Rolled my tractor....Engine won't turn over!

[HawaiinFarmer]

Just rolled my Kubota L5038 HSTC. Turned the motor off as soon as it flipped(slow and softly) on it's side . Righted it in about 15 Min. Went to turn it over and nothing. Burned my starter thinking the clutch safety switch was not working. Took the injectors off (thinking oil was loaded in the heads) still not turning. Drained the oil from the motor to see if any metal fragments from a failed bearing nothing. Next step is to take the pan off and see if I can see any damage but hoping for help before I go any further.......

 

[Willl]

Can you turn it over by hand ?

 

[HawaiinFarmer]

No,tried to turn over manually and nothing. Wondering if it has to do with the hydrostatic transmission. It seems like a pressure lock of some kind because when I first tried it manually I was able to turn it a half turn and then it locked up. No grinding noise and again no debris of any kind in the oil. Thanks for the reply Will

 

[DanD78]

Did you just remove the lines from the injectors or pull them out of the head. You need to remove the injectors from the head, then try cranking by hand first then crank it over until nothing blows out. It could be your hydraulic pump or hydrostatic pump but probably not.

Dan

 

[CHDinCT]

I'm no mechanic, but could it be hydraulic lock from coolant getting into the cylinders? The only thing about that is if you crank it in this condition, you could have caused severe engine damage as the coolant won't compress. Hope it's something simple.

 

[art]

It's hard to say but the 1/2 revolution tells me it's locked up. I'd not worry about the base yet.

 

[curtisfarmer]

There are many possibilities. The tranny linkages may be "tweeked" and are closing a sfaety servo switch. There could be liquid in the cycliders. Battery connections may look ok but may have a fray somewhere and bleeds required cranking amps. Fuses may have been snared. Make sure the machine is level for sometime befroe attempting restart, can cause damage if fluids are in engine cyclinders. Good luck.

 

[HawaiinFarmer]

Dan Curtis & Chris, Removed the injectors from the cylinders. Dipped a long rod in to see if any oil was on the upper side of the heads,bone dry.

Curtis: You talked about a safety servo? any more info on that.That's the direction I'm thinking. Replaced the battery thinking that was why my starter was weak..starter was smoked! Replaced the starter and I'm not going to crank it until I can manually turn it. Starter rebuild $800.00 +

Curtis: I also put the tractor up to see if the linkage was the issue,but weather it's in high med low 2 wheel 4 wheel all tires spin? Is that due to it being hydrostatic tranny or is that a linkage issue??

 

[rdsaustintx]

THIS THREAD NEEDS PICS

Glad you're OK. No idea why it won't crank though. Welcome to TBN!

 

[curtisfarmer]

I would focus on the HST pedal linkage and the wiring there....as well as the seat safety switch. Does your model have the clutch depress safety switch also? Check the PTO cable and switch as well. It seems electrical to me and I would check all of the above plus the fuses. $800 for the starter....Yikes!!