My brothers L2900 has been running great for years, then I made a stupid mistake. I put about 2 gallons of gas in the diesel tank which was 1/3 full. I started mowing and the tractor started to run funny. I shut it down and went back to the shed and checked the fuel can. Yep, gasoline...
The first thing I did was remove the fuel bowl/filter and drained the tank. The fuel filter was clogged and there was gunk in the bowl. After cleaning the bowl, I installed a new filter and filled the bowl with diesel before screwing the ring back on. Next, I opened the air vent cock (knurled knob) and started the tractor. It started up and ran for a few minutes and then I closed the bleed screw. The engine died. So, I opened the bleed screw and started it up again. I could get the RPMs up to about 1500 before it started to die. Backing off the throttle, it would rev back to 1500. Every time I shut the bleed screw the engine would die.
I was able to limp the tractor back to the shed, but the behavior didn't change. The engine would idle up for a 30 seconds and then the RPMs would drop and almost stall out. There is no skipping/misfire, so it doesn't appear to be a single injector issue. It will die when I close the bleed screw and won't rev to more than 1500 rpm. On and off, the engine ran for 30+ minutes. So I'm pretty sure it has clean diesel, but there must be trash or air in the fuel system. Anyone have some advice?
The first thing I did was remove the fuel bowl/filter and drained the tank. The fuel filter was clogged and there was gunk in the bowl. After cleaning the bowl, I installed a new filter and filled the bowl with diesel before screwing the ring back on. Next, I opened the air vent cock (knurled knob) and started the tractor. It started up and ran for a few minutes and then I closed the bleed screw. The engine died. So, I opened the bleed screw and started it up again. I could get the RPMs up to about 1500 before it started to die. Backing off the throttle, it would rev back to 1500. Every time I shut the bleed screw the engine would die.
I was able to limp the tractor back to the shed, but the behavior didn't change. The engine would idle up for a 30 seconds and then the RPMs would drop and almost stall out. There is no skipping/misfire, so it doesn't appear to be a single injector issue. It will die when I close the bleed screw and won't rev to more than 1500 rpm. On and off, the engine ran for 30+ minutes. So I'm pretty sure it has clean diesel, but there must be trash or air in the fuel system. Anyone have some advice?
