We have starter problems with our Fiat Allis 10 and I took it to him.

For the record we have an EFEL starter - seems to have been a high quality knock off copy of a Marelli with differences - in this case the brushes at least.

The good news is that he reckons after machining and growler testing that our armature should last a couple of thousand starts.

The bad news is that, due to his RSI problems, I'll be doing the undercutting and grinding the available brushes to fit.

And also bad - seems the connection between the Fiat parts book and suppliers and Marelli parts is no longer in operation

Marelli is still in/(maybe back in) business and seems to have some connection with what became of Lucas now.  The auto elec I use doesn't seem to be able to get parts either.

There might be a China connection to the Marelli starter but supply might be questionable.  I can't find one on EFEL.  We can get a new starter if we had to go that way and price is such that any "expensive but it might work" fixing would push things that way.

One of the dealers has a second hand armature and new brushes.  But procrastination came to my rescue - our starter is an EFEL, not a Marelli.  The brushes are not the same so likely the armature also.  The autolec has found the special tool that strips the armature so he put it in his lathe and reckons there is enough commutator for a couple of thousand starts and it passes the "growler" test.  

He has RSI problems so I get to undercut the micas.  Looked like I was going to have to grind brushes to suit but he's found a new set.  So we will go with him for now - I have been dealing with him for somewhat more than 50 years.