Today's Message Index:
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1. 04:11 PM - Re: Engine Lord Mounts (Noel Loveys)
2. 05:46 PM - Re: Engine Lord Mounts (Speedy11@aol.com)
3. 06:20 PM - Re: Re: Engine Lord Mounts (Jim Baker)
Message 1
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| Subject: | Engine Lord Mounts |
There is a procedure that requires always torquing a nut...not a bolt.
Unless the manufacturer of the plane specifies the bolt be torqued.
There
certainly are places where bolts need to be torqued into fittings. My
Ivo
prop is an example of that.
That being said; you are in fact the manufacturer of the plane.
On engine mounts I would do exactly as you said; torque (the nut) until
the
slack was taken out of the mount and a cotter pin could be set. Often I
have used crows feet for doing this, making torque adjustments for the
offset of the crows foot.
Noel Loveys, RPP, AME intern
Campbellton, Newfoundland,
Canada
Kitfox Mod III-A, 582, B box, Ivo IFA
Aerocet 1100s
<mailto:noelloveys@yahoo.ca> noelloveys@yahoo.ca
Do not archive
-----Original Message-----
From: owner-engines-list-server@matronics.com
[mailto:owner-engines-list-server@matronics.com] On Behalf Of Grant
Piper
Sent: Sunday, April 29, 2007 8:50 PM
Subject: Re: Engines-List: Engine Lord Mounts
Hi Stan,
You will have trouble getting a torque wrench onto these bolts, and it
may
be of limited use. The rubber mounts must be compressed such that the
bolt
is tight on the inner spacer (this limits the amount of compression).
The
compression of the rubber will add to your torque reading also. I've
only
installed a couple of enginmes, but in each case did the bolts up tight
on
the spacer then as required to get the cotter pins in.
regards,
Grant
----- Original Message -----
From: Speedy11@aol.com
Sent: Monday, April 30, 2007 9:03 AM
Subject: Engines-List: Engine Lord Mounts
I bought the Van's Lord mount kit for my IO-390 (same dimensions as
IO-360).
For anyone who's installed their engine, to what value did you torque
the
7/16 engine mounting bolts?
Did you use 475 inch pounds? Did you use coarse thread torque or fine
thread?
Thanks,
Stan Sutterfield
_____
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<http://www.aol.com?ncid=AOLAOF00020000000503> .
href="http://www.matronics.com/Navigator?Engines-List">http://www.matro
nics.
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Message 2
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| Subject: | Re: Engine Lord Mounts |
Grant,
Thanks for your reply,
I'm torquing the engine bolts by torquing the bolt head - since I can't get
to the nut. It's the only way I can figure to torque them. The rubbers are
compressed and the spacers seated. I just want to make sure I'm torquing the
correct amount.
Mahlon, any comment on this?
Stan
Hi Stan,
You will have trouble getting a torque wrench onto these bolts, and it
may be of limited use. The rubber mounts must be compressed such that
the bolt is tight on the inner spacer (this limits the amount of
compression). The compression of the rubber will add to your torque
reading also. I've only installed a couple of enginmes, but in each
case did the bolts up tight on the spacer then as required to get the
cotter pins in.
regards,
Grant
----- Original Message -----
From: Speedy11@aol.com
Sent: Monday, April 30, 2007 9:03 AM
Subject: Engines-List: Engine Lord Mounts
I bought the Van's Lord mount kit for my IO-390 (same dimensions as
IO-360).
For anyone who's installed their engine, to what value did you torque
the 7/16 engine mounting bolts?
Did you use 475 inch pounds? Did you use coarse thread torque or fine
thread?
Thanks,
Stan Sutterfield
************************************** See what's free at http://www.aol.com.
Message 3
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| Subject: | Re: Engine Lord Mounts |
X-mailer: Pegasus Mail for Windows (4.41)
Ah, the luxury of cotter pins....but not on my io520. 40-42 lb ft
and no retention other than torque.......
I think mine were 1/2, works out to 550-600 lb in. 7/16 would be
400-450 lb in. The internal spacers will limit compression. No oil
on threads for torque....
> For anyone who's installed their engine, to what value did you torque
> the 7/16 engine mounting bolts?
> Did you use 475 inch pounds? Did you use coarse thread torque or fine
> thread?
Jim Baker
580.788.2779
Elmore City, OK
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