RE: [Chrysler300] 375 Troubled Horses

["Rich Barber" <c300@xxxxxxx>]

Keep in mind that without a properly-functioning overflow container that is
designed to hold the heated and expanded coolant and then return it to the
radiator as it cools, the radiator will have to puke out any excess volume
from heating and never recover it.  So, when cold, the coolant in the
radiator tank will appear to be down an inch or more.  Topping off at this
point will result in more volume overflow next time it gets hot.  

 

You can bet there is some boiling going on at the hottest points of the
water jackets and heads until the boiling action and natural coolant flow
due to temperature variations in the system cools the iron down.  The high
temperatures also causes some breakdown of the glycol coolant.  That's where
some of the black crud in the overflow bottle comes from and is one reason
to periodically drain, flush and refill the system with fresh coolant-water
mix.

 

Rich Barber

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of Bill Huff
Sent: Tuesday, August 16, 2011 4:26 PM
To: christopher beilby; kboonstra300; lorencnelson@xxxxxxxxxxx
Cc: chrysler300@xxxxxxxxxxxxxxx
Subject: RE: [Chrysler300] 375 Troubled Horses

 

  

If the system lost pressure due to a leak or bad cap, it would lose 
it both after a run down the road as well as after idling. Doesn't 
sound the solution to me. Also, if it was a leak, it wouldn't come 
out the overflow tube.

Bill Huff

>1) Someone else has already suggested what it sounds like - namely 
>that the system has lost pressure after turning off - and with no 
>pressure, it boils due to masses of heat coming out of large volume 
>of hot cast iron etc !!?
>





[Non-text portions of this message have been removed]



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