John,
Barr's stop leak will likely stick to the innards of you cooling system...
thus reducing cooling capacity permanently.
Replace the water pump and get that stuff out of there asap.
Bill

----- Original Message -----
From: "John Lauterbach" <jhlauterbach@email.msn.com>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, June 22, 2000 6:11 PM
Subject: Intermittent coolant leak

> I have an intermittent coolant leak in my '84 1.9L.  It looks like it may
be
> coming from the water pump pulley or the thermostat housing.  I cannot
tell
> for sure as the only thing that I can see now that I have the A/C
compressor
> installed is coolant dripping down over the oil filter.  Last night I put
in
> some Bars Leak and more coolant after my van peed over the parking lot at
> work.  No leak overnight.  This morning it peed again at work.  I have had
> it in the driveway for over three hours since coming home from work.  No
> leak.  All hoses are new.
>
> Are there any short term fixes if I have a leak at the water pump pulley?
>
> John Lauterbach
> Macon, GA
>