[DeTomaso] water pump recommendations

[wkooiman at earthlink.net]

I have the Milodon.  It has the backing plate on the impeller.  The impeller is stamped from steel - not curved vane.  It has the warm-up passage.

It is very light - almost too light.

There was a nipple for the heater.  I cut it off and installed a plug.  It doesn't leak.  It didn't crack when I cut threads for the plug, but as light as it was, the thought crossed my mind.

I haven't had any issues with it.  I didn't have cooling problems before or after.

-----Original Message-----
>From: JDeRyke at aol.com
>Sent: Nov 14, 2007 11:56 PM
>To: Pantdino at aol.com, detomaso at realbig.com
>Subject: Re: [DeTomaso] water pump recommendations
>
>I use the Weiand 8209 aluminum pump. It weighs about half of a stock iron 
>pump. It has a less efficient pump impeller than the curved-impeller Boss 302 
>unit, and has no backing plate. Adding a backing plate to the pump did absolutely 
>nothing toward lowering engine temps. But the pump has lasted 20 years on our 
>car, thru two engines and 50,000 miles. I lost a stock iron unit in 20,000 
>miles. High volume pumps likely have such a backing plate, which theoretically 
>increases efficiency. On the Weiand anyway, it did nothing visible.   The 
>Weiand has one weak spot: there are two heater-hose bosses on the pump body, and 
>the upper one (which cannot be used due to the alternator being too close to it) 
>is thin and will crack if a fitting is overtightened in it.
>The famous Boss 302 pump as sold since the '80s by Ford is a cast iron 
>impeller that gets pressed into other housings that it wasn't designed for & may not 
>fit very well. Two members lost such assembled pumps at the open track in 
>'Vegas this year. The Weiand also has no warm-up bypass passage for quick 
>warm-ups while the Mildon does. Not sure of the others. 
>Good luck- J Deryke
>
>
>
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