Remember when in doubt C4
What did you do now Andrew?
That is not a bad idea.....
As for what happened:
I set up slash #2 with 17mm adaptors and 1/8 buggy wheels for some serious grip, as well as doing some suspension tuning. Really had it going well, hitting some jumps here at my place, which is gravel, grass, and dirt road.
Took it to Rcmaniac78's place, which is all loose dusty clay and has a lot of dirtpiles to jump and climb. I had a blast!
I did notice the slipper slipped a bit more than normal, but figured it was just the added bite and planned to tighen it last night.
Well, I pulled the driveshaft cover (the new longer one), and it was not bad, just some dust.
BUT...discovered that this truck came with the old plastic bearing adaptor, and that the main bearing had siezed........ and melted the plastic bearing adaptor.....
I was surprised, because this truck was a brand-new roller (off ebay), no one has run it but me, and it has less than 10 runs on it, probably more like 6-7.....and all on 2S lipo......no 3S.
I replaced the main bearing and added a robinson racing brass bearing adaptor that I had.
Put it back together and it sounded like the spur was grinding on something.....
Turns out, that dusty clay worked it's way into the (outer) diff case and onto the ring+pinion.....needless to say, I was not impressed. I wiped it clean and took a toothbrush to the gears. The gears still felt a little rough (when spun), so I used a tiny screwdriver to pick any grit I could see out of all the gear teeth.
Basically, I think that either the gears are not broke in right, and/or need to be re-broke in. All the diff (outer) bearings were fine. I did not open the diff itself.
Greased it and put it all back together, and it still feels like there is grit in there, even though I know there isn't. I put the motor in it and tested. It spins okay, and free-wheels a while after you let off, it's just noisey.
My other roller spins free-er, but it's also got a lot more "miles" on it too.
Hence why I said I may use truck #2 to get truck #3 going. Truck #3 ran fine, just the rear bumper broke on me. Only reason I went with truck #2 instead was because it was new.
I don't have any of these issue's with my street-slash, because....well I use it on the street.....and I also run the kingheadz motor mount, which uses an oversize main bearing.
I didn't think I would need that with a stock motor, but guess what?......
It just gets me.....the truck looking great.....and finally running great. I dunno....maybe it's just that roller (truck #2), I swear it was built on a friday afternoon.......right around quitting time...or maybe it's just the way they are (when new), because I've never had a new one before.