[Chrysler300] Re: ??????

["Gary Holm" <gholm@xxxxxxxxxxx>]

Not to long ago someone mentioned that we should always run with a 
thermostat.  I' m now running without one and wonder if or what damage might 
be happening..  The reason I do, is after running and getting up to running 
tempature the radatior  always dumped about a quart of fluid when I would 
stop. The gauge read normal.  Then I tried drilling a small hole in the 
thermastat as a bypass. Still dumped, so than I took the thermosat  Out and 
it has never run better." If it ain't broke ,don't fix it."  Does this apply 
here or do I need to do something else.  This is a 61 300 HP engine  Gary 
Holm  with a big G  wanting to drive to Tahoe
----- Original Message ----- 
From: "John J. Hertog" <crossram@xxxxxxxxxxxxx>
To: <chrysler300@xxxxxxxxxxxxxxx>
Sent: Monday, July 11, 2005 3:08 PM
Subject: [Chrysler300] help Joe out


> For the second time, Joe Luciano has lost his brakes - entirely - while 
> driving his '62 300 convertible.  This is getting both very annoying and 
> very dangerous. Can anyone help Joe ?  I personally have never encountered 
> the exact problem that he is experiencing, but perhaps one or more of you 
> have?
>
> The car is a '62 300 Sport convertible; it is using the original 
> single-reservoir mater cylinder. Up front, the brakes have been changed to 
> 1964/1964 Bendix-type drum brakes from a 64 300  (that should not matter) 
> . Other than that, everything is stock.
>
> First time Joe lost his brakes, he was driving in heavy traffic on a hot 
> day, coming back from a show.  When he called me and described what 
> happened  (pedal first got hard, then disappeared entirely, went right to 
> the floor) , I (wrongly) assumed it was a bad master cylinder and told him 
> to change it.  Which he did.
>
> Second time: same scenario, with the new master.  After driving the car 
> for a few hundred miles, from NYC to Carlisle PA  and back, with no 
> problems, Joe once again hit traffic, on a hot afternoon. After crawling 
> along for awhile, the pedal started to feel "funny"  and then, boom, no 
> more brakes at all.
>
> This time, however, Joe opened the hood, and noticed that the master 
> cylinder "looked" hot.  So he threw some water on it, and the water 
> sizzled off the master cylinder like it was an exhaust manifold.  And 
> again and again, just kept sizzling.
>
> So - I now assume (?) that the master cylinder is getting so hot that the 
> brake fluid starts to boil, and that is what is causing brake failure. 
> However - what I don't understand is, why is the master getting so hot?  I 
> mean, it's hot under the hood, but not THAT hot, and the engine is not 
> overheating, so why is his master cylinder getting so hot that it 
> percolates the brake fluid?   Been driving these cars for years, never 
> seen that one yet.  Anyone else?
>
> Looking forward to your repsonses,
>
> John Hertog
> Sag Harbor NY
>
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> [Non-text portions of this message have been removed]
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