Hello Folks:

I am still working on my D4 and I beleive making progress.

new filters

Fuel appears to be clean.

Replaced wiring with heavier guage wire soddered ends.

new batteries

cleaned up old starter solenoid starter motor now turning.

injetor pumps working throttle moving well.

new glow plug solenoid, new heat/start switch, new amp guage, drawing nice solid 28 amps to glow plugs.

waiting for a #2 fuel line

was thinking about removing electric starer motor to clean/service what should I be looking for etc, service wise. anticipate I will be cranking a fair amount so want it in good shape.

thanks for all the help I have gotton so far

Patrick

Not that much to check....
Look for burnt commutator, condition of brushes and check bearing wear to be sure the armature is not rubbing on the pole shoes.
Check electrical connections

starter appears to be pretty solid. oiled shaft, electric cleaner spray, compressed air reinstalled. waiting for #2 fuel line

Starter is a Delco Remy 689

Patrick