Pinion help

[jacobflyin]

Hey I have a Tekin 55T crawler motor and the 12 th pinion will not fit if I put the set screw toward the motor it will hit the motor and the spur will not be lined up with the splines, if I flip it over the set screw will not clamp down on the shaft is there a better pinion or do I have to grind down the back side so it will slide on the motor more.

Thank for the help

[yellowpasta2000]

u can search other pinions n just by the looks of it ull b able 2 tell if it will work or not.

what i would do i grind down or cut the excess so that it will fit. cheep easy fix! just gont get way 2 close to the setscrew hold so that when u tighten the setscrew it wouldent crack.

[solomon7]

Get 6 or 12 3mm washers and stick them under the spur between it and the plate it screws to. It'll space it out 1 (6 washers) or 2 (12 washers) Millimeters, giving you enought room. Don't just put washers where the 3 screws hold the spur to the plate, fill in all the gaps/holes with a washer that way the spur will stay straight.
Ya may need 3 slightly longer screws for this.
In this way, you can space out the spur like that 3mm+ before you don't have enough thread to torque down the center nut. You could also make a lexan spacer between the motor and motor plate if needed, but spacing the spur is easier.

[dkf]

A 12t pinion is pretty small for a 55t motor, will be very slow.