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How To: Repair of your 6x6 Photos, Vidoes and Guides, please no questions
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Coot, EAGLE and ALSPORT TRACKER Transmission
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New first gear in Coot
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Topic: New first gear in Coot (Read 11652 times)
Allwheeldrive
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New first gear in Coot
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Reply #1 on:
September 13, 2017, 10:40:03 AM »
Got my new 1st gears from WhipperAG / Apache Gear Inc. for the Coot. Super high quality.
Pictured new vs old and installed. You can see how I have changed the design to be much more beefy. I took the risk of increasing the wall thickness of the collars (Plus adding a 2nd). I measured with shims how much room I had to work with and split the difference for a few thousands of clearance. Everything seemed to run smoothly but once I installed the roll pin the gear lost what clearance it had and meshed with the big 1st gear when in 2nd as can be seen in the zoomed in photo. I sanded some material away but it seems like it’s more a function of slop in the entire transmission that’s doing it more than anything as the same teeth and spot never rubs twice. The gears still spin easily by hand so I reassembled it and put the Coot back together. Granted in 2nd I get an audible chatter as 1st walks or clips the collar of 1st pinion (the replaced gear) when in 2nd from the lack of clearance. Everything runs nice and shifts smoothly regardless. It’s annoying to image that inside the transmission 2 gears are clashing and making a racket but I’ll leave them be and just wait for one to wear the other until they miss or get quieter as I figure I can either remove material until they stop clashing or just wait till they do it on their own. I have placed a ton of very powerful Neodymium magnets on the bottom of the transmission to help yank any steel shavings from the clashing gears down. I have driven the Coot maybe 1 hour so far and the sound in 2nd hasn't gotten any quieter but it also hasn't broken either which is good.
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How To: Repair of your 6x6 Photos, Vidoes and Guides, please no questions
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Coot, EAGLE and ALSPORT TRACKER Transmission
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New first gear in Coot
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