[DeTomaso] Subject: LAYDOWN OR STRAIGHT UP RADIATOR
Kirby Schrader
kirby.schrader at gmail.com
Mon Mar 26 20:25:39 EDT 2012
Ahhhh.... You have just become an advocate of the remote thermostat gang without even knowing it!
:-)
On Mar 26, 2012, at 5:59 PM, MikeLDrew at aol.com wrote:
>
> 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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