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To clean the comm superfast just chuck the pinion side into a cordless drill, while its spinning hold #0000 steel wool on the comm...it will look new in seconds

R6cowboy wrote: ↑Thu Apr 07, 2022 10:14 pm

b027 wrote: ↑Thu Apr 07, 2022 9:40 pm R6Cowboy - im pretty much convinced already so don’t worry about posting those pictures unless you want to! I’d still appreciate them to help learn more about the 240SB.

Thanks again everyone for the quick and helpful feedback !

No prob, I was already working on it. And in case you need any other future Le Mans muscle confirmation, I have a few to compare to.


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OMG that was so kind of you to take apart your SPA !
I recently received from the bay a 240 combo. The ST is definitely correct but i don't believe the WS is, its a single wind. It looks like something I have seen before but I can't remember when, where or what in.
Would you by chance please post some picks of your 240ws innards? I firet searched several days with google/images and used a vpn to spoof several countries to get different results but could not find one.
(I knew I should have bought that 240ws armature this past winter when i saw it on the bay. So Full of REgerts<-tattoo )

Frankentruck wrote: ↑Thu Apr 07, 2022 10:11 pm You guys have some really dirty commutators there. Juicedcoupe shared this comm cleaning stick link a while back.

Wow, over $13 for that? Just get a bit of fine-grit sandpaper, 1000 grit or higher, a few twists and call 'r done. Works great for slot car pickup shoes, too.

It has gone up with a nearly 50% price increase since that was posted.

Those unnecessary and overpriced niche products targeting hobbyists make me laugh sometimes. It reminds me of another product, specialty "bearing washers". Get a small plastic cream cheese container, some WD40, insert bearings, and give it a good shake. Done. It is to laugh!

That one is the same thing as Trinity used to sell. But any fiberglass scratch pen works.

I have a comm lathe and different grades of comm sticks, but I still use the fiberglass pens. They are really helpful for cleanup after cutting the comm.

Nefarious wrote: ↑Wed Oct 04, 2023 12:24 am OMG that was so kind of you to take apart your SPA !
I recently received from the bay a 240 combo. The ST is definitely correct but i don't believe the WS is, its a single wind. It looks like something I have seen before but I can't remember when, where or what in.
Would you by chance please post some picks of your 240ws innards? I firet searched several days with google/images and used a vpn to spoof several countries to get different results but could not find one.
(I knew I should have bought that 240ws armature this past winter when i saw it on the bay. So Full of REgerts<-tattoo )

Sure thing, not a problem. That's certainly not a 240WS armature, it's a 27T singe unit. They came in a bunch of different stock motors. The 240WS is a 18T double with 0.65mm wire. I'll get back to ya soon on that.