Re: [Chrysler300] 375 Troubled Horses

[Keith Boonstra <kboonstra@xxxxxxxxxxxx>]

Well, here's the morning-after report.  I had the cap tested this 
morning and it is dead on 14 #, so we're OK there.  There is about 
2-3/4" of tank between the core and the filler neck.  The engine is cold 
now, of course, and I'm showing 3/4" of coolant and 2" of air in the top 
tank.  This overflow situation has only occurred once so far, so if I'm 
lucky (a pretty rare thing for me these days) the system is now down to 
the amount of coolant it wants.  I'll do a little watchful waiting.

One thing I didn't think of doing at the time was to see if the fan 
clutch was stiff when the radiator was overflowing.  I presume I should 
be able to feel that it is with the engine shut down while hot.  I will 
make it a point to check that the next time I have it heated up.

Thanks to all.
Keith Boonstra

-

On 8/16/2011 11:01 PM, George McKovich wrote:
>
> My 300C coupe has never overheated but it will always kick out about 
> 3/4 to one inch of coolant after it has been filled to the top. That 
> usually happens the first or second time it is run for a while at 
> normal operating temps. I do not re-add the different and just drive 
> it without it throwing any more out and without overheating even a 
> 100+ degree days and also at altitudes up to 9,000 feet above sea 
> level. I have always figured that is just one if the quirks with the 
> hemis. I have aftermarket a/c running an RV2 compressor, 6 blade fan, 
> non-thermal clutch and a 14 pound cap.
>
> George
>
> Sent from my iPhone 4
>
> On Aug 16, 2011, at 7:34 PM, "Henry Schleimer" 
> <henry.schleimer@xxxxxxxxxxxxxxx 
> <mailto:henry.schleimer%40optusnet.com.au>> wrote:
>
> > Rich is right in that a full radiator will always expel water, 
> especially
> > when shutting down. Top up if the core is showing but otherwise 
> leave room
> > for the water to expand.
> >
> > Henry Schleimer
> >
> > From: Chrysler300@xxxxxxxxxxxxxxx 
> <mailto:Chrysler300%40yahoogroups.com> 
> [mailto:Chrysler300@xxxxxxxxxxxxxxx 
> <mailto:Chrysler300%40yahoogroups.com>] On
> > Behalf Of Rich Barber
> > Sent: Wednesday, 17 August 2011 10:23 AM
> > To: 'Bill Huff'; 'christopher beilby'; 'kboonstra300';
> > lorencnelson@xxxxxxxxxxx <mailto:lorencnelson%40comcast.net>
> > Cc: chrysler300@xxxxxxxxxxxxxxx <mailto:chrysler300%40yahoogroups.com>
> > Subject: RE: [Chrysler300] 375 Troubled Horses
> >
> > 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%40yahoogroups.com> 
> <mailto:Chrysler300%40yahoogroups.com>
> > [mailto:Chrysler300@xxxxxxxxxxxxxxx 
> <mailto:Chrysler300%40yahoogroups.com> 
> <mailto:Chrysler300%40yahoogroups.com> ]
> > On
> > Behalf Of Bill Huff
> > Sent: Tuesday, August 16, 2011 4:26 PM
> > To: christopher beilby; kboonstra300; lorencnelson@xxxxxxxxxxx 
> <mailto:lorencnelson%40comcast.net>
> > <mailto:lorencnelson%40comcast.net>
> > Cc: chrysler300@xxxxxxxxxxxxxxx 
> <mailto:chrysler300%40yahoogroups.com> 
> <mailto:chrysler300%40yahoogroups.com>
> > 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]
> >
> > [Non-text portions of this message have been removed]
> >
> >
>
> [Non-text portions of this message have been removed]
>
> 


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



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