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Red Sox to the Marrow
 
Join Date: Dec 2010
Location: Charleston, SC
Posts: 19
Garage
? master brake cylinder

very novice question. i have a '81 sc with 60k miles in very good shape. I recently took her out for the spring. I noticed the brake pedal is soft for the first 1/2 of depression. Does this seem like master cylinder and is this a repair for a relative novice? Thanks for any suggestions

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'81SC Targa guards red
Old 03-16-2013, 09:12 AM
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Jdub's Avatar
 
Join Date: Nov 2000
Location: Great NorthWest
Posts: 3,950
You say that you notice this, which means it seems different from your pre-storage state? If so, I think you first perform a brake bleed and then exercise the car (and the brakes, seals, etc. that benefit from brake fluid saturation) by taking it for regular drives. A MC will eventually wear out by age and not miles so do be aware of this as you work with your brake system. I do not want to dismiss any component for the sake of safety here.

EDIT: Often the breakup of rubber inside the flexible brake lines at each wheel will prevent full retraction of the pad, and a soft feel at the pedal. You might replace these before you bleed the system.
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Last edited by Jdub; 03-16-2013 at 11:28 AM..
Old 03-16-2013, 10:21 AM
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Join Date: Jan 2011
Location: Portland, OR
Posts: 2,945
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Flush, replace fluid and bleed - every year. One of the cheapest and most important safety / performance maintenance items you can do.
-C

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Bone stock 1974 911S Targa.
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Old 03-16-2013, 11:05 AM
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