Mailing List flyrotary@lancaironline.net Message #35361
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Engine Rebuild
Date: Tue, 6 Feb 2007 14:30:00 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sounds like you are on top of it, Joe.

Ed

----- Original Message ----- From: "Joe Hull" <joeh@PilgrimTech.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, February 06, 2007 12:34 PM
Subject: [FlyRotary] Re: Engine Rebuild


Be certain and check that the apex seal slot is within specs regarding
wear
or "V"ing of the slot walls.  That is what ( I am convinced)  caused my
apex
seal failure at 160 hours.

Thanx Ed, yep checking the slots VERY carefully is top on the list. If I
recall Lynn's recommendation was to put the end of a new apex seal in the
slot sticking up and if the end moves more than 3/16 of an inch - then the
slots are too wide (AND that 3/16's is end of life - so it should be way
less if I want 1000hrs out of it).

The other way he suggested is to (quoting) "stand a new seal on end in the
clean groove and use a feeler gage to measure side clearance per the manual.
Measure in 5 places across the groove, and try the gage on both sides of the
new seal, for bellied or less than straight grooves."

Joe Hull
Redmond/Seattle WA, Cozy-Mazda Rotary 71hrs




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