Greg Hollinger
New member
- Joined
- Nov 6, 2011
- Messages
- 5
- Tractor
- McCormick
Hello folks,
My neighbor has a McCormick (50-60 hp) we've been trying to repair. Dealer said it was injector pump and had it rebuilt - did not fix. Problem: as you run the tractor under load, approx. 10-15 min. into job, it starts acting as if it's grasping for power and struggling to keep up the rpm's (like water or air in fuel). If you stay on the load (cutting moderately heavy hay), it will eventually choke itself off. Seems obvious to be fuel related. Other things done already: Tank drained and new fuel, injectors bled. If you wait 30 minutes, tractor will start back and resume work until it eventually happens again. You can hear the fuel pump kick on when key is activated, but it sounds "bubbly", like it's sucking air into the system. I really think air is getting into the fuel system, but I just don't know where. Any leads?
My neighbor has a McCormick (50-60 hp) we've been trying to repair. Dealer said it was injector pump and had it rebuilt - did not fix. Problem: as you run the tractor under load, approx. 10-15 min. into job, it starts acting as if it's grasping for power and struggling to keep up the rpm's (like water or air in fuel). If you stay on the load (cutting moderately heavy hay), it will eventually choke itself off. Seems obvious to be fuel related. Other things done already: Tank drained and new fuel, injectors bled. If you wait 30 minutes, tractor will start back and resume work until it eventually happens again. You can hear the fuel pump kick on when key is activated, but it sounds "bubbly", like it's sucking air into the system. I really think air is getting into the fuel system, but I just don't know where. Any leads?