Kyosho Ultima SC-R Thread
04-12-2012, 05:42 PM
#3511
To check your diff raise the rear of the truck off the ground so the chassis is supported and the wheels are in the air. Take each hand and put one on each tire and with light force flick them in the same direction, just a quick spin forward, and see how far they freely spin, I run my diff tight enough so they only spin about half to 3/4 of rotation. That make sense?
This quoted post is NOT how you check the diff.
You must spin the wheels in opposite directions!!!!!
04-12-2012, 05:47 PM
#3512
if he's wrong at least elaborate more, or why on "your" right way
04-12-2012, 06:22 PM
#3513
Watch this http://www.rccaraction.com/blog/2011...ed-tebo-video/
It is also a great vid because you don't have to make easy laps on the track to break the diff in. It works awesome. I do it on my 2 and 4 buggy as well.
04-12-2012, 07:26 PM
#3515
Pimpin is correct. The ball diff allows each wheel to turn at different rates. With a gear diff or ball diff...spinning the wheels forward wouldn't tell you a thing about the diff, it would only tell you the drivetrain isn't bound up.
Watch this http://www.rccaraction.com/blog/2011...ed-tebo-video/
It is also a great vid because you don't have to make easy laps on the track to break the diff in. It works awesome. I do it on my 2 and 4 buggy as well.
Watch this http://www.rccaraction.com/blog/2011...ed-tebo-video/
It is also a great vid because you don't have to make easy laps on the track to break the diff in. It works awesome. I do it on my 2 and 4 buggy as well.
The most important thing that Tebo missed in the video is the fact that the transmission CANNOT spin while you are checking the diff. Depending on what motor you are running the actual motor may not have enough cogging torque (some refer to it as no-current torque) to keep the trans from not spinning. I usually take the slipper cover off and hold the spur gear with one hand and flick either wheel with the other so I am assured the transmission doesn't spin.
Greg
04-12-2012, 08:39 PM
#3520
All,
The most important thing that Tebo missed in the video is the fact that the transmission CANNOT spin while you are checking the diff. Depending on what motor you are running the actual motor may not have enough cogging torque (some refer to it as no-current torque) to keep the trans from not spinning. I usually take the slipper cover off and hold the spur gear with one hand and flick either wheel with the other so I am assured the transmission doesn't spin.
Greg
The most important thing that Tebo missed in the video is the fact that the transmission CANNOT spin while you are checking the diff. Depending on what motor you are running the actual motor may not have enough cogging torque (some refer to it as no-current torque) to keep the trans from not spinning. I usually take the slipper cover off and hold the spur gear with one hand and flick either wheel with the other so I am assured the transmission doesn't spin.
Greg
He spins the wheels in opposite directions (not the same direction) to check the diff tightness, therefore the trans does not move.
The trans may turn if you spin the wheels the same direction, in which case, it is being checked incorrectly.
04-13-2012, 12:44 AM
#3521
Tech Apprentice
04-13-2012, 05:17 AM
#3522
The hardware on the front is from the SC10 sway bar kit, and the bar if from a Lazer I believe. I also have a slightly thicker bar from XRay that I sometimes use. I think this one is 1.3mm and the Xray is 1.4mm.
In the rear it's just the standard SC10 sway bar, just have to drill holes in the arms for the ballstud.
And now it seems as though a lot of the fast AE guys are running sway bars all around on their SC10.
In the rear it's just the standard SC10 sway bar, just have to drill holes in the arms for the ballstud.
And now it seems as though a lot of the fast AE guys are running sway bars all around on their SC10.
04-13-2012, 05:24 AM
#3523
The hardware on the front is from the SC10 sway bar kit, and the bar if from a Lazer I believe. I also have a slightly thicker bar from XRay that I sometimes use. I think this one is 1.3mm and the Xray is 1.4mm.
In the rear it's just the standard SC10 sway bar, just have to drill holes in the arms for the ballstud.
And now it seems as though a lot of the fast AE guys are running sway bars all around on their SC10.
In the rear it's just the standard SC10 sway bar, just have to drill holes in the arms for the ballstud.
And now it seems as though a lot of the fast AE guys are running sway bars all around on their SC10.
04-13-2012, 06:41 AM
#3525
I'll get a message to Tebo to let him know he doesn't know what he's doing
He spins the wheels in opposite directions (not the same direction) to check the diff tightness, therefore the trans does not move.
The trans may turn if you spin the wheels the same direction, in which case, it is being checked incorrectly.
He spins the wheels in opposite directions (not the same direction) to check the diff tightness, therefore the trans does not move.
The trans may turn if you spin the wheels the same direction, in which case, it is being checked incorrectly.
Watch this video (about 3/4 way down the page). Lot's of good info here too.
http://www.rccaraction.com/blog/2011...yan-cavalieri/
Last edited by fishboy; 04-13-2012 at 09:21 AM.