when it started arc welding you pulled them off and didnt try to start it with reversed polarity, right?
Agreed, but with a reverse polarity hook up it couldve always fried a wire or connection. Thats the only reason I would say to verify the electrical system did not sustain any damage in addition to the starter, assuming the jump test has no result, meaning the solenoid was the "fuseable link".vermonster said:You either have power at your starter main at starter coming from batt. or you don't.
^vermonster said:Not sure about the relay but could just buy new 1. Should be pretty cheap so you can eliminate that. On almost every starter I have ever put in or taken out of a vehicle (100's) new/rebuilt or used you usually get sparking. Can be big sparks so that's normal but if your starter sprocket is not plunging and zinging. Your solenoid is shot ie. starter shot.