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  1. M

    B5100E 3 point hitch leaking down

    The 3 point hitch leaks down pretty fast even without an implement attached. Is this difficult repair or something simple as an o-ring? I have a partial manual that shows the disassembly but not any diagnosis charts. I don't want to tear into this thing completely if there is a simple repair...
  2. M

    Z500 fuel in oil

    I just finished replacing a piston, bearings and oil pump. (replaced piston due to blowby caused by a crack between ring lands) I have filled the engine with oil to the correct level. After running for 30-45 minutes the oil level has increased and is thinner causing oil pressure to drop. This...
  3. M

    Z500 cam, crank, IP timing marks

    I'm rebuilding my Kubota B5100E tractor engine. I've only worked on engines with timing chains or belts never gears with an IP pump. When I line up the 1 mark with the crank and center gear, the 2 mark with the cam gear and the 3 mark with the IP and rotate the engine they are no longer lined...
  4. M

    B5100E Blowby and low oil pressure

    I am a new tractor owner and a school bus diesel mechanic. Picked up this B5100E for $900. It run but has a lot of blow by. I installed an oil pressure gauge and has about 20 psi oil pressure at 1/2 throttle and no oil pressure at idle. I have removed the pistons and one of them has a broke ring...