Mailing List flyrotary@lancaironline.net Message #11940
From: John Slade <sladerj@bellsouth.net>
Subject: RE: [FlyRotary] Low power 13B Operation
Date: Tue, 5 Oct 2004 13:12:12 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
Well, they say a picture is worth 1000 words.
In this case the picture is worth about 1000 dollars. :(
 
The compression tester prints a tape showing the compression pulses. On rotor 2 it looks fine. 3 peaks for every cycle. On rotor 1 there's one peak, one tiny blip, then nothing. I took off the exhaust manifold and, sure enough, two of the seals are shiny and spring back about 1/16 inch when you press them (hard). The other seal is intact, but not shiny and only springs back maybe 1/32 when pushed. It IS moving, so it's not a stuck seal - sounds like the side seals are gone. We'll know more when the Mazda guy gets the engine comes apart......
 
John (just a minor set back)
 
 
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