Mailing List flyrotary@lancaironline.net Message #23419
From: Tracy Crook <lors01@msn.com>
Subject: Re: [FlyRotary] Re: Very strange problem after installing new turbo
Date: Thu, 9 Jun 2005 09:37:37 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I see 200+ hours before SAG on 87 unleaded but it happens MUCH sooner on 100LL.  Ed sees only 35 hours or so and that is non turbo.
 
John,  you never saw the gray (sometimes slightly pinkish) 100LL exhaust deposits because you were running WAY rich before which colors everything black.  100LL should always leave a light grey color if mixture is correct.  Turbo may change this a bit but I have no turbo experience except for the 2 minutes or so in your cockpit.
 
Tracy  (think John said 100LL for fuel?)



On 6/8/05, Ian Dewhirst <ianddsl@magma.ca> wrote:
 
4) SAG - but that is a lot more than typical SAG and the plugs are only 20 hrs old.
 
Hmm, SAG is a unknow for me...
 
 

Ed, coined that term to describe a loss of RPM that always seems to occur on take off when the spark plugs get old.  I forgot the acronym, but its cute.  Takes a couple hundred hours.

--
Dave Leonard
Turbo Rotary RV-6 N4VY
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/vp4skydoc/index.html
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