Tractor wont start on incline
- Thread starter Komrade
- Start date
Your soil looks almost as rocky as mine. You have my condolences.
was digging shale/bedrock later.. and it's next to a river/creek, tons of boulders.
If creek is called "Stoney" it tells you something.
Got 30 mins out of tractor today.. Will pick up the tool (big pliers) to take out the filter later.
Powerwashed the engine compartment for when I'll be dealing with fuel.
If creek is called "Stoney" it tells you something.
Got 30 mins out of tractor today.. Will pick up the tool (big pliers) to take out the filter later.
Powerwashed the engine compartment for when I'll be dealing with fuel.
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changed filter. plenty of fuel flow observed by gravity, as I turned the "off" switch improperly, and scrambed to test all settings to find the true "off" (to stop the flow).. although i don't think this proves anything
only got a few mins out of tractor
can't hold RPMS above 1500.
can't figure out what socket tool one needs to get to the pump nuts. The nuts are partially behind the pump casing.
based on other reading, the fact that tractor works for a while, and with full tank, not sure if pump is an issue.
Just two screws based on earlier input are kinda hard to get to..
Regular socket wrench can't get to it, would require removing stuff in the way.
only got a few mins out of tractor
can't hold RPMS above 1500.
can't figure out what socket tool one needs to get to the pump nuts. The nuts are partially behind the pump casing.
based on other reading, the fact that tractor works for a while, and with full tank, not sure if pump is an issue.
Just two screws based on earlier input are kinda hard to get to..
Regular socket wrench can't get to it, would require removing stuff in the way.
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Notes for self:
www.haytalk.com
other ideas
* take off filter again and see if there's fuel screen
* blow back tube coming from fuel tank
* blow all fuel tubes
* make sure there are no cracks in fuel tubes (e.g. sucking air instead of fuel)
* run something other than backhoe (e.g. drive/move boulders) and see if tractor has same issues
Note, I Just replaced a hose on backhoe right before these problems started. The tractor has been used pretty regularly this season w/o any issues (other than one time I seem to have lost power when I backed into a ditch), with a couple of straight hours grading, moving mulch, just a few days prior to starting on the ditch.
Kubota fuel prob
www.haytalk.com
other ideas
* take off filter again and see if there's fuel screen
* blow back tube coming from fuel tank
* blow all fuel tubes
* make sure there are no cracks in fuel tubes (e.g. sucking air instead of fuel)
* run something other than backhoe (e.g. drive/move boulders) and see if tractor has same issues
Note, I Just replaced a hose on backhoe right before these problems started. The tractor has been used pretty regularly this season w/o any issues (other than one time I seem to have lost power when I backed into a ditch), with a couple of straight hours grading, moving mulch, just a few days prior to starting on the ditch.
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There is no fuel screen
If tractor is starved of fuel via switch above water separator/filer it sucks up all the fuel, indicating pump works.
The water separator cup fills very quickly once switch is turned on, indicating no obstruction in fuel tank.
I ran it with fuel tank cap cracked, and it didn't help
At this point tractor sputters and shuts off once it warms up even if left on low/idle.
If tractor is starved of fuel via switch above water separator/filer it sucks up all the fuel, indicating pump works.
The water separator cup fills very quickly once switch is turned on, indicating no obstruction in fuel tank.
I ran it with fuel tank cap cracked, and it didn't help
At this point tractor sputters and shuts off once it warms up even if left on low/idle.
hube2
Veteran Member
So I don't have the same kind of tractor, but I'm always interested in topics like this because it gives me things to look at if I run into similar problems in the future.
So curious I did some reading.
Could you have a faulty fuel shut off solenoid or possibly a problem with the wiring to it? This shows a picture of what it might look like Amazon.com: Mover Parts Fuel Shut Off Solenoid 1A021-60010 1A021-60015 for Kubota V2003 V2203 V2403 D1503 D1703 D1803 L2800 L3130 L3200 L3240 L3400 L3430 Bobcat S150 S160 S175 S185 T190 AL275: Automotive
From what I understand it should only engage to turn off fuel flow when you turn the key off and then should disengage after a few seconds to allow you to start it again. Means that ignition wiring could cause it to engage if there is some type of problem there.
Here's a tread from here about someone else having an issue with it Kubota L3430GST Fuel shut off solenoid clicking on & off
So curious I did some reading.
Could you have a faulty fuel shut off solenoid or possibly a problem with the wiring to it? This shows a picture of what it might look like Amazon.com: Mover Parts Fuel Shut Off Solenoid 1A021-60010 1A021-60015 for Kubota V2003 V2203 V2403 D1503 D1703 D1803 L2800 L3130 L3200 L3240 L3400 L3430 Bobcat S150 S160 S175 S185 T190 AL275: Automotive
From what I understand it should only engage to turn off fuel flow when you turn the key off and then should disengage after a few seconds to allow you to start it again. Means that ignition wiring could cause it to engage if there is some type of problem there.
Here's a tread from here about someone else having an issue with it Kubota L3430GST Fuel shut off solenoid clicking on & off
rbargeron
Elite Member
Something might be interrupting power to your "stop solenoid". On a L3430 the stop solenoid needs 12v power to allow starting.
The actual performance of fuel solenoids has evolved. On older models the solenoid activated to EXTEND and cut the fuel for a few seconds (you can hear it click off a few seconds later, retracting to its rest oposition enabling fuel flow for starting next time).
On newer models it's function is reversed. Its rest position is EXTENDED, pushing the fuel rack to the no-fuel position. On KEY-ON the new type WITHDRAWS, allowing fuel to flow. You need 12v to it to allow fuel into the injection pump.
Purists (old farmers, other fossils like me) preferred it the old way, if you could turn the engine by just turning a jacked up wheel the engine might fire and run (dead batt - no problem). The product liability lawyers renamed that feature a shortcoming - and stamped it out. See post 20 for pics of which is which.
The actual performance of fuel solenoids has evolved. On older models the solenoid activated to EXTEND and cut the fuel for a few seconds (you can hear it click off a few seconds later, retracting to its rest oposition enabling fuel flow for starting next time).
On newer models it's function is reversed. Its rest position is EXTENDED, pushing the fuel rack to the no-fuel position. On KEY-ON the new type WITHDRAWS, allowing fuel to flow. You need 12v to it to allow fuel into the injection pump.
Purists (old farmers, other fossils like me) preferred it the old way, if you could turn the engine by just turning a jacked up wheel the engine might fire and run (dead batt - no problem). The product liability lawyers renamed that feature a shortcoming - and stamped it out. See post 20 for pics of which is which.
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rbargeron
Elite Member
The above comment in RED needs some new light on it. There are two versions of the stop solenoid and two ways they work
The function of the "STOP SOLENOID" got reversed around 2003 with intro of L..30 models (and other products).
Until 2002 the stop solenoid acted on key-off to actively cut the fuel for a few seconds to stop the engine. A bit later it RESETS, enabling fuel to flow for starting next time. This arrangement is in use on 149 Kubota models - thru the Lxx10's.
Starting in 2003 the design changed. On 96 models since that time the stop solenoid still acts on key-off to actively cut the fuel to stop the engine BUT IT DOESN'T RESET. With the later solenoid, the key needs to be turned on to actively power it to allow fuel to flow.
Here are the two solenoid versions - Komrade's tractor has the later one - if anything cuts the 12v to it, the fuel stops.
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