Re: [Chrysler300] Help Joe out

[Ray Jones <hurst300@xxxxxxxxxxx>]

Having now read the other posts, it seems like the adjustment rod may 
be the problem. If not, then start on checking heat sources.
Ray
On Jul 12, 2005, at 10:56 PM, Ray Jones wrote:

> Bottom line is that Millions of cars have been produced with the Master
>  Cyl near the edge of the Exhaust System and it's not a known problem.
>  So..... look harder. A heat shield would work but only hides the real
>  problem. The heat is getting to the Master from somewhere. It could
>  even be that the Engine is getting very hot in that area and not
>  showing it on the Temp Gauge since the sender is near the front of the
>  Engine and the water flow is OK there.
>
>  If all else fails, buy or borrow a Temp Gun which can read the temps
>  without touching. Not very pricy nowadays, and a good investment. Then
>  try to duplicate the problem. Let it sit in the driveway on a hot day,
>  idling, and take readings on both sides of the engine, each Cyl, each
>  exhaust Manifold, the Master Cyl, Brake lines and Rad. and so forth.
>  See if it gets super hot in one area over the others. Record the
>  numbers and watch for a drastic change.
>
>  Water flow, Air flow and Exhaust flow, all can play a part. It could
>  even be the idle mixture/circuits causing the back Cyls to get extra
>  hot at idle but off idle OK.
>
>  Don't ya love a mystery??? Ray
>
>  On Jul 12, 2005, at 8:24 PM, John J. Hertog wrote:
>
>  > Hi Jim Eckert,
>  >
>  >Â Your answer is the one that has made the most sense so far;Â that 
> is
>  > because
>  >Â you personally experienced the exact same symptom as Joe Luciano .
>  > Namely,
>  >Â the broiling hot master cylinder after sitting in a traffic jam on 
> a
>  > very
>  >Â hot day.
>  >
>  >Â Have you ever attempted to touch the master cylinder again, after
>  > being
>  > stuck in traffic on a hot day? I find it 'weird" that a master
>  > cylinder
>  >Â would get that hot, even under those conditions...
>  >
>  >Â By the way, Joe report that there are no exhaust leaks anywhere, 
> and
>  > there
>  >Â are no brake lines anywhere near the exhaust system, everything is
>  > stock..
>  >
>  >Â John Hertog
>  >
>  >
>  >
>  >
>  >Â ----- Original Message -----
>  >Â From: <REckert300@xxxxxxx>
>  >Â To: <chrysler300@xxxxxxxxxxxxxxx>
>  >Â Sent: Tuesday, July 12, 2005 1:09 PM
>  >Â Subject: [Chrysler300] Re: Help Joe out
>  >
>  >
>  >Â >I experienced the same problem that Joe did, under the same
>  > conditions. I
>  >Â > was driving to Carlisle on a very hot day when we were directed 
> to
>  > exit
>  >Â > the PA
>  > > Turnpike due to an accident between interchanges. Traffic was
>  > backed up
>  >Â > and
>  > > just barely creeping along. As I exited on the ramp, I 
> discovered
>  > that I
>  >Â > had no
>  > > brakes. I was able to pull the car off to the side of the 
> ramp.ÂÂ
>  > Since
>  >Â > all
>  >Â > of the brakes had just been completely rebuilt, I was puzzled as 
> to
>  > what
>  >Â > had
>  > > caused the problem. I used the emergency brake to get stopped.Â
>  > After
>  >Â > thinking
>  >Â > about the situation, I concluded that the brake fluid had boiled
>  > and,
>  > > therefore, wasn't operating. I could not touch the master 
> cylinder
>  >Â > without using
>  > > gloves. I decided to wait about a half hour for the engine to 
> cool
>  > and
>  >Â > then had
>  > > some brake. I then pulled off the ramp and stopped at a 
> restaurant
>  > for
>  >Â > lunch
>  > > and to let the engine cool even more. After lunch everything was
>  > okay and
>  >Â > I
>  > > finished the trip without incident. When I reached home, after 
> the
>  > show,
>  >Â > I
>  >Â > rebuilt the master cylinder, blew out the brake lines, and 
> replaced
>  > the
>  >Â > brake
>  > > fluid with synthetic brake fluid. I've had no problems since,
>  > although I
>  >Â > have
>  > > found myself in the same weather conditions. My car does tend to
>  > overheat
>  >Â > easily when it is very hot and I have to drive slowly or stop in 
> a
>  > lineup.
>  >Â > I then
>  >Â > have trouble with the radiator overheating but I have never had
>  > another
>  > > problem with the brakes under those conditions. Hope this 
> helps.
>  >Â >
>  >Â > Jim Eckert
>  >Â >
>  >
>  >
>  >
>  >
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