I'm about at wits end with my M8200, despite forum scouring, many days of fiddling and consulting my 80 year old farmer neighbor who seemingly can fix anything and is also baffled. So I'm on here looking for tips.
It all started while I was picking corn on a nice side slope and ran it out of fuel. Pulled up a fair amount of gunk so went and changed the fuel filter and cleaned the separator. Despite my best efforts there continues to be an air leak somewhere in the system, seemingly in the fuel separator, but I can't seem to track it down.
I can purge the system, either with the hand pump or by pressurizing the tank and the tractor will start up and run fine. I can run my grinder all day with no issues. If I let it sit overnight, air collects somewhere in the system and it'll conk out on me. I've gone through every connection fore of the fuel tank and found no obvious leaks.
Recently I suspected the water separator. There is air tidaling in the separator when utilizing the hand pump and also when the tractor is running. To me this indicates the leak is at the separator or "upstream" somewhere. Yet despite this air the tractor runs fine once I get it started. Is the air in the housing normal? I wouldn't think so. However I can remove the entire separator component, splice the lines together and the tractor runs fine, starts up the next day and no issues.
The two connection elbow joints show on the separator actually pivot/can be removed. There are no O-rings in the parts diagram, but it does look like there is a groove for one and I could hear air here when I pressurized the unit. I have put pipe dope on both, assembled the unit in entirety and it holds pressure to 40psi with no leaks. I have a new filter and main o-ring on this as well. Yet add this back onto the tractor and I get the same result of not starting after sitting. I am baffled.
The parts diagram doesn't show any filter in the tank, which is a pain in the butt to remove and diagnose so I haven't worked on that end yet and I thought I'd see if anyone had any good ideas before I did. Advice is much appreciated.
It all started while I was picking corn on a nice side slope and ran it out of fuel. Pulled up a fair amount of gunk so went and changed the fuel filter and cleaned the separator. Despite my best efforts there continues to be an air leak somewhere in the system, seemingly in the fuel separator, but I can't seem to track it down.
I can purge the system, either with the hand pump or by pressurizing the tank and the tractor will start up and run fine. I can run my grinder all day with no issues. If I let it sit overnight, air collects somewhere in the system and it'll conk out on me. I've gone through every connection fore of the fuel tank and found no obvious leaks.
Recently I suspected the water separator. There is air tidaling in the separator when utilizing the hand pump and also when the tractor is running. To me this indicates the leak is at the separator or "upstream" somewhere. Yet despite this air the tractor runs fine once I get it started. Is the air in the housing normal? I wouldn't think so. However I can remove the entire separator component, splice the lines together and the tractor runs fine, starts up the next day and no issues.
The two connection elbow joints show on the separator actually pivot/can be removed. There are no O-rings in the parts diagram, but it does look like there is a groove for one and I could hear air here when I pressurized the unit. I have put pipe dope on both, assembled the unit in entirety and it holds pressure to 40psi with no leaks. I have a new filter and main o-ring on this as well. Yet add this back onto the tractor and I get the same result of not starting after sitting. I am baffled.
The parts diagram doesn't show any filter in the tank, which is a pain in the butt to remove and diagnose so I haven't worked on that end yet and I thought I'd see if anyone had any good ideas before I did. Advice is much appreciated.
