Re: [Chrysler300] over heating 392

[Ray Jones <hurst300@xxxx>]

I had much the same problem on my "L". At about 400,000 miles, I noticed
some dripping/seeping. When I checked up on the lift. I could see rusty
freeze plugs. When I removed them there was solid mud behind the plugs. The
mud was the only thing keeping them from leaking. I dug the mud out with
wire through the freeze plug holes. Rooted aroung the water jackets and
suchlike and then flushed with high pressure water through the holes also.

I replaced them with Marine Brass plugs, and haven't had any problem since
Good luck, Ray Jones

> From: paulholm <paulholm@xxxx>
> Date: Sun, 01 Sep 2002 00:04:22 -0500
> To: Dale Slattengren <dale57-300chrysler@xxxx>
> Cc: David Zakarian <arshog@xxxx>, Chrysler Club
> <Chrysler300@xxxxxxxxxxxxxxx>
> Subject: Re: [Chrysler300] over heating 392
> 
> Dale Slattengren wrote:
>> 
>> Good idea to use a 160 thermostat and drill a couple 1/8 inch holes
>> so air does not get traped while filling. Sometimes bad head gasket
>> or cracked head will leave little bubbles coming to the top of the
>> radiator. Good luck
> 
>> David Zakarian wrote:
> 
> Back in the mid 70's this problem in my 392 was ONLY cured by a real
> Good cleaning of the water jacket of the block. It was filled up
> with gunk to the tops of the casting plugs. Knocked out the plugs
> and no water excaped. Crud was fairly hard to remove. DRASTIC
> measures were employed to save this particular motor.
> 
> -- 
> Paul Holmgren
> Hoosier Corps #33, L-6
> 2 57 300-C's in Indy
> 
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