Broken starter nose cone

Keith_J

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Yes, it happened. That is why I had the starter hang-on. This time, it caused a little overheating of the starter, took me 45 seconds to pull batteries. But the heat was from friction, not resistance so the windings in the field and rotor look fine. Just a bit of steel wear, not an issue.

Bushings and brushes are fine. Just need to weld the nose cone back on to the base, true up the bushing bore and reset the nose bushing.

Even took the solenoid apart, no real wear or weld points.
 

Keith_J

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Got it cleaned, burrs removed from the bendix and nose shaft, commutator turned and the nose piece welded this morning. Bench tested and it looks fine, at 12 volts. I checked field windings for short to ground, all is good there. Also no rotor shorts with proper continuity.

I will order a new nose piece and install it ASAP but the great news is the starter is back in action.
 

Keith_J

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THANKS!!!! Root cause analysis is a missing retainer circlip holding the bendix gear and overrunning clutch onto the shaft. This caused the bendix gear to crash into the nose piece, overstressing it. It only took 100 psi of argon, a few kW-h of electricity and two 4043 filler rods to fix, still cheaper plus the wife let me have the time to do it instead of shopping with her for antiques. Win-win.
 
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Keith_J

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It WORKS. The circlip was fashioned from 1/16" ER70S2 weld filler that was bent, cut and finished to diameter, then quenched to near spring temper ( at 0.35% carbon, it barely quenches to knife hard). The washer was fabbed from 1030 carbon steel.

Only needed utility power but could have used the MEP-002a to power the welder.

BTW, it failed last night, getting ready for the car show. Tell Mik it isn't personal, just a crappy overhauled starter.
 

mkcoen

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BTW, it failed last night, getting ready for the car show. Tell Mik it isn't personal, just a crappy overhauled starter.
Could have stolen, I mean borrowed, the one off the stepson's 1009. By the time he figured out the problem (or got out of bed) you'd be home.
 

Keith_J

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Could have stolen, I mean borrowed, the one off the stepson's 1009. By the time he figured out the problem (or got out of bed) you'd be home.
There are things which provoke war, then there are those that guarantee it. I prefer to live in a peaceful house, even if that requires slight warping of reality. Borrowing a starter off of T's is inviting world war. Even considering all the work+money I have spent on it.
 

Keith_J

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Location
Schertz TX
Got the proper Delco parts installed, meaning the starter was yet again removed, taken apart and put back together. I feel much better now knowing all is right. Truck starts much better too, I had noticed an overall degradation in starting quality, sometimes taking 3-4 seconds to catch.

This starter appears to have been overhauled with a poor spray paint job, meaning those parts were missing from overhaul.
 
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