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Must be Master Cylinder?
https://slantsix.org/forum/viewtopic.php?t=18167
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Author:  Slanted Opinion [ Wed Jun 21, 2006 5:27 pm ]
Post subject:  Must be Master Cylinder?

Hi folks,

Finally got the air out of my braking system (9" drums x4, '68 Dart 270).

Now I have an intermittent problem... sometimes the brake pedal will slowly descend to the floor while sitting at a stoplight.

I just put a refurbished :( master cylinder on it a few months ago. But IIRC this is a symptom of a bad master... am I right? There is no leakage of fluid in the system.

-Mac

Author:  SlantSixDan [ Wed Jun 21, 2006 5:38 pm ]
Post subject: 

Yep, almost certainly bad master

Author:  Charrlie_S [ Wed Jun 21, 2006 7:22 pm ]
Post subject:  Re: Must be Master Cylinder?

Quote:
Hi folks,



I just put a refurbished :( master cylinder on it a few months ago. But IIRC this is a symptom of a bad master... am I right? There is no leakage of fluid in the system.

-Mac
Another quality rebuild from A-1 Cardone?

Author:  Jeb [ Wed Jun 21, 2006 7:25 pm ]
Post subject: 

Might be an "Ultima".

Author:  Slanted Opinion [ Thu Jun 22, 2006 4:35 am ]
Post subject: 

This one came from Napa, but I don't remember who remanufactured it.

Author:  74.swinger [ Thu Jun 22, 2006 4:37 am ]
Post subject: 

Convert to the late model 2 bolt aluminum master cyl and you wont have any more problems.
________
Ferrari 250 gto
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Motorcycle Tires

Author:  SlantSixDan [ Thu Jun 22, 2006 7:39 am ]
Post subject: 

His '68 Dart already has a twin-pot master cylinder. Also, twin-pot master cylinders are prone to problems, just like single-pot master cylinders.

Author:  Joshie225 [ Thu Jun 22, 2006 7:44 am ]
Post subject: 

Quote:
Convert to the late model 2 bolt aluminum master cyl and you wont have any more problems.
Not true. If the original annodizing is gone they can corrode and fail quickly. Also many people have had spongy pedal problems with the AL master. Once I get my Swinger back on the road I hope I'm not one of them.

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