[DeTomaso] Subject: LAYDOWN OR STRAIGHT UP RADIATOR
Bill Moore
Bill at incendium.com
Mon Mar 26 20:04:13 EDT 2012
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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