My new tractor has been a freaking nightmare since shortly after I got it. I ran great when bought, ran great around the lawn using the bucket to fill in dirt for the landscaping.
Then I put the roto tiller on and went down to the food plot and tilled 600 ft. and the motor runs out of gas and shuts off. The fuel tank is full of new diesel. Hard start and till another 600 ft. and shuts off again, hard start and went up the hill back to the barn.
Changed the fuel filter and it runs great. Put the bush hog on and go back down to the plot and once again it runs for 600 ft. and shuts off. So I changed the fuel shutoff valve on the bottom of the fuel tank that has a filter. Starts up and runs 600 ft. and shuts off. It stalled 5 times going 1000 ft. back to the barn.
I cleaned the filter on top of the fuel pump and not really any dirt there. So I drained the 20 gls. of fuel and put in 5 gl. new diesel and the same results.
The fuel pump and injector pump both pump good strong flow.
So I did a posting on the MF Forum requesting help. I got the normal suggestions of new filter, clean the fuel pump filter, clean the shutoff valve filter. I did all these things and no help.
Finally a guy from New Zealand suggested that the fuel cap was not venting and causing a vacuum so just loosen the cap and don't tighten the final seal.
Today I loosen the gas gas and did a test run and I'll be damn as I was able to drive 1/4 mile at full throttle up and down my long driveway without a problem. Need to do a longer test yet but I just used my Ford 420 tractor to bush hog with last Friday. I have to haul hay home on Friday but I'm not ready to go on the road yet in fear of it stopping. But it does look promising. Such a simple thing and cause a big problem.
ASAP