Blown Water pump

[T Hergen]

If doubt the following in itself would cause a failure, but it
can't hurt to check...
If there is a heater core water cutoff valve (usually actuated
when the A/C is switched to max), make sure it isn't installed
backwards.  When properly installed, the water still flows to
the valve and back to the engine when the valve is actuated.  
If backwards, the flow through the heater hoses is stopped
completely when the valve is actuated.

Mine is now mounted upsidedown because the mechanic who replaced
my heater core switched the 5/8" and 3/4" extensions.

Tom

On Sun, 13 Sep 1998, Martin Powlette wrote:

> Sorry about the non group related content of this message, but I need
> some great minds.
> About two weeks ago I replaced a water pump on a small block V8
> chevy1993 the customer said he had changed one some time back but I did
> not bother to ask how long ago. He shows up today and the new pump
> (2weeks old) is leaking again through the same breather hole in the
> pump.  When I replaced the new pump I also replaced thermostate & rad
> cap all AC Delco.  He now gives me the history ..... this is the third
> pump in less than 9 months.  I am lost for ideas.  Is there a GM
> bulletine covering this defect or is something wrong elsewhere.
> 
> Martin
>