Sanity check time. The bolts in pan are 6mm, not 3/8".
Tracy
----- Original Message -----
Sent: Thursday, February 03, 2005 5:14
PM
Subject: [FlyRotary] CCI sandwich
mounts.. torque values..
The oil pan "sandwich" mounts for the rotary take 3/8"
bolts.. Chris
and I had it temporarily mounted using hardware store parts,
but we
elected to use AN bolts to fit it up for the final/working
attachment.
3/8 translates to AN6... and we are looking at about AN6-37
for the
bottom and AN6-34 for the top mounting holes (this takes into
account
the plywood aft bulkhead and stainless overlay/firewall, with some
fender washers to distribute the force.
I don't have the CCI
paperwork handy.. is there a recommended fastener
and torque value for use
with those mounts?
What is an appropriate torque value with AN6
bolts/nuts? I have one
reference on hand and want to compare notes. I have
the "aviation
mechanic handbook" 4th ed by Dale Crane that lists two
different torque
values: one is "nuts tension torque limits" and is
160-190 INCH pounds,
but it also lists a "nut shear torque limit" as well
of 95-110 INCH pounds.
Rather than make a guess here, would
someone with the knowledge spell
out for me the difference between those
two categories?
Dave Staten
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