Jim.ME
Well-known Member
- Location
- central ME
I still believe the air is getting induced at or before the transfer pump. The transfer pump sends pressurized fuel to the filter. Iwould expect to see some wetness if there was leak at any point after the transfer pump.Unfortunately, new transfer pump hose and fittings all the way around have not done the trick so the problem lies elsewhere. When I replaced the old original fuel filter that was on the tractor with a new one after many starts at that time, it died on me because of air in the fuel, I purged it as per instructions in the owners manual and it started and ran fine until now. For some reason or another I am suspicious of something going on with the drain plug or the fuel filter housing itself, so have attached a photo of the housing without the fuel filter on it wondering if anybody sees anything amiss. Also, I wonder if I disconnect the fuel line from the fuel tank , fill something like a milk jug with diesel fuel put the fuel line in and pump the transfer pump and see if air is still going to the fuel filter.. if air is still present then that may eliminate a problem from the fuel tank? May I ask what is the proper technique for taking off the spring loaded clip that holds the filter on I am using a screwdriver underneath the back portion of the clip on the housing to wedge it up. at any rate if anyone has any suggestions or thoughts I’m all ears, thank you very much.
How much fuel is in the tank? That tractor does not pull fuel from the bottom of the tank, it has a pick tube incorporated with the fuel gauge sender from what I see in the parts book. There is a possibility there is a crack or rust hole in that pickup tube and when the fuel level in the tank is below the crack it would suck air.
Setting up a nurse tank (milk jug as you mentioned) with a hose to the inlet of the fuel pump and running the engine off that is one way to check this theory. Another way is to fill the tank to a level above the fuel sender and see if the air bubbles clear. You could remove the sender/pickup, plug one end of the pickup tube and apply air pressure to the other end and check for cracks.