I'm having a hard time bleeding the fuel pump. I'm getting and bleeding fuel into the filters ok but not into the fuel pump thus none through the injector lines. We're getting a slight drip of fuel from the bottom of the pump and am wondering if that is creating an air gap. The tractor was running fine before we had the steering motor valve rebuilt and replaced but now it won't start. Any suggestions how to bleed fuel system properly. It's gravity fed.
bleeding 1990 Ford 445C fuel pump
- Thread starter Burlick
- Start date
- Views: 2710
Jerry/MT
Elite Member
- Joined
- Feb 2, 2008
- Messages
- 3,141
- Location
- North Idaho-The Palouse
- Tractor
- New Holland TD95D, Ford 4610 & Kubota M4500
I would open the line between the filter and the injector pump (IP) and check for adequate fuel flow there. You should get a CONTINUOUS gush of fuel at that point. If it dribbles or is intermittent, you have a restriction of some sort between the tank outlet and that point. Work back to the tank to find it. It could be a pinched fuel line, crud at the tank outlet strainer, in the filter head passages, the fuel filter itself, etc.
If you do get a continuous gush of fuel, open the bleeder on the IP and open the throttle, then crank the engine until you have fuel squirting out of the bleeder hole. Make sure it's bubble free and then close it and try to start. If it doesn't start, bleed the injectors by opening the connection at the injector until you see bubble free fuel and then tighten. Usually by the time you get to bleeding the second injector it will start if the IP is OK.
