I have just started the process of dismantling my 07Z903021F 14V 190A alternator.
I had fried the rotor after second install.
A loose diesel return line allowed diesel to leak and touch the 12 volt alternator connection which killed it immediately.
The first give away of trouble was melting plastic smell, followed by voltage drop to 12 volts, excess diesel smell after test run. As the leak was from the return to the tank there were no performance issues from the engine.
Being short of funds and wanting to be more V10 independent. I decided I might just as well try and repair this unit while I saved for a replacement. It is already stuffed.
My Autolec friend test the alternator and found the rotor was the problem.
I will provide photo's of my progress.
Currently the rotor has been dismantled and I am setting up a jig to count the number of turns for replacing the wiring on the spool.
I will update with correct component id etc, but I just wanted to also hear from any other members that may have done this before.