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Post by pceng on Mar 27, 2012 8:19:11 GMT -7
Not sure if this should be in 4gT&T yet. Three identical 4g chassis, definate difference in speed between all three. Noticed wear on large idler gear. Most on slowest and none on fastest. Appearas to be from plate-clip. The armature shaft potrudes from gear most on fastest and least on slowest chassis. Looks like the height of the gear on armature shaft has an affect on how much lift the large idler gets when running. Has anyone noticed this? Or perhaps delt with this. Seems like it could be a significant problem.
tia............PC
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Post by Bananasmoothie1975 on Mar 27, 2012 23:47:01 GMT -7
check the underside of the gear plate clip, the edges are often burred, file smooth and see what happens.
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Post by pceng on Mar 28, 2012 7:20:29 GMT -7
Hey Banana, Think I would have noticed the clip having burs (in handling so often). But checked it anyways since the thought never crossed my mind until reading your reply. I did move the gear lower on the arm shaft on one of the chassis, made a difference right away in ease of gear movment in the gear plate and whole drive train when assembled (incressed the speed also). That was the one that showed the most wear on idler. Looked at the one with less wear on the gear and can't go any lower with gear without binding. Could be a difference in plate thickness but haven't mic'd them yet so can't say for sure. Another thing I noticed was the top of the gear that has no wear, the part ment to hold down second idler is thinner than the others. Can see teeth of gear looking at top. But don't know if that's making any difference or not. In fact it may not be thinner haven't measured them could be different plastic, or dye in plastic.
thanks for the imput...........PC
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