[DML] Re: Cooling System Problems (DMC Joe's Overheat Protector)

["content22207" <brobertson@xxxxxxxxxxxx>]

Is this earlier "overheat protector" what most of us now call a "self
bleeder"? Latter seems to be becoming standard equipment on many
DeLoreans (even the Sunstar model has one!). I like it for the very
reason you mention -- automatically bleeds the system after coolant
change without messing with the brittle radiator barb. Another useful
mod I've found is to re-route the radiator bleed hose UPHILL to a Tee
in the heater core return line rather than DOWNHILL to the radiator
return line (because I replaced that aggravating piece of bent pipe,
which also rubs epoxy off the crumple extension, with a length of
contiguous hose, routing the bleed line somewhere else was necessary
-- might as well do it so air doesn't get trapped).

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "Joe LoRe" <dmcjoe@xxxx> wrote:
> 
> 
> You are missing the point. As you mentioned, if every component in 
> the cooling system is operating at spec and there are no leaks at any 
> of the components that connect to the cooling system than there is no 
> need for an air bleed device at the thermostat. Unfortunately in the 
> real world this is not always the case. When you consider the number 
> of connections and components in the cooling system sooner or later 
> there will be a leak. Any leak in the system will cause air to be 
> drawn into the system which will eventually collect at the thermostat 
> leading to an engine overheat condition. 
> 
> It's easy for people like yourself, who can easily diagnose, replace, 
> and maintain the components you mentioned. Unfortunately for many 
> owners, especially the ones that are distant from knowledgeable 
> service centers or don't service their own cars a loose clamp could 
> cause an owner to be stranded in his DeLorean. Worse yet engine could 
> suffer permanent damage
> 
> You when you said "The BIG problem is too many cars don't have
> a tight cooling system." You're exactly right; that is why the 
> Overheat Protector is such a valuable item.
> 
> The overheat protector is safety device and does just what it says; 
> it will prevent the engine from going into an overheat condition if 
> air is drawn into the system. The side benefit of the device is that 
> it eliminates the need to manually air bleed the cooling system. 
> 
> DMC Joe
> 









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