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R/C Tech Forums Thread Wiki: Official Team Associated RC10 B5m Mid-Motor Thread
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Old 07-15-2014, 04:36 PM   #6031
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the diff balls are definitely done. You wont be able to rebuild it to be smooth unless you replace at the minimum the diff balls and flip the rings. I would replace the gear too as it may have gotten hot and warped. Only flip the rings if you havn't done so already
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Old 07-15-2014, 04:37 PM   #6032
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whatever you do, test diff before installing into tranny. You can break it in by using a drill motor and slowly tightening diff a little bit at a time (1/8 turn) for 20 second intervals. that way, you can see if all is ok before installing. I would clean everything with motor cleaner and sand thrust washers and diff rings with 500 grit. if you have only used one side, flip and sand the side that has not been used. use plenty of correct grease on the rings and balls (on top of balls make sure you have a nice amount of grease all the way around). if during break in it becomes gritty, replace both diff balls and thrust balls. I use stock ae stuff and change out when necessary since I run stock and not too much stress on the diff to warrant carbide. once you have completed breaking it in, secure diff outdrives with a couple of hex wrenches and try to turn the actual gear. if it moves, tighten it. back off slipper all the way then install and adjust slipper. if you are running stock, and you have tightened the diff sufficiently, the diff should not bark. the whole concept is to tighten the diff enough that the slipper gives before your diff barks. run slowly on track for a couple of minutes and recheck tightness and adjust if necessary. I run a slipper eliminator and have my diff tight enough that a stock motor can not cause the diff to slip and damage balls or rings. good luck
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Old 07-15-2014, 04:40 PM   #6033
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Get someone to help and get some ceramic diff ball's & fresh rings..

Do not reuse your steel diff balls, they are toast.

When properly adjusted you can place two drivers into the cups and not be able to budge or move the gear by hand.
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Old 07-15-2014, 05:19 PM   #6034
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I asked this a while ago but never got an answer. Do any of you guys know exactly how wide the rear aluminum clamping hexes are. Like measured with a caliper???
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Old 07-15-2014, 05:46 PM   #6035
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Originally Posted by Skeeter36 View Post
I asked this a while ago but never got an answer. Do any of you guys know exactly how wide the rear aluminum clamping hexes are. Like measured with a caliper???
Since nobody is responding how about you measure them and report back to us
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Old 07-15-2014, 05:55 PM   #6036
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For anyone looking drop weight, just try the Protek 3200 short, should drop anywhere 20-50grams depending on the shorty you currently run.

Check it out and try it:
http://www.amain.com/product_info.ph...ts-74V-3200mAh
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Old 07-15-2014, 06:33 PM   #6037
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Since nobody is responding how about you measure them and report back to us
The ones I have are about 5.15mm But they seem narrow for some reason???
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Old 07-15-2014, 06:36 PM   #6038
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The ones I have are about 5.15mm But they seem narrow for some reason???
There you go... They are 5.15 mm
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Old 07-15-2014, 06:37 PM   #6039
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Anyone got any tricks to removing the bearing on the end of the top shaft from the tranny case?
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Old 07-15-2014, 06:48 PM   #6040
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try using the top shaft to pop it out. good luck. I have had the same problem and usually leave it in if it feels ok when I test with top shaft.
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Old 07-15-2014, 07:40 PM   #6041
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There you go... They are 5.15 mm
Well side by side w/ another B5M it is narrower which is why i was asking. I wasnt looking for a Smart-alic!! Just looking to see what anyone else's measured.
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Old 07-15-2014, 08:57 PM   #6042
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Quote:
Originally Posted by Skeeter36 View Post
Well side by side w/ another B5M it is narrower which is why i was asking. I wasnt looking for a Smart-alic!! Just looking to see what anyone else's measured.
Are your plastic? I noticed my plastic rears are shrinking lol. Or melting where they touch the bearing. I will probably get some alum rear ones soon. I was hoping for an AVID release of hexes. But no go.
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Old 07-15-2014, 08:59 PM   #6043
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Quote:
Originally Posted by Skeeter36 View Post
Well side by side w/ another B5M it is narrower which is why i was asking. I wasnt looking for a Smart-alic!! Just looking to see what anyone else's measured.
mine are 6.75mm
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Old 07-15-2014, 09:53 PM   #6044
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a few months of once a week racing?

outdrives/bones rarely out last a diff
Mine have no wear at all after almost 15 race day and practice days. No one else running b5's locally showing wear either
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Old 07-15-2014, 11:26 PM   #6045
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need to rebuild my diff and see only carbide balls from ae. anyone use steel balls from mpi in their b5m ball diff? not getting more than 1 build out of carbide so thinking I might go steel and save some money
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