[DeTomaso] water pump recommendations

Pantdino pantdino at aol.com
Wed Nov 13 19:29:12 EST 2013


I'm going to have Tommy Hodges do it, so it sounds like I should have him use one he is familiar with to minimize the chances of "problems"

Thanks, Jack



-----Original Message-----
From: JDeRyke <JDeRyke at aol.com>
To: pantdino <pantdino at aol.com>; detomaso <detomaso at poca.com>
Sent: Wed, Nov 13, 2013 1:21 pm
Subject: Re: [DeTomaso] water pump recommendations


If you're up to trying a couple of mods on your engine in your car, virtually any waterpump will work. A few have said the curved-vane impellors work better, but are more expensive. I tried both and saw zero difference in our engine temperature. If you get a pump with a bypass cast in place, it can be blocked by a removeable 3/4" freeze plug (0.15¢) in the brass washer. Then as I said any thermostat will work.  As for price, shop around but know that many cheap pumps come from backyard shops in China, sometimes without gaskets and at least one with unthreaded pulley holes. 

For me, the only critarion was aluminum or cast iron, in a name brand- and the extra 8 lbs of wt for iron with no benefits made that choice easy as well. My 20-yr-old modified engine uses a modified U.S-made Weiand straight-vane aluminum pump (also 20 yrs old) with no bypass. Remember, since all the pumps were designed for front-engine cars with different bracketry & pulley sizes, you will likely have to block off or remove one of the hose bibs on whatever pump you choose; it interferes with a Pantera's stock alt adjustment, so technically, ALL will need some mods. Good luck- J Deryke 
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