In lieu of knowing the correct spec for ARP bolts while using locktite
instead of their lubricant, I would think that the locktite would
accomplish sufficient resistance to the bolts backing off rather than
risking twisting off the heads trying to over torque the bolts to an
unconfirmed higher rating.
But in the end, there is no substitute for knowing the correct specs
before doing any tightening.
Joe (C)
-----Original Message-----
From: EDWARD BARNARD [mailto:edwardbarnard@prodigy.net]
Sent: Monday, June 21, 2004 4:14 PM
To: Joe Curry; fot@autox.team.net
Subject: RE: flywheel bolt lube?
Joe: I agree with you on all but your last comment.The way a bolt holds
in place is by torqueing it to the point that the threads distort and
hold the bolt in tension. A harder bolt will need to be torqued to a
higher point before the threads distort. Torqueing to the normal spec is
actually worst than using the original bolts because the hardened bolt
will not be held in tension. I have heard different figures ranging from
10 to 25% greater torque. Don't get me lying. I bet Mike Porter knows
the figure. Thanks - Ed
Joe Curry <spitlist@cox.net> wrote:
My understanding is that using ARP fasteners you have 2 things working
for you that cause different settings.
1. The fasteners are stronger and therefore will take higher torque
settings.
2. It is highly recommended that you use the ARP thread compound that
they provide. This is supposed to offer less resistance to the threads
and the mating surfaces.
If you use Locktite instead of the ARP thread compound, everything above
is out the window. I agree that one should use locktite on the flywheel
bolts but can't say what torque settings to use. My guess would be to
use the recommended book settings and you will probably be OK.
Joe (C)
-----Original Message-----
From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net] On
Behalf Of Rocky Entriken
Sent: Monday, June 21, 2004 1:08 PM
To: Bill Babcock; MJSUKEY@cs.com; fot@autox.team.net
Subject: Re: flywheel bolt lube?
Related question---
I've always assumed that torque specs using Loctite were the same as the
standard torque specs in the book.
But using ARP I use different specs, usually higher.
True?
The only place I've used ARP so far is rod bolts. And then it was
because my
engine guy told me to -- and he gave me the torque specs.
Also, ARP lubricates the bolts going in. Does it also have Loctite
properties?
--Rocky
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