I received the rear wheel from a Racing 3 bike from a customer.
The pawls on the freewheel body ratchet were slipping occasionally.
It's probably a broken pawl spring.
Separately, I noticed the freewheel body was loose relative to the hub shell.
If the right end nut were loose, there would be lateral play, but
since this play is eccentric, it's likely the outer bearing of the freewheel body is damaged.
When I wiped away the dirty grease from the hub axle,
sure enough, there were corrosion marks and seizure scratches just below the outer bearing.
Once in this condition, spraying with parts cleaner won't remove the black discoloration.
I polished it away with abrasive.
I replaced the outer bearing of the freewheel body.
The pawl spring was broken in two equal phases.
Even in this condition, one pawl is barely raised, so
while not normal, the freewheel often still works for coasting.
Once you notice it, you should replace it before the freewheel starts spinning freely in the forward direction.
I also did a hub overhaul, but
surprisingly the bearings showed no damage.
Gruesome.
By the way, the freewheel bearing's ball bearings had cracked, and the inner race and retainer flew apart,
leaving only the outer race on the freewheel body side, which made the work a bit tedious.
The inner race, outer race, and single-side seal are visible at the bottom of the image.
I did check the wheel runout, but only touched the nipples in two spots slightly.
The centering was unnaturally perfect, probably because
I've had this wheel in before for inspection.
By the way,
Did you notice how clean the hub shell is?
This time, I cleaned this hub with Barbieri's Biclean!!
（I thought it was a documentary program, but it turned out to be a long-form CM for ni○iku egg yolk—what a surprise twist!）
Right after spraying, the dirt started lifting off.
The spots that look extremely clean are where I wiped with my finger.
Around the complex flange shape,
I applied Biclean to a brush
and scrubbed it.
The dirt was already lifted off, so it won't stick to the hub afterward.
The pawls on the freewheel body ratchet were slipping occasionally.
It's probably a broken pawl spring.
Separately, I noticed the freewheel body was loose relative to the hub shell.
If the right end nut were loose, there would be lateral play, but
since this play is eccentric, it's likely the outer bearing of the freewheel body is damaged.
When I wiped away the dirty grease from the hub axle,
sure enough, there were corrosion marks and seizure scratches just below the outer bearing.
Once in this condition, spraying with parts cleaner won't remove the black discoloration.
I polished it away with abrasive.
I replaced the outer bearing of the freewheel body.
The pawl spring was broken in two equal phases.
Even in this condition, one pawl is barely raised, so
while not normal, the freewheel often still works for coasting.
Once you notice it, you should replace it before the freewheel starts spinning freely in the forward direction.
I also did a hub overhaul, but
surprisingly the bearings showed no damage.
Gruesome.
By the way, the freewheel bearing's ball bearings had cracked, and the inner race and retainer flew apart,
leaving only the outer race on the freewheel body side, which made the work a bit tedious.
The inner race, outer race, and single-side seal are visible at the bottom of the image.
I did check the wheel runout, but only touched the nipples in two spots slightly.
The centering was unnaturally perfect, probably because
I've had this wheel in before for inspection.
By the way,
Did you notice how clean the hub shell is?
This time, I cleaned this hub with Barbieri's Biclean!!
（I thought it was a documentary program, but it turned out to be a long-form CM for ni○iku egg yolk—what a surprise twist!）
Right after spraying, the dirt started lifting off.
The spots that look extremely clean are where I wiped with my finger.
Around the complex flange shape,
I applied Biclean to a brush
and scrubbed it.
The dirt was already lifted off, so it won't stick to the hub afterward.