ZipZaps Rear Axle Slot Repair
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This is by far the easiest method for repairing the rear axle retaining slot on
a ZipZaps chassis when it has worn to the point of the axle falling out
(causing the gears to mesh improperly). The only drawback to this specific
method is that it is permanent, you can NOT remove the axle once the repair is
complete.

1 - Obtain a fairly thick paperclip.

2 - Cut out a small straight piece of the paperclip a half an inch long using a
    pair of wire cutters or side cutters.

3 - Install the axle of your choice into the worn axle retaining slot, as well
    as it's matching idler gear. Keep in mind, the axle can NOT be removed
    after this repair is completed, so select your axle and idler gear
    carefully.

4 - Slip the piece of the paperclip over the axle in the retaining slot, and
    center it left to right on the chassis.

5 - Apply J-B Weld over the middle quarter of an inch of the paperclip, filling
    the retaining slot flush with the bottom of the chassis.

6 - Allow the J-B Weld to cure (usually overnight).

7 - Paint the JB-Weld and paperclip black, or simply use a permanent black
    magic marker.

Although you can never remove the axle and idler gear ever again, this is
pretty much a permanent repair... the axle will NEVER fall out again, and the
gears will always mesh properly -:)


Rich „Weeds„ Nagel
RichNagel@compuserve.com