[DeTomaso] Overheating remedy suggestions welcome...

[asajay at asajay.com]

Sounds like a blockage to me.

Asa jay

Quoting Tom Di Iulio <tomdiiulio at gmail.com>:

> hello all,
> some of you may remember that my original overflow tank finally rusted thru
> while i was at the big bend race in april. with the help of mike frazier and
> john taphorn (and another GT40 owner whose name escapes me), the bottle was
> patched and i ran the race with no issues.
> since i've been home, the car has begun running hotter with this past week
> finally being a show stopper.
> here's what i have done or know so far...
> 1. when the engine is smokin' hot, the radiator is ambient temperature. the
> fans do not come on (they wouldn't 'cause the rad never heats up).
> 2. i removed the thermostat and watched it open and close in alternate bowls
> of hot and cold water. i have also run the car w/o the thermostat and the
> radiator is still cool and the engine is overheating.
> 3. i removed the heater hose from the top fitting on the original water pump
> and stuck a wire down the hole to confirm the impeller blades are turning
> when the pulley is turned via the belt.
> 4. while conducting the test this morning to see what's what, i noticed a
> small trail of water boiling out of the area where the intake manifold,
> passenger side head, and block come together. this
> may be a result of overheating the last couple days, not sure.
> 5. the oil has been checked and is fine. level is good and no indication of
> water and oil mixing.
> 6. when the overflow tank blew in ft stockton, the amount of water used to
> refill the system was not as much as i would've guessed based on the amount
> of coolant on the ground. i have refilled the refill tank twice since then
> which includes this morning. there are no leaks of coolant under the car.
> 7. the aluminum radiator (from quella) was installed by me a week prior to
> the big bend race and was functioning as expected until the overflow tank
> blew. i also had the system power flushed by a local shop to remove any old
> coolant and/or debris in an effort to protect the small cooling tubes from
> blockage in the new radiator.
> guys, i'm at my wit's end...not sure what else to inspect. i understand i
> may now have to replace a head gasket but i think that's a result of the
> overheating, not the cause......although i've been wrong before.
> comments/advice?
>
> tom di iulio
> denver, co
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