[Poppa Dave]

Howdy Gang!
My son just picked up a really nice Minnie Mo M602. Well he might have gotten a good deal on it.
Long story short, the farmer by-passed the two fuel filters and plumbed the fuel line directly into the Rossa or Rossi (don't remember what it's name was) injector pump.
He's getting fuel to the pump and a tad bit past it, but not enough to keep it running for more than about 20 seconds with the throttle wide open. That said we suspect the fuel pump needs a rebuild.
He contacted the local parts houses and they all looked at him and said, "You have a what kind of injector pump on a what the heck was it again tractor?"
So here I am, hoping that someone might have an answer.
Thanks

 

[QAFarm]

I googled Rossa injection pump (google always knows) lol it looks like ther either related or same manufacturer of stanadyne pumps. eBay has a bunch of part and manuals. Here is video on rebuilding a Rossa aka stanadyne injection pump from an Oliver. http://m.youtube.com/watch?v=bmCzYUbeRcE&desktop_uri=/watch?v=bmCzYUbeRcE

 

[mmolines]

Remove return valve setup on top of pump. It is sticking and shutting off return of pump. Pump will fill up then motor will quit. Supposed to be a check valve with a ball in it. Make sure filters are put back in input line!