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Elite Veteran
Posts: 689
  
Location: Santa Barbara, California | Hi Everyone, Fluid won't stay in master cylinder, but can't find a leak ANYwhere in system... all lines dry, no leaks @ wheel cylinders, I'm baffled on this one. Any suggestions / thoughts as to where to look / what to look for? Power brakes on this car, canister type power assist. Pedal just goes to floor. Several months ago would leak down a little fluid each month or so, but a top off would take care of it. The car sat for 10 days a few weeks ago while I was out of state, and when I got back, nothing on the pedal. Thanks! bryan
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Expert
Posts: 2679
| Bryan1960Windsor - 2010-06-01 5:23 PM
Hi Everyone, Fluid won't stay in master cylinder, but can't find a leak ANYwhere in system... all lines dry, no leaks @ wheel cylinders, I'm baffled on this one. Any suggestions / thoughts as to where to look / what to look for? Power brakes on this car, canister type power assist. Pedal just goes to floor. Several months ago would leak down a little fluid each month or so, but a top off would take care of it. The car sat for 10 days a few weeks ago while I was out of state, and when I got back, nothing on the pedal. Thanks! bryan
Well it must be leaking somewheres.... look under the dash where the brake pedal rod goes through, could be leaking there.... the master cylinder probably needs to be rebuilt. The rubber seals go soft and leak. I had that happen in my 51 Buick, rebuilt it and it was like new. |
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Elite Veteran
Posts: 689
Location: Santa Barbara, California | I suspected master cylinder. That's the first place I'll start. Thanks for reinforcing~! bryan |
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Expert 5K+
Posts: 7808
Location: Williams California | I'll second Greg's thoughts on this.
---John |
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Extreme Veteran
Posts: 421
Location: N. Georgia | Ditto, ditto. The internal piston in the master is shot so the fluid just blows past and back into the reservoir. |
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Member
Posts: 7
| I woulld say since it is power brake car it is sucking the fluid into the engine thru the vacuum line |
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Elite Veteran
Posts: 689
Location: Santa Barbara, California | Thanks guys! appreciate it! now, all i need is TIME! bryan |
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Regular
Posts: 52
Location: nasco, falkoping | like tucky man say, i had that problem on my -59 windsor, there was a aftermarket powerbreak( bendix) on it. it suck all breakfluid in to vacuumline. I remove it, all prblems gone. |
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59 Windsor, no brakes, what's going on?!?!
