Re: Timing belt replacement

[Wolff <wolff_b@ix.netcom.com>]

Hmmmm... section 17.5 shows the tool 2079 in use. The reason for this
tool I suspect is that most torque wrenches do not go up to 330 ft lbs.
Hence the extension (I've heard it referred to as a torque multiplier)
is used with a torque wrench at 258 ft lbs. Whether only 258 ft lbs
without tool 2079 will allow your harmonic balancer to loosen up later
or not is probably a question for the list. I know that someone did my
4kq incorrectly because when I went in there to do my timing belt the
harmonic balancer bolt was so loose that I undid it with one hand.
Actually, it more the weight of the cheater bar that undid it. Yikes!
Wolff
Want to see a pic of the 95k belt from my '91 200 tq? Look here:
http://www.succulents.com/quattro/
Scary, obviously the PO didn't follow proper service intervals.

John Larson wrote:
> 
> Wolff. Yup, an I-5 2.3l 20v. Torque shown in multiple places in Bentley, special
> tool mentioned only once. I was able to use my torque wrench in there. John.
> 
> Wolff wrote:
> 
> > Is this on an I-5?
> >
> > John Larson wrote:
> > >
> > > Bentley doesn`t mention a torque multiplier. It specifies 258 ft/lbs period.
> > > Torque specifications are determined by the diameter of the bolt, the thread
> > > pitch, and the strength of the bolt. Some bolts, like the cylinder head bolts,
> > > and the flywheel bolts in many cases, are "torque to yield"; they stretch a
> > > predetermined amount, and are NOT reusable. Torque specifications are stated
> > > for a reason, as are torque patterns, and too tight can be just as bad as too
> > > loose. Sometimes the tried and true axiom, "If some`s good, more`s better",
> > > isn`t always applicable. John." Look out Martha, he`s goin` off today!"
> > >
> > > Wolff wrote:
> > >
> > > > John Larson wrote:
> > > > >
> > > > > Rick, the blue stuff is loctite med strength, the green stuff is another
> > > > > high strength loctite, and the LAST thing you want to do is have an easy
> > > > > off crankshaft bolt. Check the Bentley for the torque, its like 258ft
> > > > > lbs.
> > > >
> > > > Careful here! It's a lot more than 258ft lbs if you aren't using the
> > > > torque multiplying tool. Some listers use 330 foot lbs direct. That's
> > > > like a 110 lb significant other 3 feet out on the bar if I remember the
> > > > thread correctly.
> > > > HTH,
> > > > Wolff