[DeTomaso] Overheating Issue

[Asa Jay Laughton]

Mark,

This is a good illustration of we sometimes fall into group-think or 
even simply forget the obvious stuff.  I know one person mentioned 
timing and that was a good point, but we often forget carb tune.  Very 
glad you got it resolved in such an easy manner.  It's like driving a 
new car again I bet.

Asa Jay

Asa Jay Laughton, MSgt, USAFR, Retired
&  Shelley Marie
Spokane, WA
******************************
http://www.racingagainstautism.com
http://www.teampanteraracing.com


On 7/21/2010 21:29, Mark Charlton wrote:
> Hi Guys,
>
> I'm the guy who was at wit's end. I didn't realize Will had posted
> this issue here on my behalf and I thank him and all of you who took
> the time to respond with great ideas and suggestions.
>
> The person I owe the biggest THANK YOU to is my friend, fellow Pantera
> owner and expert problem-solver Bohdan G. He suggested my carb may
> have leaned out and wisely asked when I had last adjusted it. The
> answer did not impress him and he immediately came over and spent the
> evening helping (and teaching) me to adjust the carb. As an added
> measure of safety, I decided to move to a slightly cooler spark plug
> than I had been running. As we were finishing up and doing some
> running tests, one of my fan relays started acting up and we called it
> an evening.
>
> Tonight another friend and car-guy (who is less intimidated by volts
> than I am) came over to trouble-shoot and locate a loose connection at
> the relay. Once all was tightened up, we went for a 45 minute drive
> (low and high-speed areas) and SUCCESS! The car ran like it did when I
> first got it. Strong and no pinging at all, even at the hottest temp.
> Never went over an indicated 195° on the gauge --- WITHOUT using the
> second fan (my '71 has one switched fan, one thermostatically-
> controlled one). When we returned, I left both fans on and let the car
> sit idling for 30 minutes in my driveway and it stayed UNDER 195°.
>
> I also took my new infrared temp sensor and found that the hottest
> part of my heads was 200°. My rad at the hot-in area read 193° when my
> gauge read just under 195° which suggests that the gauge is pretty
> close to accurate in my case.
>
> Anyway, a HUGE thanks to everyone for their input, and ESPECIALLY
> Bohdan for SOLVING my conundrum.
>
> Mark
>
> Mark Charlton
> pantera01826 at rogers.com
>
>
>
> On Jul 18, 2010, at 7:43 PM, wdemelo at cogeco.ca wrote:
>
>    
>> Hey Guys.
>> A friend is at his wits end with the cooling system on his  Pantera.
>> Up until a year ago, his car ran cool (160 hwy and 180 city). It
>> then slowly started to run hotter and hotter ( 230
>> city).
>> So he replaced the rad (fluidyne), pump(elelbrock, dual suckers and
>> new tubes. Things didn"t change. 160 on the hiwaya
>> nd 230 in the city. He then installed a HD Robershaw 180. Same thing
>> except it ran 180 hwy and 230 in the city.
>> He has jacked the back and front up numerous times trying to get any
>> air out. He's about to pull an "Elvis" and shoot
>> the thing.
>> Any suggestions? Asajay, didn't you go through this a while ago?
>> Will
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