Yokomo MR4TC-BD
#2987
i just noticed that there is a difference in the trust assembly for the CGM and BD diff... on the CGM the trust assembly goes in first then the spring, on the BD, the spring goes in first before the trust assembly... does one assembly method have an advantage over the other? thanks. - jason
#2988
Originally Posted by Matt Howard
It all depends on the track length and motor used. At the 23T motor race I attended here in S. Korea I geared my Yokomo 23T motor at 5.0
#2989
Tech Champion
iTrader: (6)
Originally Posted by highwayman
i just noticed that there is a difference in the trust assembly for the CGM and BD diff... on the CGM the trust assembly goes in first then the spring, on the BD, the spring goes in first before the trust assembly... does one assembly method have an advantage over the other? thanks. - jason
#2990
If you build the diff the way it says in the cgm manual, the screw can break.
The way it has to be built in the bd manual, thsi can't happen...
The way it has to be built in the bd manual, thsi can't happen...
#2991
Originally Posted by Matt Howard
There is? I guess no one ever noticed it before. I've always built mine with the thrust ball assembly closest to the diff screw head with the spring sitting on top. I really doubt there would be a difference building it either way though.
maybe i'll try the BD way for now, and on my spare diff i'll do it the CGM way to compare, i'm starting on my LCG conversion now, that's why i noticed the difference...
#2992
Originally Posted by Martin Hofer
If you build the diff the way it says in the cgm manual, the screw can break.
The way it has to be built in the bd manual, thsi can't happen...
The way it has to be built in the bd manual, thsi can't happen...
cool... thanks.
#2993
Tech Champion
iTrader: (31)
Originally Posted by highwayman
hi matt, what particular motor was it? LR? LT? SR? ST? i'm curious 'cause we're joining a 23T race on saturday and was wondering if i could gear my KATANA and T-MAX as low as yours. thanks - jason
-Dave
#2994
Tech Champion
iTrader: (6)
Originally Posted by JDM_DOHC_SiR
I belive that Matts motor was a ST... and the Katana would be similar if you have a TS.. but if you have a Laydown brush LT or TL motor.. I would gear about .2 smaller on your final drive..
-Dave
-Dave
#2996
Thanks dave, thanks Matt...
my 23turn motors are all laydown. the track is meduim sized (can't really remember the dimensions, maybe 150 FT? )
... so my final drive should be 5.2? or 4.8? sorry just making sure... thanks.
my 23turn motors are all laydown. the track is meduim sized (can't really remember the dimensions, maybe 150 FT? )
... so my final drive should be 5.2? or 4.8? sorry just making sure... thanks.
#2998
Tech Champion
iTrader: (31)
Originally Posted by highwayman
Thanks dave, thanks Matt...
my 23turn motors are all laydown. the track is meduim sized (can't really remember the dimensions, maybe 150 FT? )
... so my final drive should be 5.2? or 4.8? sorry just making sure... thanks.
my 23turn motors are all laydown. the track is meduim sized (can't really remember the dimensions, maybe 150 FT? )
... so my final drive should be 5.2? or 4.8? sorry just making sure... thanks.
#2999
Originally Posted by JDM_DOHC_SiR
5.2~5.3 but make sure that you chek the temp after 6 mins if you can.. try to saty under 180 F or 85 C.
will do thanks... right now we gear it at 5.7, will try 5.2 to 5.3
thanks dave.
#3000
Jason
Originally Posted by highwayman
will do thanks... right now we gear it at 5.7, will try 5.2 to 5.3
thanks dave.
thanks dave.
I think I need to change my spur gear to be able to gear that low. And will rebuild the diffs the "BD" way. Having a hard time bringing the chasis down to 4.5mm, I'll just settle for 5mm.
Enjoy your build and see you on Saturday.