[DeTomaso] Subject: LAYDOWN OR STRAIGHT UP RADIATOR

[Bill Moore]

What am I missing ? 
Why not use a Ford thermostat "designed" for a 351C engine ? 


Cheers,

Bill
Calgary

-----Original Message-----
From:	asajay at asajay.com
Sender:	detomaso-bounces at realbig.com
Date:	Mon, 26 Mar 2012 16:43:55 
To: <detomaso at realbig.com>
Subject: Re: [DeTomaso] Subject: LAYDOWN OR STRAIGHT UP RADIATOR

Um... yea... perhaps I should have said that.  Although I don't have  
photos I can reference, the thermostat I installed -does- have holes  
drilled for circulation while the thermostat is closed.  It was done  
for just this reason, and it gives a little bit more flow when the  
thermostat is open all the way.

Thanks for the reminder Mike,
Asa Jay

Quoting MikeLDrew at aol.com:

>
> In a message dated 3/26/12 14 16 56, asajay at asajay.com writes:
>
>
>> and after installing a freeze plug (press fit) in the hole so a normal 
>> thermostat can be used.  Note this removes the bypass function and 
>> leads to longer warm-up times.
>>
>
> It does much more than that.   What it means is that (unless you have
> drilled holes in your thermostat), you have ZERO water movement   
> inside the engine
> until the thermostat opens.   When the engine is cold, you start it up and
> the pump is just churning away, cavitating because the water can't go
> anywhere.   As the engine heats up, because there's no flow, it   
> heats up unevenly,
> potentially allowing steam pockets to form.   Eventually the coolant warms
> up enough (via internal heat radiation) that the thermostat can open, then
> WHAM!   A blast of icy cold water from the radiator comes pouring into your
> steaming hot engine.   It runs around and hits the thermostat, and WHAM!   It
> slams shut, and the whole process repeats.
>
> The engine is subjected to repeated super-hot-super-cold cycles until
> eventually the coolant is warm enough to keep the thermostat open   
> all the time,
> and then eventually it reverts to normal operation.   But think of the
> thermal stress that you're subjecting the engine to!   And for what?  
>    So that you
> don't have to run a 351C thermostat?
>
> Makes no sense to me....
>
> Mike
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