My way to peace of mind on that front was to replace the water pump soon
after purchase.  Its now a known quantity and one less thing to worry about.

On 7/10/07, John Meeks <vanagon@gmail.com> wrote:
>
> On 7/10/07, Bruce Todd <beeceetee@gmail.com> wrote:
>
> >Being from the air cooled family, a water pump and its behaviour is
> foreign
> >to me.  Is there a way I can predict a possible failure?
>
> Bruce,
>
> The most common failure is probably worn bearings. David is correct,
> an over tight belt will accelerate bearing failure.  With the belt
> loose, check for play in the pump shaft.
>
> You will be able to hear the loose bearings as a rattling noise before
> the pump fails.  By this time though the impeller will be wearing a
> lovely groove in your engine case. This is not a fatal condition
> though this groove will reduce the efficiency of a replacement pump
> somewhat.
>
> Don't over worry about water pump failure, just enjoy your trip.
> --
> John Meeks
>
> Vanagon Rescue Squad
> http://www.vanagonauts.com/Vanagon_Rescue_Squad74.htm
>
> '91 Multivan, '85 GL
> Northern Michigan
> KC8ZFN
>
> ~~Before a mad scientist goes mad, there's probably a time when he's
> only partially mad.  And this is the time when he's going to throw his
> best parties.~~
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
www.crescentbeachguitar.com