Re: [Chrysler300] '64 Brake MC/Booster Question

["Kelly Pierce" <jkrestor300@xxxx>]

Terry and Group-
This one got my curiosity up so I just went out and looked at the 5 64
Chryslers I have here at home.
K hardtop, build date 9/12/63 Midland Ross unit, no plug on M/C 413 engine
300 sport 4 dr. parts car-2/13/64 Same, has plug on bottom of M/C 383
2barrel Newport/300"one of
none" wagon- Midland Ross, no plug 361 2 barrel(for now)
300 Sport 2drht. Same, has plug on bottom of M/C 383 2 barrel
K hardtop, Kelsey Hayes unit, no plug 413 engine
Now- the Service Technical Manual doesn't even list a Kelsey Hayes unit! I
have owned the car since 1982, never changed the booster, looks to be
original. None of the photos in the manual show a master cylinder with the
"extra" plug like 2 of mine have. Neither one of the K's are ram cars, so
the remote booster does not come into the equation.
It doesn't appear that there is any real pattern here that I can see.
Any one out there got a answer for Terry? It would appear that all my
investigation has done is muddied the waters! The factory parts manual
lists ONE booster for the 64 Dodge 880, Newports, 300 & 300K non ram and the
New Yorker-2525428. The master cylinder shows the same part number for ALL
64 Chrysler products with power brakes (except ram K) 2275519.
Joe Pierce 300J+Kx3+M+ others.....
----- Original Message -----
From: "Terry Town" <terrytown@xxxx>
To: "300 List Posts" <Chrysler300@xxxxxxxxxxxxxxx>
Sent: Tuesday, May 20, 2003 2:44 PM
Subject: [Chrysler300] '64 Brake MC/Booster Question


> I'm confused and hoping someone can help me out. I have a '64 300 Sport
with a 383 and power brakes. I need a new brake master cylinder, so the
local NAPA sells me one. NAPA part # 10-36706, it looks very similar to the
existing one, but has an additional downward pointing outlet just under the
regular horizontally pointing outlet. The second outlet is capped off with a
plug, so I figure that the unit will still work fine. When I got the old
master cylinder off I compared the two. The NAPA one has a casting number on
the bottom of the unit of 2265634. My old one has a casting # of 2265633.
Hmmmm. I then noticed that the receptacle depths for the pushrod in the back
of the MC piston are different between the two MCs. The NAPA one is about
.95" deep and my old one is 1.25" deep. I thought that maybe it's as simple
as adjusting my pushrod shorter, so it doesn't stick out as much from the
power booster unit. I looked in the factory service manual for adjustment
info and here is where I got really confused. My power booster visually
appears to be a Bendix Dual Diaphragm type, and the FSM clearly states that
these are for Imperials only. (It also says to NOT adjust the pushrod)
>
> Did 300 Sports come with the Bendix dual diaphragm unit? If so, does
anybody know a NAPA part # for the proper MC to use with this booster unit?
Or do I need to just adjust the pushrod in about .3"?
>
> If the booster unit isn't the proper one for the car, I'd like to replace
it with the proper one. Any thoughts on where these might be available, part
numbers (NAPA or otherwise) to ask for, etc.
>
> Any help from the group would be appreciated.
>
> Thanks,
> Terry Lynch
> St. Petersburg, FL
>
> [Non-text portions of this message have been removed]
>
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