Mailing List lml@lancaironline.net Message #9367
From: Walter Dodson <coy0te@earthlink.net>
Subject: Engine shock mounts
Date: Wed, 11 Apr 2001 22:20:33 -0700
To: LancairList <lancair.list@olsusa.com>
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Lord or Barry Controls Aerospace mounts are pretty much the same.  If you
spend the extra few dollars for the Lord mounts you may or may not gain
anything.  Barry will give you a nice little MagLite if you send them your
receipts for a set of their mounts which replace Lord mounts.  I have given
away many and still have two of my own.  It has their logo on it and is a
nice electric blue color.  I have it in my hand now.
Aircraft certificated in the normal or utility categories will have in their
parts manuals an order in which to install various part number mount
assemblies.  Often the upper right and lower left are the same or the top
and bottom are, likewise, the same part number.  In such a case it is very
unsafe to rotate the mounts out of sequence.  Those aircraft must meet type
design.
The bolt lengths are sometimes incorrect.  The washer stack is never wrong.
Only use the large area washers supplied or their exact replacement.  It is
foolish to shim an engine up with those washers rather than spend the few
dollars for new mounts.  The labor alone is much more than the price of the
mounts and there is no price on piece of mind.
Regarding bolt length, adding or omitting the small washers under the head
or the nut will change that length.  Always use engine nuts.  They are all
steel AN 363.  Use new nuts and bolts.
Always use new shock mounts.  This is a really stupid place to cheap out.
If your engine doesn't center up in the cowl like it used to... spend some
money!  And for God's sake, put away the hammer.
Walter Dodson  1895740IA

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