Stupid story short, the starter motor locked up. Too much cranking wore out one of the drive end bushings. While I had it apart I decided I wanted to redo some previous work on it ... the right way this time.
No damage to the armature ... lucky. It ohms out and sounds right on a growler.
OK, now the long story ...
The field winding wrap was in very poor shape. Previously, several years ago I had the starter apart and wrapped electrical tape around the corners of the field coils where it had been breaking and falling off.
When installing the field winding my previous solder job to the studs was very poor. I used a propane torch and burned some of the insulation but it was not grounding out so I ran the starter like that with no problems until about two weeks ago.
I have all new bushings and field wrapping tape and now a soldering iron with a large copper slug on the end of it. I timed 15 minutes with the propane torch to get the copper slug hot enough to melt solder.
Maybe I need a larger torch or use two. I don't know if I need to get the copper slug hotter but it seemed to take a long time to get that hot.
I mounted the larger stud between 2 pieces of wood in a vice. With the soldering iron/copper, I was able to tin the top of the stud where the field winding copper bars will attach.
I cleaned and glass beaded all of the housing inside and out. I am wondering if I should leave the inside bare metal where the filed pole shoes will mount or if painting the whole inside is a bad idea.
Reason I ask is because there was a layer of crud under a couple of the shoes. I'd like to know if it makes any difference if the shoes are not electrically in contact with the case of the starter motor.
I know the pole shoes have to be insulated from the field windings but is it ok if they are insulated from the case by a layer of paint ? Do the shoes need to be gounded better than just though the mounting screws ?
Also if anyone has any tips for a basic newbie doing soldering this way, I could sue some help. Last time I used a soldering iron yo heat with a torch, was in highschool metal working class. Mucho years ago. Have done lots of smaller electrical wire soldering with an electric soldering gun and small soldering pencils, so I know when solder is flowing etc.
No damage to the armature ... lucky. It ohms out and sounds right on a growler.
OK, now the long story ...
The field winding wrap was in very poor shape. Previously, several years ago I had the starter apart and wrapped electrical tape around the corners of the field coils where it had been breaking and falling off.
When installing the field winding my previous solder job to the studs was very poor. I used a propane torch and burned some of the insulation but it was not grounding out so I ran the starter like that with no problems until about two weeks ago.
I have all new bushings and field wrapping tape and now a soldering iron with a large copper slug on the end of it. I timed 15 minutes with the propane torch to get the copper slug hot enough to melt solder.
Maybe I need a larger torch or use two. I don't know if I need to get the copper slug hotter but it seemed to take a long time to get that hot.
I mounted the larger stud between 2 pieces of wood in a vice. With the soldering iron/copper, I was able to tin the top of the stud where the field winding copper bars will attach.
I cleaned and glass beaded all of the housing inside and out. I am wondering if I should leave the inside bare metal where the filed pole shoes will mount or if painting the whole inside is a bad idea.
Reason I ask is because there was a layer of crud under a couple of the shoes. I'd like to know if it makes any difference if the shoes are not electrically in contact with the case of the starter motor.
I know the pole shoes have to be insulated from the field windings but is it ok if they are insulated from the case by a layer of paint ? Do the shoes need to be gounded better than just though the mounting screws ?
Also if anyone has any tips for a basic newbie doing soldering this way, I could sue some help. Last time I used a soldering iron yo heat with a torch, was in highschool metal working class. Mucho years ago. Have done lots of smaller electrical wire soldering with an electric soldering gun and small soldering pencils, so I know when solder is flowing etc.