YOKOMO Touring Car BD-7
#3167
Wow, weird. I'm running them, but only had them in for about 2 months. How long have you had them in? I also reshimmed my diff as well. I replaced the internal shim with a .1mm shim. Made my diff smoother.
#3168
Did you feel any handling different before and after you re-shim the diff?
#3169
I think I'll post up an updated setup for my local carpet track tomorrow night. If feels real good and consistent. But it's gonna be changed this coming weekend for more setup testing. It's aimed at medium bite carpet tracks running 17.5 blinky.
#3170
Tech Master
iTrader: (5)
On my cars first outing last month using the stock o rings it was great, then after that I was able to find a shop that had the Kyosho o rings in stock so I replaced them after that and its been progressively getting worse,
Put new kyosho o rings back in today and its back to how it should be, nice and free.
I had the same problem with Associated o rings they would just swell in about 3 weeks, but as there is 2 o rigs in the associated diff on each side I just removed one, and it fixed the problem. Green slime never seem to help.
I will hassle CraigM on Saturday and see how tight his diff feels.
#3171
Tech Regular
hm strange my kyosho o rings are holding up fine since fitting em!
#3172
Tech Regular
I fitted Kyosho orings way back, maybe March? Haven't even considered changing them since.
#3175
Tech Regular
im using associated, again no swelling?
#3177
Tech Apprentice
About the geardiff, when i put the outdrive in and the kyosho o-ring then the outdrives still spins free. When i put the shim on and put the pin in the hole the outdrive binds a little bit.
This can have 3 reasons
1. The shim is to thick ( mine are 0.2 mm)
2. The hole on the outdrive is at the wrong place
3. The molded housing is to big.
I sanded the housing a little bit at place where the outdrives come out.
This solved the binding of the outdrives.
Then i sanded the biggest gears and this made the diff al little less notchi.
@ jimmiymac
Did you replace the original 0.2mm shim with a 0.1 or did you add a extra 0.1mm shim on top of the original?
If you did the first then i achieved the same, only whit a lot more work. It would have been easier to just replace the shim.
This can have 3 reasons
1. The shim is to thick ( mine are 0.2 mm)
2. The hole on the outdrive is at the wrong place
3. The molded housing is to big.
I sanded the housing a little bit at place where the outdrives come out.
This solved the binding of the outdrives.
Then i sanded the biggest gears and this made the diff al little less notchi.
@ jimmiymac
Did you replace the original 0.2mm shim with a 0.1 or did you add a extra 0.1mm shim on top of the original?
If you did the first then i achieved the same, only whit a lot more work. It would have been easier to just replace the shim.
#3179
Tech Regular
did a recent diff rebuild, butter smooth
#3180
About the geardiff, when i put the outdrive in and the kyosho o-ring then the outdrives still spins free. When i put the shim on and put the pin in the hole the outdrive binds a little bit.
This can have 3 reasons
1. The shim is to thick ( mine are 0.2 mm)
2. The hole on the outdrive is at the wrong place
3. The molded housing is to big.
I sanded the housing a little bit at place where the outdrives come out.
This solved the binding of the outdrives.
Then i sanded the biggest gears and this made the diff al little less notchi.
@ jimmiymac
Did you replace the original 0.2mm shim with a 0.1 or did you add a extra 0.1mm shim on top of the original?
If you did the first then i achieved the same, only whit a lot more work. It would have been easier to just replace the shim.
This can have 3 reasons
1. The shim is to thick ( mine are 0.2 mm)
2. The hole on the outdrive is at the wrong place
3. The molded housing is to big.
I sanded the housing a little bit at place where the outdrives come out.
This solved the binding of the outdrives.
Then i sanded the biggest gears and this made the diff al little less notchi.
@ jimmiymac
Did you replace the original 0.2mm shim with a 0.1 or did you add a extra 0.1mm shim on top of the original?
If you did the first then i achieved the same, only whit a lot more work. It would have been easier to just replace the shim.