arlen4720
Veteran Member
- Joined
- Jul 6, 2012
- Messages
- 1,277
- Location
- Southeast Minnesota
- Tractor
- JD 4720, JD X748SE, JD 997, Farmall "B", Gator 865R, JD 320D Skid Steer
Did you close the valve to the fuel filter body, BEFORE you removed the old filter? If you did not do that, it is one of the biggest reasons for air locking these fuel systems. If you close the valve first, then do your work, there is fuel all the way up to that valve, and no air. Once your new filter is on, simply open the valve and use the manual priming pump lever on the side of the engine. This is how I do it on my X740 and I have no problems.
That's a good point about closing the valve. I always have did that, but in 8 years of ownership ( and 7 fuel filter changes), I never knew about the hand primer:mur:
Is it on the left side of the mechanical fuel pump? I see a little lever there. Maybe snap a pic of yours, if you don't mind.
Funny it doesn't mention it in the OP manual.
JDTank, after a fuel filter change, using the primer, you don't have any excessive cranking?
I learned something good today, I'm happy.