Tom,

I let a bad water pump (bearings) go up-repaired for too long several years
ago. The impeller dug an eighth inch gouge into the case. I replaced the
pump but did no repair to the gouge. I don't see any loss of efficiency in
the cooling system although you'd think there would be some. I'll call
it negligible. Even idling for an extended period doesn't send the heat up
sooner than it did before the pump re-machined the case.

John Meeks
'91 Vanagon MV
Northern Michigan

Vanagon Rescue Squad
www.vanagonauts.com

On Sun, Sep 11, 2011 at 5:45 PM, Tom Lambas <twlambas@gmail.com> wrote:

> How serious is, and can it be corrected? The wear is .6mm at the worst
> point. The engine came out for
> overheating issues and a little exhaust in the coolant.  I'm doing a
> complete rebuild because of the high mileage.
>
> *http://tinyurl.com/44q9da9*
>
> Thanks, Tom
>