RE: [Chrysler300] 57 heater control valve
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RE: [Chrysler300] 57 heater control valve



Lindsey,
 
The bourdon tube is a sealed tube about 1/8" thick and is installed in the
air stream path.  It is filled with a gas (probably air I'm not sure) that
applies pressure to a bellows that opens and closes the heater control valve
like a thermostat in your home.  It is designed to maintain a constant
temperature within the car's interior based on what the driver sets it at.
The heater control valve without the tube just maintains a fixed amount of
coolant flow through the heater core, it is not regulated automatically,
only by the fixed setting via the temp control handle.
 
Bob J


  _____  

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of Lindsey Fuller
Sent: Monday, January 19, 2009 6:34 AM
To: Bob Jasinski
Cc: 'Bill Leahy'; 'Chrysler300 list'
Subject: Re: [Chrysler300] 57 heater control valve



Is the boudon tube necessary & what does it do?

Bob Jasinski wrote:

>Bill,
> 
>There are kits available that include the rubber diaphragm that allow you
to
>rebuild the valve. The valve is disassembled by bending the little tabs
>that hold it together, and basically you clean everything up, put in the
new
>diaphragm and reassemble. There are companies that will do this for you
>also, and that may be a simpler way to go.
> 
>New valves are also available, (check NAPA) there are some issues with the
>new valves however. The issues are that they are steel, not brass, and they
>do not include the temperature sensing bourdon tube the originals came
with.
>I would rebuild the original if it were my car, as I have had both and
>prefer the original. Others may have a source for the kit and/or rebuilders
>but you might try looking in Hemmings or Google search. My car is a 300G so
>I can't say for sure the '57s had the bourdon tube, but I'll bet they did.
> 
>Bob J 
> _____ 
>
>From: Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com
[mailto:Chrysler300@ <mailto:Chrysler300%40yahoogroups.com> yahoogroups.com]
On
>Behalf Of Bill Leahy
>Sent: Thursday, January 15, 2009 3:11 PM
>To: Chrysler300 list
>Subject: [Chrysler300] 57 heater control valve
>
>
>
>one of the many things to improve or still fix in the first place is my 
>heater control valve / it leaks badly.
>
>so, i finally have it out of the car and it looks like trouble trouble 
>trouble / rusty and carroded.
>
>are they fixable or do ya replace them suckers?
>
>or do ya block them off and close one eye?
>
>billllllllll in not so sunny kennewick washington 
>
>
>
> 
>
>
>[Non-text portions of this message have been removed]
>
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