I am going to buy the repair manual for the mf 4355.
I don't quite know how to do the diesel pump, $3,500-$5,000 is a lot of money for something I rarely use a year, but I have to fix it anyway.
I would assume there are special tools to do the job and the little I know is that they need to be pressure tested afterwards.
I would also assume that tractors should not be used with that pump.
How it took the evening so early I don't know, but one doesn't know if previous owners have had lousy diesel, I myself have once.
I have two dealers I can consult with, one is a branded workshop, the other is very skilled in agricultural implements and tractors.
Huge thanks for all the information you have given me
@timg very grateful for that.