Dans master cylinder

[jmbrodsky@domain.elided]

Dan,

        I hate to have this thread come up again so soon, but:
As the seals inside a master cylinder wear, they still maintin their function as
long as a reasonable pressure is kept on the seal.  They are umbrella seals, 
that are supposed to expand in the cylinder.  Yours were cold, and had been 
sitting so the seals didn't fully seal the bore.  With a firmer pedal force, 
they will normally work percectly.  AutoZone #10-1339, $12.99.  Lifetime.

     -Joel Brodsky
        www.physics.arizona.edu/~jbrodsky

         '76 IHC Scout II Spirit 345/tf727 RE8000, Cibie40s, custom 
                rear tire rack, 6 different color body panels.
                Not much sport, all utility.
         '75 IHC Travelall 150 4wd 392/tf727 Hummer brush guard, 
                3/4T rear springs, Hella Rallye 2000s, Con-Ferr 5x7,
                Class IV hitches front and rear, 3" Exhaust.
                1st Place, Rocky Mountain IH Rendezvous,
                3rd Place, Tulare IH Western Regionals.
         '74 IHC Travelall 150? 2wd 392/tf727 "The 'new' one"
                Factory AM/FM, Cruise, Tilt, AC, Captains Chairs,
                Rblt: Alt, carb, fuel pump, ps pump, water pump, dash,
                seats, rear door, starter, master cyl, what could be left?

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Date: Mon, 21 Dec 1998 19:18:14 -0500 (EST)
From: cookiedan@domain.elided (Daniel Nees)
Subject: brakes

O.K. brake gurues. On my 4 wheel drum, non-power brakes on my 71 Scout
II I have an interesting situation. I left for work this morning at 5:30
AM and as I pulled out of my driveway, my brake pedal sunk all the way
to the floor before the brakes sort-of grabbed. This was this way all
the way to work. I was to busy/lazy to bother with it at work, and as I
left to come home it was the same as in the morning. BUT, on the drive
home the pedal gradually built back up to 'normal' and was fine by the
time I got home. How did that happen? There was no booster to compensate
for anything. I don't know if there is suficient fluid in the resivior,
but I know that the rear wheel cylinders are old and the rear fluid
hasn't been changed since I've owned it because the bleed screws are
rusted shut and I haven't tried to do anything about that either.
    So, what do you think?

Dan Nees
cookiedan@domain.elided

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