Bump box motor change
#1
Bump box motor change
I have purchased two new 775 motors to replace the dual 550 set up in my bump box. I need pinons for the new motors as the shaft sizes are different.
Does anyone know where I can get the pinons for my OFNA box? I have tried searching the web, OFNA web site and others to no avail.
Can anyone help?
Does anyone know where I can get the pinons for my OFNA box? I have tried searching the web, OFNA web site and others to no avail.
Can anyone help?
#2
I don't know, but this is what scared me away from replacing the motors in my Losi box with the stronger 775 motors. I ended up running the stock 550 motors with two 7-cell packs instead of the required 6-cell packs. This made all the difference in the world, and the box has absolutely no trouble starting my GRP .21 anymore.
#4
I don't know, but this is what scared me away from replacing the motors in my Losi box with the stronger 775 motors. I ended up running the stock 550 motors with two 7-cell packs instead of the required 6-cell packs. This made all the difference in the world, and the box has absolutely no trouble starting my GRP .21 anymore.
#5
You're right. At some point I'll go with the LIPO cells, but I don't have a charger for them yet, and I have plenty of 6 and 7-cell matched packs from my 1/10th scale electric cars. Question on the motors you mentioned - how do you get the pullies off the old motors and onto the new ones? It looks like they're pressed on, but I tried to pry them off and it seemed nearly impossible. Strange that they don't mount with a set screw like a normal pinion gear on an electric motor.
#6
You're right. At some point I'll go with the LIPO cells, but I don't have a charger for them yet, and I have plenty of 6 and 7-cell matched packs from my 1/10th scale electric cars. Question on the motors you mentioned - how do you get the pullies off the old motors and onto the new ones? It looks like they're pressed on, but I tried to pry them off and it seemed nearly impossible. Strange that they don't mount with a set screw like a normal pinion gear on an electric motor.
#7
Tech Elite
iTrader: (24)
I think some guys were putting these in for more torque.....
http://www.carolinasrc.com/Webstore/...idproduct=4040
I used one and it seemed to work very well.
http://www.carolinasrc.com/Webstore/...idproduct=4040
I used one and it seemed to work very well.
#8
Lots of great ideas guys. I think that I will buy a couple of pinions for $3 and ream them out. I didn't want to ruin the existing motors as I will use them for spares. I got the 775 motors for less than $15 shipped, but they came with out the pinions. Amain wanted $30 plus shipping for motors with the pinions on them. I think that for $12 plus shipping I can ream out the holes myself.
I will also have to do some changes on the mounting of the motors, but that should be easy dremil work.
I will also have to do some changes on the mounting of the motors, but that should be easy dremil work.
#9
Lots of great ideas guys. I think that I will buy a couple of pinions for $3 and ream them out. I didn't want to ruin the existing motors as I will use them for spares. I got the 775 motors for less than $15 shipped, but they came with out the pinions. Amain wanted $30 plus shipping for motors with the pinions on them. I think that for $12 plus shipping I can ream out the holes myself.
I will also have to do some changes on the mounting of the motors, but that should be easy dremil work.
I will also have to do some changes on the mounting of the motors, but that should be easy dremil work.
let us know what you end up with and how it comes out...pics would be nice as well.