cut a flat spot in shaft for the pinion set screw?

[Rcaddict]

If you're planning on racing, I would do it. You would hate to lose a race because of the pinion slipping or coming loose. I just put one on my new NEU last night. It had a flat spot already but wan't where I needed it.

[bl-is-future]

I like it when the motors don't come with a flat spot so i can make on myself. That way i know it is not to big and is exactly where i need it. The more flat spots the weaker the shaft.

[Happywing]

I agree. I like a nice quaint little flat spot. When the manufacturers do it, it seems they lop of 20% of the shaft.

With my 9L on a rustler I have the opposite problem, I can't get the pinion off, but unless I fry the motor I don't see a need to remove it, if anybody has any secrets I am all ears.....

[neweuser]

Originally Posted by azjc

With my 9L on a rustler I have the opposite problem, I can't get the pinion off, but unless I fry the motor I don't see a need to remove it, if anybody has any secrets I am all ears.....

Heat just the pinion up a bit, it'll come off. Either that, or use a small gear puller

[jhautz]

I had that problem once when I went a little crazy with the blue locktight on the grub screw. I seeped down n between the pinion and shaft and that sucker was stuck on there. A cigartte lighter on the pinion and then carfull prying got it off though. just go slow and try not to overload the motor bearings while you are prying at it. A gear puller is the safe way to do it, but its kinda hard if you cant get the motor off o f the mount with the pinion on it.