Six Volt Starter Rebuild

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Six Volt Starter Rebuild

How to rebuild Auto-Lite six volt starter motors as found on Dodge Power Wagons from the 40s and 50s.

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1	2	3 Auto-Lite MAW 4029 positive shift starter with over-running clutch. Was not working when removed from truck.	4 Exploded image of up-to-type starter. Up to 1951 engine T137-21240.
5 After-type starter from 1951 to 1955 when Dodge switched to 12 volt. Note spiral splines on the armature shaft and the snap-on band fastener.	6 Band removed to access the brushes.	7 Brushes held in place by spring clips.	8 Brushes removed from holders so armature can be removed.
9 Through-bolts removed so end plate can be removed.	10 End plate (head assembly) removed.	11 Shot of bearing surface and spring clips.	12 Brush holders
13 Armature still in frame. Armature shaft front thrust washer and end play thrust washer intact.	14 Frame and clutch housing separated to remove armature.	15 Frame and coils soaked with oil and dirty. Note the dowel pin that aligns end plate.	16 Starter switch on frame. Note that there appears to be a screw missing from the side of the switch housing.
17 Commutator. Auto-Lite manual says undercut mica. Dodge manual says don't undercut mica because it collects dirt.	18 Clutch assembly removed from armature shaft. Armature shaft rear thrust washer missing. Don't dip clutch in solvent. It has internal lubricant.	19 Starter switch. Note screw missing from side. Auto-Lite manual says some switches have a connection on the side which is used to supply current to an automatic choke during the starting period. Power Wagons had no automatic choke.	20 Motor terminal contact.
21 Brass motor terminal contact, bakelite insulator and paper insulator? Note length of grounded brush on lower left.	22 Everything cleaned and ready for inspection and testing.	23 Will take armature and frame to be tested for grounds, and switch to be checked also.	24 Armature tested for shorts and commutator turned on a lathe by local auto electric shop.

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Sign the Guestbook. Displaying 2 of 2 entries.

Great article. Where did you get the trust washers? Keep up the good work.
- Timothy Ness, Thu, 8 Apr 2021 2:43PM

Thanks for the photos. They are really nice.
- Dennis, Sat, 14 Nov 2020 11:14AM

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