Fwd: <VV> FW: Water pump lubricant

[HallGrenn at aol.com]

In a message dated 4/20/2005 9:40:55 AM Eastern Daylight Time, 
SadekCH at NSWC.NAVY.MIL writes:

> 
> Folks, Any thoughts on this?
> 
> Thanks,
> 
> Chuck S
> 

Well April Fool's day is over so I'll venture some info.   I used to do all 
the mechanical work on my mother's and sisters'  cars and had to do a lot of 
cooling system work.  The green antifreeze from the sixties (and today) includes 
the additives the water pump needs for lubrication and seal health.   It also 
includes additives that buffer the inherent corrosive nature of the 
antifreeze itself.  (The new long-life orange antifreeze does too).  The reason to 
remove, flush and replace the antifreeze at regular intervals was partly to put 
new stuff in before the old stuff got too corrosive and damaged the 
engine/cooling system.  I sometimes used water pump additives (Prestone or Dupont No. 7) 
specifically designed as "water pump lubricant" until a Presone Tech told me 
they were a waste of money because the fresh antifreeze was adequate for the job 
alone.  I also used distilled water with the antifreeze to make the correct 
mixture so I didn't introduce chlorine or other additives that were in the tap 
water.

Bob Hall
Group Corvair