[DeTomaso] brass ring under thermostat needed or not

[Pantdino]

I agree with Charlie.
When the car is moving you're OK, when it is not it starts to get hot.

My car was doing exactly the same thing and replacing the stock fans with Meriah (sp?) fans with ball bearings (for low friction) and larger fan blades cured the problem. 

The post about the water pump vanes being corroded and thus not moving enough coolant when the engine is spinning faster could be true, too, I suppose, but then you'd expect that if you rev the engine with the car sitting still the temp will come down again.

If it's the airflow problem the car will heat up even faster, which is how I found my problem.

Jim Oddie


-----Original Message-----
From: Charles McCall <charlesmccall at gmail.com>
To: LEVITT1946 <LEVITT1946 at aol.com>; detomaso <detomaso at poca.com>
Sent: Sun, Jul 21, 2013 9:08 am
Subject: Re: [DeTomaso] brass ring under thermostat  needed or not


Bob-
What you are saying is that if you have good airflow through the radiator,
then your engine temp is just fine. 

When you slow down and depend on your fans to provide airflow, that's where
you have the problem. 

>From this armchair, you don't have a thermostat problem - it doesn't
overheat when you have airflow. You have an airflow (fan) problem. 

Either your fans aren't working at all, or they are tired and don't move
enough air. IF your fans aren't new, I'd start there. 

Flex-a-lite 220's or something like that is what I installed on my old '72
which did exactly as you mentioned, and with zero other changes I could idle
all day in the desert, et etc

Charles McCall
Raising Pantera Awareness Across Europe
1985 DeTomaso Pantera #9375
http://www.poca.com/index.php/gallery/?g2_itemId=2323


-----Original Message-----
From: detomaso-bounces at poca.com [mailto:detomaso-bounces at poca.com] On Behalf
Of LEVITT1946 at aol.com
Sent: domingo, 21 de julio de 2013 17:53
To: detomaso at poca.com
Subject: [DeTomaso] brass ring under thermostat needed or not

Hello Friends ,
 
I have been battling hi engine temps since I have owned my car.
 
On the open road the car water temp stays steady at about 180. As soon as I 
 pull off the highway , drive in stop and go, etc....the car starts to heat 
up .  About 7 to 8 minutes later the car approaches 240 +. unless the car 
is moving  and the hi temp backs down .
 
I am thinking of removing the brass ring below the thermostat . 
 
I just want to know if anyone has ever done this and does it benefit the  
engine? 
 
I always hear people here say their cars can run all day in the desert and  
the water temp hardly moves if any. I am looking to do the same. 
 
I am going to change the thermostat today to one I just received from  
Dennis Quella. I currently have a 160 thermostat and have had robert shaw
180  
(333-180) in the past and both operate exactly the same.
 
I open the fluidyne petcock and no air comes out. It is always a steady  
flow of anjtifreeze.
 
I also have a 13 lb pressure tank cap .  
 
I also have noticed that at idle my voltage at the battery 12.5 to 13v  . 
raise the idle to 2000 and the voltage moves to 13.75 to 14.
 
I changed the voltage regulator and no change. I have extra grounds and  
even grounded the voltage regulator directly.
 
I am open for any and all ideas.
 
Best,
 
Bob Levitt
    
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