jim Brewer
 Albemarle, NC


 --
 Homepage: http://www.flyrotary.com/
 Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/



Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster