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Pulled, disassembled and cleaned my headlight motors. I have a question regarding the drive gear - it has the nylon washer on one side, and the flat and curved washers on the other. When assembled, the curved washer puts a lot of tension on the drive gear. Can someone tell me why this is so? My (uninformed) logic would think that free movement of the gears would be a good thing - but that curved washer sure binds things up. I will reassemble it as built, lather it up with lithium grease and reinstall - but I was just looking for the reason behind the design. Thanks in advance.
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Re: C2 - headlight motor rebuild question
The curved spring washer is to take up tolerances of the piece parts so as to eliminate slop. You can custom assemble using custom made hard stainless shims to give the exact end play to the system. Worm gears should run with very minimumal back axial lash clearance. Shoot for .001-.002". True it will eliminate some load on the motor. -
Re: C2 - headlight motor rebuild question
The curved spring washer is to take up tolerances of the piece parts so as to eliminate slop. You can custom assemble using custom made hard stainless shims to give the exact end play to the system. Worm gears should run with very minimumal back axial lash clearance. Shoot for .001-.002". True it will eliminate some load on the motor.Comment
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Re: C2 - headlight motor rebuild question
Thanks, Gene. That makes sense. As far as re-assembly goes, they have worked pretty well over the last 40 years as built. I'm not going to mess with success. I'll spin the drive gear around 180* to use the "fresh" side and back they go. Thanks again, Thom.Comment
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Re: C2 - headlight motor rebuild question
Thanks, Gene. That makes sense. As far as re-assembly goes, they have worked pretty well over the last 40 years as built. I'm not going to mess with success. I'll spin the drive gear around 180* to use the "fresh" side and back they go. Thanks again, Thom.Comment
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