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Slow Windshield Wipers 200

posted by  Don Foster on  Wed Oct 22 08:11 CST 2003
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last visit: Sun Oct 5 11:53 CST 2014
[RELATED]

"...wiper motor makes somewhat of a groaning sound when operating..."

A clue.

Sounds as if a magnet has become unglued from the motor housing. Rumor has it that this problem can be easily repaired (though I've never fixed one).

Disassemble the motor and thoroughly clean out all the grit and dust from years of operation. Clean the loose magnet. Note the glue marks on the outer surface of the magnets and the mating marks on the inside of the case -- these "witness" marks allow you to reposition the magnet is it former location.

Use a good epoxy glue to affix the magnet to the case. Others have reported good luck with JB Weld.

Relube the motor bearings (bushings) and reassemble the motor. Pay attention to the brushes and avoid getting dirt or oil on them or the commutator.
--
Don Foster (near Cape Cod, MA)






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