This seems to be a relevant thread for my starter issue, so will start here. I have a 1950 Chevy 3100, with a 1960 261cu-in engine, I bought the truck after this conversion and I have no details other than what I've been able to determine by looking at engine codes, etc.. Right now I have not yet counted the number of teeth on the flywheel (will do that tomorrow), but the starter engage gear are 9 teeth. I do have a couple of questions I'm hoping folks can help me with.
My starter has gone out (stud is worn, button copper is worn, 1/2 of the brushes are worn). Looking to rebuild, but have also bought a NAPA 6v starter (Part #: RAY 2449651, as it was cheaper than all the piece parts to fix mine). The NAPA starter also has 9 teeth. A couple of questions then.
1) 1950 216 & 235 and specifically 6v systems seem to have used 139 tooth flywheels. By 1960 and the 261 all were using 12v and had 168 tooth flywheels... or so I've read. As the starters for both seemingly have 9 teeth each... how does one determine if the starter they have is for the right engine/flywheel ? This is a particular issue with the NAPA remanufactured unit, since it is matched by year and not engine.
2) Seemingly both starters are essentially the same for the floor button mechanical type starters (mechanically), just with different engagement gears. So worst case, if I swap the engagement gear off the NAPA starter with the existing starter.... that would work, right ? In other words the shafts would be the same I am guessing ? I'm trying to avoid taking the NAPA starter apart if its known that this will NOT work.
3) I am also having trouble finding a correctly listed mechanical "solenoid" (as most are calling it). For the older 1950 era starters, they are mechanical and look like what I have. However for the 1960 era starters they all seem to in fact be electrical solenoid type units and not a match for what I have. So unclear again which starter I actually have and unable to find any markings that would give me a clue.
4) The Voltage stud on starter body is worn, but I don't have the experience to know if its worn too much. I've buffed it up and it has a slant. Any insight as to if its fine like it is or needs replacement too would be appreciated. Changing the voltage stud looks to be significantly more difficult that just doing the springs and brushes, so if there is a link to that procedure or a video that would likewise be appreciated.
More questions than I anticipated, sorry 'bout that... but better to get it out there so various folks can comment on aspects they know I guess.
I really love this forum for all the great help and knowledge/experience.... you are greatly appreciated.