[DML] Re: H2O Pump?
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[DML] Re: H2O Pump?



There is no set life to a water pump. They can last years or fail
quickly. A lot has to do with the following:
Belt tension
The hardness of the water added (assuming you DID use a permanant type
anti-freeze) Straight water is death to a water pump without additives.
Amount of time the car sits
How often the coolant (and it's additives) has been changed
If the motor was ever overheated
The "pedigree" of the water pump. If it is an OEM part or if it has
been rebuild, by whom, and how it was handled. If it was dropped or
the shaft was hammered on the seals inside can be cracked.
The prevailing wisdom is that if it has never been done you should get
a Master Water Pump kit and just replace all the seals, belts, hoses,
clamps, and bearings. 25 years is a LONG time for a water pump to
last! Ditto for the radiator. The heater core seems to be OK with age.
If you see weeping from the hole in the bottom of the water pump
casting it is gone. That coolant will wash out the lubricant from the
beariings and they will fail. But maybe not before the seal lets go
completly and the coolant runs out quickly from the weep hole. The
cooling system on a Delorean MUST be leaktight. The first signs of
overheating will be a low level of coolant followed by the system
gettng airbound and then the motor smoking. The PRV doesn't take
overheating kindly!
David Teitelbaum
vin 10757







--- In dmcnews@xxxxxxxxxxxxxxx, "robert parker" <roberthparker@...> wrote:
>
> How long, pray tell, does a replaced water pump last? I replaced
mine the 
> Fall of '96, ~7,000 mi. ago, and am noticing some coolant loss. Not
much, 


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