I have a case 1390 that has started having a fuel issue. At first I noticed that while running it would idle up and down quite often. The issue then progressed to when I would shut the tractor down for the night and get up to run it the next day it would immediately crank up and then die like it ran out of diesel. I would bleed the lines going into the injectors and it would run fine but with the same odd idle.
I assumed that the fuel filters needed changing but after changing both filters this did nothing to resolve the issue. I tried cleaning the lines where they go into the injectors and make sure they were tight, but no change.
Now the tractor will run for a bit and then just die and you have to rebleed the lines again to get it going.
I replaced the fuel pump about a month ago because the old one went bad and I had diesel in my oil. I pulled the pump yesterday and took it apart and cleaned it, I did notice that it had some nasty water in the upper portion(the bowl?). The rubber diaphragm looks fine and when I hit the manual pump lever it all seems to work fine. I checked all the lines I can see and all seem to be tight but I am still having this issue of it dying and now it happens more frequently.
It seems like I am getting air into the fuel system from someplace, where should I check, and how can I check? A buddy suggested I hook up a air line to the start of the system and see where diesel blows out, I just haven't had a chance to do that yet. Also, could it be a issue with the fuel pump I bought? Has anyone ever had an issue like this before?
I assumed that the fuel filters needed changing but after changing both filters this did nothing to resolve the issue. I tried cleaning the lines where they go into the injectors and make sure they were tight, but no change.
Now the tractor will run for a bit and then just die and you have to rebleed the lines again to get it going.
I replaced the fuel pump about a month ago because the old one went bad and I had diesel in my oil. I pulled the pump yesterday and took it apart and cleaned it, I did notice that it had some nasty water in the upper portion(the bowl?). The rubber diaphragm looks fine and when I hit the manual pump lever it all seems to work fine. I checked all the lines I can see and all seem to be tight but I am still having this issue of it dying and now it happens more frequently.
It seems like I am getting air into the fuel system from someplace, where should I check, and how can I check? A buddy suggested I hook up a air line to the start of the system and see where diesel blows out, I just haven't had a chance to do that yet. Also, could it be a issue with the fuel pump I bought? Has anyone ever had an issue like this before?