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Date: Mon, 28 Apr 2008 12:45:21 -0500
From: Phil White <philwhite9@aol.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: How loose or tight should an engine be?
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I finished rebuilding my 20B some weeks ago, using Bruce's video as a 
guide, and since then I've read someone's post stating that he was able 
to turn over his engine with a bare hand on the eccentric shaft.

I put in Tracy's new apex seals.  As I assembled the engine, it was easy 
to turn with one rotor in and one side plate, much stiffer with 2 plates 
and 2 rotors.  Once I had all 3 rotors in and 4 side plates bolted 
together and torqued, I could only turn the engine over using a 15" 
wrench on the acces end nut, and applying maybe 75 ft lbs of force.  I 
used the recommended lubes on bearings and housings.

    Is this normal?  Or did I mess up some part of the assembly process 
that leads to so much drag with only rotors and shaft being turned (no 
accessories installed yet)?

    Any suggestions would be welcome (but I hope I don't have to 
disassemble the whole thing again!)

Phil 20B to install in an RV-10 in IL