Description

This article is from the VW Technical FAQ, by with numerous contributions by Jan Vandenbrande others.

75 Problems with rear drum brake lock up?

A: This can have many causes:
- Out of round drums. Have them turned or replaced (easy, cheap)
- Change shoes
- Out of adjustment or self adjusting mechanism not functioning right
- Handbrake cable out of adjustment
- Proportioning valve out of adjustment or faulty
- Incorrect cylinders installed (17mm vs 14 mm, they look very similar but
make a 40% in brake pressure!)
- Faulty master cylinder.

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