Thank you Stan, Rich, and Mark for your input thus far.
Yes, your experience on the piston diameter harmonizes with the
information I have read re: master cylinder selection. The smaller piston
bore in the MC requires less pedal effort and more pedal travel than the
larger 1 1/8"...MC piston bores. The 1" bore MC should be used with the
drum/drum and disc/drum manual setups and is recommended with the manual
disc/disc setups because excessive pedal pressure is required if a large
bore MC is used. The larger bore is suited for power assist disc/drum and
disc/disc if I remember correctly.
Not sure if the 1.032" bore billet aluminum Mopar Master Cylinder requires
nearly the same "reasonable" pedal pressure as the 1" bore cast iron; I
like the plastic resevoir and caps for filling and checking the fluid
levels as opposed to the cast iron MC with metal bar and one-piece metal
cap - too much chance to spill fluid I think as well as residual fluid
dripping down the sides of MC eating the painted MC surface.
Any more information specifically on the billet alum. vs. the cast iron
MC's?
Thanks again,
Gary
----- Original Message -----
From: <chymar01@xxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Tuesday, December 28, 2010 7:39 PM
Subject: Re: Mopar master cylinders - preference?
I'm not sure this will be helpful or not, but I used a 1 1/8"
master(aluminum 2-bolt listed for a '79 Dodge pickup from the local store
for 20 bucks) on my '69 Coronet with a MagnumHP adapter and I have to
practically stand on the pedal to stop it.
When I did my '64 Polara 'vert, I used one with a 1" bore(listed as '81
Mirada also from the local store for 20 bucks) and the same adapter and
it stops very well with much less effort.
I'll be switching the one on the Coronet when I get a chance to the
smaller one.
Mark
----- Original Message -----
From: "Gary Pavlovich" <glpavlovich@xxxxxxx>
To: 1962to1965mopars@xxxxxxxxxx
Sent: Tuesday, December 28, 2010 10:00:00 PM
Subject: Mopar master cylinders - preference?
Hope everyone had a wonderful Christmas.
It is time for me to select a Mopar master cylinder for my four-wheel
manual disc brake Plymouth. I know staying with a 1" diameter MC piston
will reduce the effort needed on the pedal to actuate the manual system
but does anyone have exeperience/suggestions as to which Master Cylinder
is preferred - the Mopar 1 1/16" billet aluminum from the Diff Doctor
($100 with adapter) or the Mopar cast iron unit sold by Master Power
Brake ($89)?
The plastic caps on the billet alum. one seem like less chance of
spilling the caustic brake fluid as opposed to the swing over bar on the
cast iron unit.
Let me know from your experience...
Thank you,
Gary Pavlovich
[Non-text portions of this message have been removed]
----
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[Non-text portions of this message have been removed]
----
Please address private mail -- mail of interest to only one person --
directly to that person. I.e., send parts/car transactions and
negotiations as well as other personal messages only to the intended
recipient, not to the Clubhouse public address. This practice will
protect your privacy, reduce the total volume of mail and fine tune the
content signal to Mopar topic. Thanks!
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and
http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
----
Please address private mail -- mail of interest to only one person --
directly to that person. I.e., send parts/car transactions and
negotiations as well as other personal messages only to the intended
recipient, not to the Clubhouse public address. This practice will protect
your privacy, reduce the total volume of mail and fine tune the content
signal to Mopar topic. Thanks!
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and
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