Starter on 94 sidekick strange cranking sound

[zukitrek]

the old books on starters cover this, say in 1960 the shop had the tools then.... long ago, $1.65 shop labor. long long gone.....
Commutator 101?
What you see in red have not been tested, green passed.
1: use a meter check that each segment is not grounded to shaft.
2: and each segment to each adjacent is shorted. (loop of coil)
3: then connect armature to growler, ( mag tester you dont have) if growls, the armature is bad. hopeless.
4: all that passes. we use a lathe to turn commutator. until pretty .(flat and true and not mangled)
5: then undercut the segments, your's is a bloody mess, In which picture? (if not?, the bushes bounce, so....... that be that)
[color=##32CD32]6: new brushes,[/color] Brushes were replaced about 2 months ago. Inspected them again and all passed. bushings, and bearings, as found.
7: new pinon clutch, new solenoid, These are the ones that have not been replaced.
done.
now you know why nobody does that. why spend $200 shop labor on a $70 starter, why?

All other continuity tests passed. Maybe a deep hidden Gremlin?

PS:How was your trip home?

Javier