HowTo-SB magnet mod: No pinion removal !!!

[Exaran]

Needed:
One Xmods motor to be modified
One spinbrush motor
Small screwdrivers
Tweezers
Maybe a soldering iron

My motor tech vocabulary is poor, so bear with me...

1-Get your 2 motors

Do steps 2-6 to each motor

2-Pry the tabs on the motors up that hold the endcaps on

3-Insert a screwdriver in the tiny gap between the end cap and the little plastic piece inbetween the connectors, and pry. This allows you to remove the end cap while leaving the wires and brushes in place

4-Pivot the brushes out of the motor being careful not to bend or twist them too much (you may need to pop off one of the solder points on the can)

5-Use the tweezers and pull out the "U" clip on the top of the motor that holds the magnets in place.

6-Use the tweezers to pull the magnets from the can. Set them aside so you know what side of which motor they came from.

Steps 7- do only to the Xmods motor

7-Put the SB magnets into the Xmods can. Put the LEFT SB magnet into the LEFT side of the Xmods can and vice versa. In other words the same sides they came from (Or else your motor will run backwards, like mine did at first ) [EDIT: I have corrected this step]

8-Put the "U" clip back into the motor. Push it totally into the can, but so that there is a little of the clip left right in front of the magnets for you to grab in case you need to change magnets again.

9-piviot the brushes back into the motor, carefully, again.

10-pop the endcap back on, and bend the little tabs back down to hold the cap in place

11-Try spinning the pinion, it should turn freely. You will feel a small "grabbing" force as you turn from the stronger magnets.

12-Solder the connection back to the can, if you had to break it in step 4. Remember to rough up the can a little with sandpaper or a file to make the solder stick better.

13-dispose of the extra spinbrush parts or save for experimentation

14-install the motor in the car, insert fresh batteries, and play!

[RC 2NR]

Thanks...this is a good idea, because when I tried to take the pinion of my drag motor with the flame method, I destroyed it.

I tried it and it works great.

Any moderator: I think this should go into XMods>XMod Science

[Bad Company]

I will move this over for now pending further test results from this mod.

Exaran: Where in Richmond are you? There are a couple members here looking to get together for weekly racing/modding.

[RC 2NR]

I would recommend putting a little general purpose oil in the can and running it with a battery for a few minutes until most of the oil comes out. This makes it run faster and cooler.

[Exaran]

Glad you like my idea

I'm in east richmond, near the airport. That would be awesome to get together and race. I've spent about 20 hours modding and 1 hour driving cause I have nowhere to drive in my house

I sent you an email with my contact info

[Nathan]

Wow. Never thought of that. Good work- I don't think there is a pinion puller within 200 miles of the Alamo . This will save me much time.

[RC 2NR]

Originally posted by Nathan
Wow. Never thought of that. Good work- I don't think there is a pinion puller within 200 miles of the Alamo . This will save me much time.

I haven't heard of anybody being able to get one of the pinions off without breaking their pinion puller.

[nobodyhere962]

does it matter wat brand the spinbrush is(crest)
and how do u get the motor out

sry im a bit dense and new at this

[RC 2NR]

Originally posted by nobodyhere962
does it matter wat brand the spinbrush is(crest)
and how do u get the motor out

sry im a bit dense and new at this

Yes, it has to be a Crest Spinbrush.

To get the motor out:
1. Pull the battery cover off
2. Take off or cut off the rubber gasket
3. Pull the toothbrush apart
4. Remove the 4 screws that hold the motor in

[nobodyhere962]

thanx

[neurokinetik]

Originally posted by RC 2NR
I haven't heard of anybody being able to get one of the pinions off without breaking their pinion puller.

My puller is still functional even after several pinion removals. I have to flatten the thin metal plate by putting it into a vise when I'm done, along with using Vise-Grips to hold it in place when I'm using it, but it does hold up, for the most part.

[SuPrBuGmAn]

I ordered one last night, supposedly it holds up quite nicely. Do a search on GWS Pinion Puller for several online stores that carry them.

[sinistar]

I have done this successfuly but sometimes I have had trouble getting the solder to stick to the can. I tried sandpaper, my taper file, even a small hole pattern. And Have not been able to get the solder to stick. Is there something one of you know that I don't? Does it matter if the can gets hot before puting the solder on the can or do you just put the solder on like you would just anything? I really have been wondering about this because I have a puller but I'm in a fix as just as to how to get the solder to stay on the can. Right now I'm just taking some narrow RS electrical tape and banding the lose solder connections to the can. But this really is bothersome with pending heatsink developments and other motor related engin-e-rings. Please somebody tell me what might be going on.

[neurokinetik]

Originally posted by sinistar
I have done this successfuly but sometimes I have had trouble getting the solder to stick to the can. I tried sandpaper, my taper file, even a small hole pattern. And Have not been able to get the solder to stick. Is there something one of you know that I don't? Does it matter if the can gets hot before puting the solder on the can or do you just put the solder on like you would just anything?

It takes a good soldering iron, and a little patience. I just heat the can where I want the cap soldered, and put a blob of solder there. I then tin the lead of the cap. Then I heat the blob up, and put the tinned wire into it while it is melted. Let it cool, and you are sorted.

[IBAUCLAPla]

HELPP!!!!!!!!! I get up to the part where you remove the Uclip. I don't see a Uclip anywhere. I did steps 1-4 perfect on my Xmod stagge one motor. I cant get the magnets out. Please help