Re: [DML] cooling problems

[mike.griese@xxxxxxxxxxxxxxxx]

Fix the leaks first - always.  You can't debug cooling 
problems if there is a breach in the system.  The leak
will allow air into the system and cause localized 
hot spots in the upper regions of the block - right
where you don't want them.

There is a difference between an otterstat and a thermostat.
The thermostat controls the flow of coolant in and out
of the block.  It is closed while the engine is cold
to keep the heat in the block.  This helps combustion 
efficiency.  When the block reaches operating temperature,
the thermostat opens, allowing coolant to flow to the
radiator.  You can see this if you watch your temperature
gage.  

The otterstat is a thermal switch.  It closes when it 
senses heat, and opens when it cools off.  This switch
is what controls the fans - when the coolant gets hot
enough, the switch closes, turning on the fans.  When 
the coolant temperature drops, the fans turn off.

--
Mike




> 
> Thanks, Jim.   My guess, based on the last two POs, is that they will 
> need replaced.  Call it a strong hunch.   I bought the car assuming 
> that.
> 
> Speaking of the last POs, you all know Sean, but does anyone know 
> of Adam?  He lived in San Diego and had the car seviced at Garden 
> Grove?  
> 
 next week. 
> 
> I do have another question  - is there a difference between a 
> thermostat and an otterstat?  
> 
> Thanks once again for your collective help.
> 
> .....................LP
> 10440
> 



To address comments privately to the moderating team, please address:
moderators@xxxxxxxxxxx

For more info on the list, tech articles, cars for sale see www.dmcnews.com

To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
     http://groups.yahoo.com/group/dmcnews/

<*> To unsubscribe from this group, send an email to:
     dmcnews-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
     http://docs.yahoo.com/info/terms/