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Message-ID: <497E84E5.1040308@gmail.com>
Date: Mon, 26 Jan 2009 21:52:05 -0600
From: David Staten <david.staten@gmail.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Frying pan into the fire....Arrgh
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For the first incarnation of the rotary rebuild on chris's plane, I had 
purchased 3 cores as a batch from a guy in Biloxi (pre Katrina).. all of 
the parts from those engines were recycled into 1.75 functional 
engines.. including the bolts. For that rebuild we did not buy a bolt 
kit, but polished and reused the existing bolts.

I have not heard Chris mention that he bought new bolts, so they were 
likely the old ones and a bit stretched.

I have no reason to believe they weren't torqued properly. Our first 
build we used electric tape AND silicone to help prevent tension related 
harmonics and that made the bolts a very snug fit, and we torqued 
meticulously then. I would expect he did likewise now

Possible, but not likely.
Dave

David Moyer wrote:
> Is it possible that the engine studs weren't torqued to the proper 
> settings or that they stretched? Just a few uneducated guesses. So 
> take it for what it is worth.
>
> wrjjrs@aol.com wrote:
>> Guys,
>> If he is getting coolant around the o-rings at those temps there must 
>> be a problem. The cars have 185°F thermostats for crying out loud. 
>> 220 for a short time should NOT kill the o-rings. I would check to be 
>> sure you hadn't broken an engine stud. (Or two!) Often not replaced 
>> at rebuild they can break.
>> Bill Jepson
>
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