the damn thing SNAPPED! [was: Re: pressure plate bolt torque? ]

[Huw Powell]

> I ordered new bolts.  They do not have anything that looks like a washer.  These look like regular allen
> bolts.  I got them from Carlsen.
>
> Here's what just now happened.  I put the pressure plate on and bolted it up snug.  Then I removed one of
> the bolts, and I put some red loctite on it, #27100.  The Bentley calls for locking compound D 000 600.
>
> Then I proceeded put the bolt back in place, using the lower of the two torque settings, 55 ft lbs, which is
> for the shouldered bolts.  The non-shouldered bolt spec is 74 ft lbs.
>
> As I feared as I was turning it, the FREAKING BOLT SNAPPED!

I think someone is mixing up flywheel to crank bolts - fat, short,
shouldered ones in a snmall circle, and the pressure plate to flywheel
bolts, little baby allen head ones around the outside.  But I don't know
who... or how... or when...

> >     You should use the new shouldered type bolt, this means there is a built
> > in washer cast into the head of the bolt.  You've seen a shouldered bolt
> > before most likely, it has a regular hex head on it, but also flairs out to
> > form a built in washer, all one piece.  The flywheel bolts are stretch so
> > don't reuse, some have reused, but safety wise I have always gone with
> > replacing them.  If you got new bolts from the dealer, which you should,
> > then use the shouldered bolt spec.

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/