Quote:
Originally Posted by Brandon_L
So then we turned our attention to the fisher price gearbox, but couldn't get the motors in them. We'd stick the motors in and screw them in, but when we ran power to it it couldn't turn as if it was jammed. After playing with it for awhile we found that it only works in some weird position that doesn't allow you to screw the motor in. Has anyone else had this problem? we tried all the motors we had with the gear on the end and it happened with all of them.
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You may have a Fischer Price gearbox that does not match your motor pinion. The pinion the gearbox is designed for is molded into the outside of the gearbox (two places I think, don't remember where), it should be something like "19T" or "17T". Make sure this number matches the number of teeth on the pinion for your 2011 FP motor.