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Re: 71 Dart Drum brake problems
[Re: savoy64]
#1126291
12/05/11 12:06 PM
12/05/11 12:06 PM
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Joined: Jan 2003
Posts: 75,004
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,004
U.S.S.A.
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Quote:
there have been several articles in different mopar magazines over the years about the propensity of Abody cars to lock up the rear brakes----and if i remember right it was the distribution block problem---bob
Had to do with the rear wheel cylinders being too big , I bought ase set of the smaller ones from Ebooger and installed them in a 67 barracuda convert for a friend , he swapped over to discs and it has an NOS manual disc brake master I got from Bill Rolik , should have bought 2. I put an adjustable wilwood valve in the rear line and no lock up on the rears .
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Re: 71 Dart Drum brake problems
[Re: HemiRick]
#1126292
12/06/11 05:49 PM
12/06/11 05:49 PM
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Joined: Mar 2003
Posts: 4,848
Memphis
HemiRick
OP
master
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OP
master
Joined: Mar 2003
Posts: 4,848
Memphis
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The rebuilt $20 Advance master cyl fixed it for the most part. The car will now lock up the front brakes in gravel where it would not before. Autozone had none of the $14.97 MC....
Weird problem never seen a master act like this in 35 years of fixin cars.
Take care,
Rick
68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
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Re: 71 Dart Drum brake problems
[Re: HemiRick]
#1126296
12/06/11 08:42 PM
12/06/11 08:42 PM
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Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
bobs66440
top fuel
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top fuel
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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Quote:
Quote:
I'd love to dissect that master.
Should have spoke up sooner, Advance got it for the $10 core charge.
Quick! Get it out of the recycle bin! 
Glad it's fixed... 
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Re: 71 Dart Drum brake problems
[Re: bobs66440]
#1126297
12/07/11 05:10 PM
12/07/11 05:10 PM
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Joined: Jan 2003
Posts: 10,968
Hampton, Ga.
70dart360
Green Meister
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Green Meister
Joined: Jan 2003
Posts: 10,968
Hampton, Ga.
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Bet it was full of rust. The rears activate first and if the front brake side had a clogged hole or something, it'd have pressure on the pedal cause the fluid cant move, but will not work the front brakes. Seen it a few times.
70 Dart Swinger
72 D-100 440 shortbed
76 Pinto, 68k 21mpg!
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Re: 71 Dart Drum brake problems
[Re: 70dart360]
#1126298
12/07/11 05:17 PM
12/07/11 05:17 PM
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Joined: Mar 2003
Posts: 4,848
Memphis
HemiRick
OP
master
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OP
master
Joined: Mar 2003
Posts: 4,848
Memphis
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The fluid in it was full of rust. I've flushed the system as well.
Take care,
Rick
68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
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Re: 71 Dart Drum brake problems
[Re: 70dart360]
#1126299
12/07/11 06:41 PM
12/07/11 06:41 PM
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Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
Rick_Ehrenberg
top fuel
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top fuel
Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
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Quote:
Bet it was full of rust. The rears activate first and if the front brake side had a clogged hole or something, it'd have pressure on the pedal cause the fluid cant move, but will not work the front brakes. Seen it a few times.
Actually, the primary piston moves first, activating the front brakes and (hydraulically) moving the secondary piston, which, in turn, pressurizes the rear brakes.
Hard to imagine 1000 PSI not pushing past any hose defect.
Rick
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