I inherited a 1986 Kubota L245 and I have had it serviced quite often. I have recently ran into a problem that I'm looking for help with. I can run tractor 30-45 minutes and then it completely looses power and basically bogs down. I can remove the fuel cap and take off the fuel filter and get a steady flow of fuel. I have to let the tractor sit for a day or so and it'll start right back up and repeat the process again. Suggestions?????
Kubota L245
- Thread starter kubotaL2451986
- Start date
Your tractor is very basic.
The only safety switch is to prevent the machine starting in gear.
The fuel system appears to be fed to the injection pump by gravity alone with no electrical or mechanical pump needed to feed the injection pump.
My conclusion, in spite of the tests you have done, is that you are starving for fuel.
Perhaps crud in the tank which, when flowing to the injection pump manages to restrict the fuel flow out of the tank.
Buy some clear plastic hose to install between the filter and the injection pump so you can visually watch the fuel flow as the problems starts to develop.
Use a long enough hose so you can see it as you drive the tractor.
Look for air in plastic line as the engine starts to loose power.
Dave
The only safety switch is to prevent the machine starting in gear.
The fuel system appears to be fed to the injection pump by gravity alone with no electrical or mechanical pump needed to feed the injection pump.
My conclusion, in spite of the tests you have done, is that you are starving for fuel.
Perhaps crud in the tank which, when flowing to the injection pump manages to restrict the fuel flow out of the tank.
Buy some clear plastic hose to install between the filter and the injection pump so you can visually watch the fuel flow as the problems starts to develop.
Use a long enough hose so you can see it as you drive the tractor.
Look for air in plastic line as the engine starts to loose power.
Dave
Russell King
Well-known member
Lifetime Member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
I assume you have a metal tank and the bottom of the inside is rusted. My L185 would do a similar dying episode and that was the problem.
But you say you have good fuel flow at the filter after a while so it may just be something floating around inside the tank and plugging up the outlet.
I suggest you take the hose off the fuel filter inlet and let the tank drain into something you can see into. Watch the fuel flow and see if it changes over time. If it slows down then that indicates some restriction. After the tank is empty you should be able to see the bottom of the tank to see if it is black which means it is probably rusted. Then you can get some magnet down inside the tank to see if you can pick up any rust flakes.
Look at the fuel in the bucket to see if it looks clean or not. I guess you could put a fine filter in the fuel flow while draining to see if anything is in the filter. Could be rust or algae.
If not rusted I would try to look into the tank with a cheap horoscope camera you can hook to a smartphone. Get that off internet and get one that has a light on the end also. You may be able to see a little with the naked eye but there are some places I don’t think you can see.
Good luck and post back what you do and find
Sent from my iPad using Tapatalk
But you say you have good fuel flow at the filter after a while so it may just be something floating around inside the tank and plugging up the outlet.
I suggest you take the hose off the fuel filter inlet and let the tank drain into something you can see into. Watch the fuel flow and see if it changes over time. If it slows down then that indicates some restriction. After the tank is empty you should be able to see the bottom of the tank to see if it is black which means it is probably rusted. Then you can get some magnet down inside the tank to see if you can pick up any rust flakes.
Look at the fuel in the bucket to see if it looks clean or not. I guess you could put a fine filter in the fuel flow while draining to see if anything is in the filter. Could be rust or algae.
If not rusted I would try to look into the tank with a cheap horoscope camera you can hook to a smartphone. Get that off internet and get one that has a light on the end also. You may be able to see a little with the naked eye but there are some places I don’t think you can see.
Good luck and post back what you do and find
Sent from my iPad using Tapatalk
freewheel3
Active member
Equipment
MX5000DT LA852, BX1800D, B6000DT, B6200HSTD, B7100HSTD, L185, T1700HX, ZD1211
Take a telescoping magnet and see if you can collect any metal/rusty particles from the fuel tank. If you do find lose metal, get a magnet you can tie to a piece of baling twine (because it's strong) and drop it in the tank and tie the end to something near the lid and just screw the lid back on. Check from time to time. As lose parts move around they will get caught on the magnet.