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Hi! Ed
I took another 91 13b NA apart today, it had good compression on a gauge six good pops at the exhaust port when rotated by hand, didn't smoke & ran well . The slots were 2.26 to 2.43 wide, the apex seals worn concave by about0.15mm on each side. by the wear on the eccentric shaft bearings this engine had spent a lot of time at high revs. I doubt very much that your engine demise was called by seal clearances, You are not missing any tools by any chance?
Georges Boucher
-------Original Message-------
Date: 04/17/05 12:35:17
Subject: [FlyRotary] Re: New rotors, New housings
I do know that my worn slots measured 1.98 mm at the bottom and range from 2.16 to 2.26mm at the top - giving an out of vertical of from 0.18 to 0.28 mm. The specs say a maximum feeler gauge between an inserted apex seal and wall is given as 0.15mm, I could insert an 0.18 mm feeler in some and an 0.15mm in all. I don't think I would feel comfortable flying with a rotary in that shape (anymore {:>)). Putting them in an auto is a different story - if it breaks - park on side of the road rather than strain the eyeballs looking for an airpatch.
Ed A
----- Original Message -----
Sent: Sunday, April 17, 2005 3:24 PM
Subject: [FlyRotary] Re: New rotors, New housings
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Ken I screwed up on reporting the rotor slot width, it should be 2.17 to 2.26mm not 2.017 to 2.026mm
Georges
-------Original Message-------
Date: 04/17/05 07:51:53
Subject: [FlyRotary] Re: New rotors, New housings
-------------- Original message from keltro@att.net (Kelly Troyer): --------------
Georges,
Are these numbers in reference to the apex seal slot taper from
the bottom of slot (2.017 mm) to the top of slot (2.026 mm) which
is a taper of (.009 mm) or about 3.54 thousands here in the 48 ??
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from "Echo Lake Fishing Resort (Georges Boucher)" <echolakeresort@telus.net>: --------------
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Correction, the readings were 2.017 to 2.026mm
Georges
-------Original Message-------
Date: 04/16/05 19:05:31
Subject: [FlyRotary] Re: New rotors, New housings
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Hi! Ken
Do you you cut on a taper, where does your taper start? or do you just skim 0.015" off each side for a total of 0.030". I just measured the two rotors that were in a "GOOD" running 92 13b NA & got a reading of 0.017 to 0.026mm, I guess they are toast.
Georges Boucher
-------Original Message-------
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