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It doesn't have enough compression. you need to do a compression test. My guess is you have bent connecting rods.

You will need to remove the rocker shaft but not the valve springs. It is good practice to keep the pushrods in the same place you removed them from. You can't remove all the head bolts with the rocker shaft in place.

No one here who regularly works on Kubota tractors is going to say you can safely run that fuel.

It has a mechanical lift pump with a lever on it, just pump it up. There will be enough residual pressure to see the spill happen

These engines had a problem with getting gasoline in the oil when operated in colder climates. Have you checked that and changed the oil? These were built by Subaru,

There should be a plug on the bell housing that you can remove to see the marks. I haven't seen a RTV1140 for 6 years or so and I never did a spill test in one but I have done it on many other models. There are no marks under the cover that will help you set the timing. ( Unless the engine...

The timing marks are on the flywheel

You don't need to remove the cover to do a spill test

I have had good luck siphoning the fuel out of Kubota fuel tanks with a large hose ( 3/4 heater hose) to clean debris from the tanks. I did it just last year on my BX24d successfully. I then installed a strainer in the fuel cap port to catch anything that might get in there. I have done on...

W What will you use as a tachometer signal? ( the new Kubota cluster is quite nice and will add value to your tractor)

You don't squirt oil into the cylinders of a diesel unless you want bent connecting rods! ( Bent connecting rods might be why this one won't start?)

If someone has notched the frame so the pto valve can be removed you can remove the bolt holding it in and the valve will slide right out. it is a simple "barrel" valve. Look for a small piece of silicone caught in the port of the piece you took out.

PTO engagement is hydraulic on that tractor. Anything electrical would just cause the engine to stop if there was a fault. A common cause for the pto not engaging is a blockage in the PTO control valve. It is a simple repair, but due to the way the tractor is built requires the removal of the...

have you bled the air out of them?

Get a large hose like a length of heater hose and siphon the tank being careful to move the end in the hose around the bottom of the tank as much as you can. run the fuel into a clean pail and you'll be able to see if junk gets siphoned out of it. I have done this successfully on quite a few...

You can grind a notch in the frame so the pto valve can be removed without removing the transaxle. Then it is a 5 minute job to remove the lock bolt and slide the pto valve out and remove the piece of silicon. I don't think it will weaken the frame of the tractor enough to matter.

Make sure you are getting good fuel flow from the fuel tanks to the primary filter. I have often seen dirt or whatever it is in the tanks restricting flow

I installed one of these on my BX24 to prevent junk from getting into my fuel tank...

Not a difficult job, but you rarely get off with just a head gasket! Those engines almost always crack their heads if they have been overheated and are blowing coolant.

He is right! It is relatively easy to bypass the controller and provide basic up and down. The outside control on the rear fender actually does this. You don't have position or draft control but it will go up and down and hold.