[DeTomaso] Bypass (Re: thermostats)

[JDeRyke at aol.com]

In a message dated 6/24/09 8:34:43 AM, asajay at asajay.com writes:


> Okay, so if a person uses a remote bypass thermostat, what do you do with 
> the thermostat area in the block?  There is a bypass passage where the 
> thermostat goes which the -special- 351C thermostat closes when the stat is 
> fully open.  So do we block that?  Or must you make the water pump mod 
> instead, which installs a small shim of steel to block the recirculation path?
> 
Some guys drop a 3/8" freeze plug in the brass washer below the thermostat 
while others replace the stock iron waterpump with a Weiand 8209 which has 
no bypass channel and is half the weight of the stocker. Not all aftermarket 
pumps are like this- some aluminum pumps still have the bypass channel, and 
two Nor-Cal members tapped the bypass in their aftermarkets for a pipe plug. 
I can recommend the Weiand- its been able to soak up all the abuse I've 
thrown at it since 1992 with no trouble. Other brands- including the stocker- 
don't have that sort of record. My 2¢- J Deryke



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