Hello All, 500B s/n 1010100594 with a mechanical issue that has got me scratching my head.
What I know so far...
I can bar the engine over pretty much 360 degrees and then it locks up, then I can go all the way back the other way and then locks. It clunks when it stops, and then ticks again when I back it off. Other than that It spins very easy with the injectors out. Sound is coming from the rear passenger side of the motor around piston #8. pulled the pan and con-rods and crank looks ok. Pulled passenger side valve covers and the pushrods and valve tops are still in one piece. Valves look like they cycle correctly when I bar the motor over. Small driveshaft under the cab floor does not turn when I bar over.
Has anyone got any idea what the issue may be? Possibly a bent, chipped or dropped valve? Is there anything that runs off of the flywheel that could be jamming up in the gears? It amost sounds like there is something loose getting jammed, and then releases when I back it off. Maybe possibly in the hydraulic pump itself locking up ? Any inspection cover I can take off?
I’m planning on picking up a bore scope camera to look in the cylinders next week. Really good machine otherwise. Undercarriage looks brand new and very low hours. Just need to get it running
What I know so far...
I can bar the engine over pretty much 360 degrees and then it locks up, then I can go all the way back the other way and then locks. It clunks when it stops, and then ticks again when I back it off. Other than that It spins very easy with the injectors out. Sound is coming from the rear passenger side of the motor around piston #8. pulled the pan and con-rods and crank looks ok. Pulled passenger side valve covers and the pushrods and valve tops are still in one piece. Valves look like they cycle correctly when I bar the motor over. Small driveshaft under the cab floor does not turn when I bar over.
Has anyone got any idea what the issue may be? Possibly a bent, chipped or dropped valve? Is there anything that runs off of the flywheel that could be jamming up in the gears? It amost sounds like there is something loose getting jammed, and then releases when I back it off. Maybe possibly in the hydraulic pump itself locking up ? Any inspection cover I can take off?
I’m planning on picking up a bore scope camera to look in the cylinders next week. Really good machine otherwise. Undercarriage looks brand new and very low hours. Just need to get it running