[Vwdiesel] Intermediate shaft pulley

[Andrew .Libby]

The tension on the intermediate shaft pulley is maintained by the crank
driving the belt and the pump and cam resisting the motion due to springs
and fuel being pushed through a small orifice (nozzle).  I've never actually
tried to turn the int shaft by hand, but imagine that even with the belt
properly tensioned it wouldn't be too hard to do.  I'm actually more
concerned about the belt being too tight than being too loose, as if it is
too tight, the bushings in the pump and the intermediate shaft bearings will
both wear out in short order.

Andrew

On 12/25/06, MLightner <mikel at buncombe.main.nc.us> wrote:
>
> Dear listees,
>
> I was mistaken about the IS pulley having a wee bit of slop once mounted
> and torqued down -I took it back off and made a mark on the back side of
> the pulley and on the shaft boss, then I could see that the two were
> moving together
> once tightened.  Also, the pulley is not easily moved once the t-belt is
> on and the tensioner is set, I must have misremembered when it was that
> I actually checked it for movement.  Wheww, things are looking a little
> better now.
>
> >
> >
> >
> >>>One other question:  The pully on the intermediate shaft is not a tight
> >>>fit on the shaft, it moves maybe a degree either way before the key
> >>>stops it.  I tightened the bolt down to about 70 ft-lbs.  Also, is it
> >>>normal to be able to slip this pulley around against the T-belt after
> >>>the tension is set on the T-belt?
> >>>
> >>>
> >>>
> >>>
> >>Like Val mentioned, it shouldn't be loose.  Tightening the bolt should
> >>be putting tension on stuff, so better investigate.  Are you seeing the
> >>play at the keyway, or just feeling it on the pulley when turning it?
> >>If going by feel, it would be oil pump and vac pump play you feel?
> >>
> >>
> That must be what it was, thanks!
>
> Mike
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