ptfarmer
Well-known Member
- Location
- San Antonio, Tx
I am having a problem with my dad's 6640 (it's a rotary style looking, not the inline style injector pump) it seems to loose it prime on occasion after the engine has been shut off. It doesn't matter if the tractor has been sitting for a minute, or for a week. It doesn't have a lift pump separate from the injector pump, it only has a hand primer on the filter housing. When it looses it's prime it take a bit of the hand primer to get it to run again. All the fuel lines are good, I even dropped the lower tank beneath the cab, and made sure there was no junk in it (I also replaced the non working fuel level sending unit). I also replaced the electric fuel shutoff on the injector pump so the question is, is the injector pump itself starting to go bad??