bill onthehill
Senior Member
I have owned this 1988 machine for 8 years. This spring i had it over loading some farm equipment at my Amish neighbor. I was getting low on fuel and got 5 gallons from him. When I went to bring it home the next day I had a hard time getting it to run without ether at first. Brought it home and changed both fuel filters in case it got some water in it. When I can get it started it seems to run decent but will not stay primed if it sits more than a day. I started at the tank and removed a piece of rubber line where it looks like it may have had an inline filter. Fuel runs out of the tank easily. I took the line off the lift pump and blew back to the tank and you could hear the air bubbling in the tank. As near as I see it is a Case 4-390 motor with a Lucas injector pump. I can sometimes hand pump fuel to the Lucas and other times it does nothing. I bump the starter and it seems to pump fuel. It seems like a cam lobe is holding it collapsed at times. I wonder could the shutdown solenoid not be opening? I have also added a pic of the round disc with 2 wire leads coming off it. What is this? My thought was a low oil shutdown. Any ideas where to go next?