On-Board Welder/Alternator Welder?

[Jet]

If you have no rods,coat hangers, or other.
I've seen a guy use nickles, yes the ones with Thomas Jefferson on the front.
Clamped into jumper cables, connected to a battery that's disconnected from vehicle.
He welded a broken shifter back together on a VW bus after tiring of driving around in 2nd gear.
Seemed to work.

 

[dslywalker]

Alternator/Welder - JeepsUnlimited.com Forums
Saw this outfit
Mike

 

[fitzp20102]

Lots of alternators will work. I've many times taken an old 90 AMP alternator to my local rebuild shop that does starters and alternators, and the ask if I want it rebuilt with 120 AMP parts for the same price to get better output. Well heck yeah I do... So check with a shop that does that kind of work. You never know what you might be able to get out of a seemingly small alternator.

 

[Harveynailbanger]

seems to me the best alts to build a welder would be one with an external regulator, you would want it independant of the primary one so you dont strand yourself while welding.
what about welding off of a battery? install a dual battery system with an isolator so when you drain one you still have one to start jeep with? anyone ever try welding with a battery? ive heard about it but never done it.
Rick