text: When engine is removed, be sure engine is securely attached to engine stand. If engine falls from the stand, serious bodily injury
  could occur, and the block and crankshaft could be damaged.
  Use care when removing snap and retaining rings. Snap and retaining rings are under spring tension and can act as projectiles
  when released, and could cause severe eye injury.
  Compressed air used for cleaning purposes will not exceed 30 psi. Use only with effective chip guarding and personal protective
  equipment (goggles/shield, gloves, and so forth).
  Keep clear of test spray from injection nozzle. Fluid at test pressures can penetrate skin, causing infection and possible death.
  If crankshaft is turned in the wrong direction, the tab on the upper bearing half will be pushed between the crankshaft and main
  bearing bore in the block. This could cause damage to the block and crankshaft.
  Be careful not to scratch or damage crankshaft when removing connecting rod caps and upper half of bearings. Any damage to
  the crankshaft could result in premature engine failure.
  (1) Disconnect fuel supply lines from
  injectors and remove fuel injection
  nozzles (Para 4-3).
  (2) Attempt to rotate crankshaft manually
  (a) If crankshaft can be rotated
  manually, go to Step 2 of this fault.
  (b) If crankshaft cannot be rotated
  manually, remove engine from
  vehicle (Para 3-3), and inspect
  bearings for bearing seizure
  (Para 3-9) and/or pistons for piston
  seizure (Para 3-16). Replace
  components as necessary.