engine overhaul, Kubota v1505 engine rebuild, install piston, crankshaft, cylinder head.. 

hello brother, if there's a bubble in your water lines, there's a possibility that a head gasket is damaged, try also to remove the thermostat and test the machine, also check your radiator maybe it's clogged, check also your radiator fan rotation speed, check your water pump impeller also..try to check all of these possible issue maybe it will help to solve overheating problem..

Hi brother, tnx for the question.. normally, white smoke is cause by coolant get into your cylinders, please check for any crack from head gasket..or check any mix of coolant in your fuel.

maybe engine over speed, please check your sensor, or check ignition supply, need to check electrical side, or check also your fuel lines

hi hello, check electrical supply from ignition switch going to injection pump solenoid

hi, please check your injection pump shut off sensor or ignition switch..

Hi tha is for taking the time to get back to me the original issue was diesel mixing with oil so changed these two part based on a Kubota specialist information but then the engine seems to run away at max rmp even the fuel shut off valve or anything don't work apart from checking it by shutting off air supply do you think it could be running on oil in the sump?

check your engine speed sensor, it seems having electrical issue

around 12,000 SAR

lahat ba ng piston sir may tagas ang exhaust valve? check nio sir baka may putol na piston ring o baka Malaki ang gap ng ring..

@@OFwMechanicTV bago po ang piston ring at piston ang liner bagung din po 1 at 2 lang po may tagas

recheck mo nlng piston 1 &2 sir, wala naman iba panggagalingan langis nyan valve seal lng o piston ring..ndi kaya sir baka overflow injector nyan

@@OFwMechanicTV ok napu sir sa piston lang po bagu kasi yung liner d pantay ang pagka gawa walang clearance ang piston