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1958 ELECTRIC WINDSHIELD WIPER-CLUNK AT END OF BLADE TRAVEL

These mini- techs are being taken from GM's Chevrolet Service News. The Service News publication was providedby GM each month to its service departments. Each month this publication covered persistent problems that service departments might be facing, and provided information on how to fix the problem.

These Chevrolet Service News publications by no means covered all the problems a service department faced with the introduction of each new years models. Likewise our seven mini-techs will by no means answer all the problems.

Your best source for information on repairs and restoration are the Shop Manuals and Assembly Manuals for your year Chevy without these publications you will be working in the dark!


1958 ELECTRIC WINDSHIELD WIPER-CLUNK AT END OF BLADE TRAVEL

If a clunking noise occurs at the end of the blade travel on mode ls equipped with elec tric windshield wiper s, it is probably due to improper adjustment of the armature end-play adjusting screw-Refer to Item 9, Diagram 1. If this adjustment is loose there will be excessive backlash be tween the armature worm gear and the drive gear. The correction proced ure is as follows:

      Remove intake grille assembly
      Right hand linkage rod (upper rod) from drive arm.
      Loosen end play adjustment screw lock nut (Item 8, Diagram1).
      Tighten end play ad justment screw finger tight. Drive arm should move only slightly in either direction.
      Tighten lock nut, install linkage rod and intake grille assembly.
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