Serpent to 1/10th EP Touring Kit S400
05-13-2008, 03:13 PM
#1921
There is no way that the gear diff should be that much slower, I can understand .1 or .2 a lap if the conditions just didn't favor it, but 1 second is huge. I'd check all of the gears inside it to make sure they mesh alright, then make sure everything is in good condition externally, no bind in the bearings when it is installed, no bind on the dogbone blade, etc..
05-13-2008, 10:59 PM
#1925
I haven't had leaking problems with my diff, but if you are, I would suggest cleaning everything off, putting everything back together just as the instructions say, but maybe use some ultra black silicon around the o-ring. Let the diff sit upright for about a day to let the silicon fully dry or it could get mixed in with the oil.
05-14-2008, 01:59 AM
#1927
First thing I would do.. is take two of the gears out, to lower rotating mass. As far as lube viscosity, it depends on the track and traction. If the traction is medium, I would start with a heavier lube, like 5k or 7k.
Look at your belts and make sure there is no slippage....
Look at your belts and make sure there is no slippage....
05-14-2008, 04:17 AM
#1928
gear diff definatly is not slower.
the orings are pretty tight on the axle shafts also. so some break in time is there. In other words after a few runs they get a bit smoother.
the single set of gears means the diff is looser with heavier oil and you have a slight reduction in rotating mass. reducing mass means you can accel faster and decell faster. This a is a very minor diff but this is a world were we put alloy screws in to remove small amounts of weight so it can make a difference.
If the gear diff feels like you are binding check the bearing eccentrics to make sure they are both on the same spot. the drive train should feel the same with the gear or ball.
the orings are pretty tight on the axle shafts also. so some break in time is there. In other words after a few runs they get a bit smoother.
the single set of gears means the diff is looser with heavier oil and you have a slight reduction in rotating mass. reducing mass means you can accel faster and decell faster. This a is a very minor diff but this is a world were we put alloy screws in to remove small amounts of weight so it can make a difference.
If the gear diff feels like you are binding check the bearing eccentrics to make sure they are both on the same spot. the drive train should feel the same with the gear or ball.
