6. No one has said an alternator will damage an ammeter.
I agree. That's my point. Likely because an alternator will not damage the ammeter but I am curious if someone has experienced that situation. Yet we continue to have people genuinely concerned about whether or not their ammeter can 'handle' a 60 amp alternator when in fact it would be a rare instance that the ammeter sees anywhere close to the alternator max output. And yes by all means fuse it or install a fusible link in the battery charge wire at the starter solenoid to protect the harness including the ammeter.
Mark
