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swapping master cylinders
https://slantsix.org/forum/viewtopic.php?t=35558
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Author:  gato [ Thu May 28, 2009 5:38 am ]
Post subject:  swapping master cylinders

i'm doing a disc brake upgrade to an A108 van. i'm using a M/C from a B series van. one of the steel lines seals up fine. the other doesn't.
in the port that does seal there is a ferule just like the original M/C. in the other hole there isn't.
at the parts store where i bought it, they showed me another B model and it has the ferule in both ports. at the same time they try to tell me that M/C's come with or without these ferules.
can anybody confirmed this for me? got any suggestions as to how to get the old one out of my old M/C?

D~~~!

Author:  SlantSixDan [ Thu May 28, 2009 12:48 pm ]
Post subject: 

Geeze. They'll say anything to foist garbage on you and get you out the door. "They come with and without"?!! Bull! There must be a tube seat in both outlets. They only come without if somebody's been sloppy and careless. I am guessing these are "remanufactured" brake cylinders you're buying? If so, you're setting yourself up for trouble; get a new cylinder instead. F

If you are stuck and need to swap the tube seat (and, on the drum brake portion, the residual pressure valve) from one master cylinder to another, see here for how-to.

Author:  gato [ Thu May 28, 2009 9:50 pm ]
Post subject: 

Foist? that's a new one for me. . . .

i paid $98 for it. it better not be rebuilt. poor quality, that i'd buy!

ur little trick to pull the old ferule worked like a charm. . . .
unfortunately, the under lyings between the original A drum/drum M/C and the newer B Disc/Drum M/C are not similar. that idea didn't work. tonite i found the receipt, so i'll run it back to try to get one that will seal.

as usual, ur rite on the mark SSD. . . .

thanx again!

D~~~!

Author:  gato [ Mon Jun 01, 2009 5:33 am ]
Post subject: 

they swapped it out for one WITH the ferule. .. no problem.

now if i can just get the proportioning block swapped out, it should all be a done deal. . . .


D~~~!

Author:  gato [ Mon Jun 01, 2009 9:00 pm ]
Post subject:  nope, not yet. . . .

turns out, the unit they had on the shelf, that looked perfect. . . . .

was used!
apparently never went back to the rebuilder after it was taken in as a core.
now they are telling me thatthere was never an app like i'm asking for , SO> > > >

can anybody give me a part # for a master cylinder from a 73/74 B200 van with disc brakes up front, and drums out back? i am looking for a NON-power application.

i'm following a plan that has been done b4 and has worked successfully for several years.
they guy that assembled this choreography just doesn't have his part #'s available anymore.

HELP!


D~~~!

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