I'm not real fond of Perkins diesels...
Some years ago, I went into a dealership and there was 6 or 7 Perkins powered orchard tractors in there, all with the same cam problem!
Perkins seem to have more leaks, when they get older and a few days ago, a friend of mine was working on one. It's only a few years old and has head gasket and other problems.
He told me, getting parts for it has been a pain, because it had CAT on, it has Perkins on it and some other name too, getting the RIGHT parts has been a problem. Little things like that, really bug me and make me not want that brand of engine.
SR