cant go forward

custommicromt · #1 09-02-2005, 03:57 PM

ok here is the deal. i just finished adding the fourth gear setup to my mt and every thing is fine. then i try and go forward and it wont go, so i try and go back wards and it is fine...WHY WONT IT GO FORWARD..

Racer9 · #2 09-03-2005, 09:17 AM

maybe the gear mesh is wrong. maybe it is sticking. When you push it fowards will it go foward?

frizzen · #3 09-03-2005, 02:44 PM

Your gear mesh is too tight, or too sloppy.

Either you used pins with too narrow of diameter for the gear to ride on, or you just placed the gears slightly too deep into mesh. Could be either, or a combination of both; I suspect it's the narrow pin causing it.

Reverse provides torque (on whichever gear is binding) that is "opening" the mesh so the teeth ride on eachother like they're supposed to and life is good and the gears all work properly. Forward torques it to "close" the mesh so that it binds hard enough the motor stalls.

If your pins are narrower than the bearing hole in the gear, it gives you "sloppy" mesh. This means at a stop, your gear mesh is normal, reverse it "opens up" making it looser, forward it "closes up" making it tighter. Not good, but sometimes you can set it up carefully enough it won't bind or pitch the gear out of mesh.

custommicromt · #4 09-05-2005, 07:42 PM

it isnt the gears binding the are free of slop and arent to tight, they have always worked fine. the problem is somthing electronic because it only supplies power to the motor in reverse but not forward. it turns fine to

frizzen · #5 09-06-2005, 02:01 AM

You added a gear, and it's not going forward now. Did it go forward before you added gears?

Does it run forward/rev if you just hold a motor to the contacts without it's pinion being meshed to gears? Does it work forward with a different motor? Do you have a multi-meter?

If gearing is the only thing you've messed with, it should be gears. If it's in the pcb it could be many things, probably you could have blown a transistor.