Tamiya M03 Mini Build Tips
After weeks of my mini being a bit slow, I rebuilt it and I think I’ve cracked it. Went racing last night, and it seems a lot quicker, and I was a couple of laps up on people I was struggling against in the last couple of weeks.
It sounded a lot different, eager to accelerate, and it really sang at top speed, it sounded smooth and sweet.
One secret I didn’t tell you in the rebuild post, in case it didn’t work… I used GT85 on the bearings and on the gears, it dries to leave a PTFE coating, and I reckon that’s why it was sounding real nice.
It was handling a lot better too, more predictable, and stable, the suspension moving correctly helped, and I think the smooth ball diff helps it keep the speed in the corners.
Build tips:
- Make sure gearbox is free, give it a spin after every screw in the chassis, make sure it’s as free as possible.
- Take o-rings out of diff outputs, make sure gearbox spins at all points of suspension travel
- Build ball diff nicely, diff grease on big balls, graphite or anti-wear grease on thrust.
- GT85 all bearings and gears, no other grease on them
- Anti-wear grease on rebuildable UJs
- Clean your motor in coca-cola for 2 mins at 3v, wash with water, then motor spray, dry thoroughly. Oil both bronze bearings with very light oil.
- A drop of comms drops on each brush, make sure you let them soak in and power it up for a few seconds on the way to the line.
I just hope I’m now on the pace on Friday nights again, it’s been embarassing the last couple of weeks!
Written by simon.
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