Loosen the adjusting screw locknuts. Loosen the adjusting screws until they stop. Remove the capscrews from the rocker lever pedestals. Remove and mark the pedestals and the rocker lever assemblies one at a time as to their location and position. Remove and mark the crossheads one at a time as to their location and position.… Read More »
Engine coolant temperature must be less than 60°C [140°F] Use the barring tool, Part Number 3824591, to rotate the crankshaft until the number 1 cylinder is at TDC. The TDC indicator is on the vibration damper. Align the vibration damper so the TDC indicator is at the 12 o’clock position. NOTE: If no TDC… Read More »
Overhead setting is only required at the interval specified in the appropriate Operation and Maintenance I Owners manuals, or when engine repairs cause removal of the rocker levers and/or loosening of the adjusting screws. Excessive valve lash prior to a repair or scheduled adjustment can indicate: • Incorrect valve set from a previous repair •… Read More »
Connect the crankcase ventilation oil drain tube connection to the cylinder block mounting plate. Connect the two crankcase ventilation oil drain tube connections to the rocker lever cover.
Clean the crankcase ventilation oil drain tube with hot soapy water. Dry with compressed air. Inspect the crankcase ventilation oil drain tube check valve for correct operation. The check valve should: • Allow oil to drain from the crankcase ventilation filter housing to the oil pan • Prevent crankcase gases from traveling up to the… Read More »
Disconnect the two crankcase ventilation oil drain tube connections from the rocker lever cover. Disconnect the crankcase ventilation oil drain tube connection from the cylinder block mounting plate. Remove the crankcase ventilation oil drain tube.
Depending on the application, two different breather systems are used. • An internal system, which is a part of the rocker lever cover assembly. • An external system, which mounts at the rear of the engine above the flywheel housing. Both systems are closed crankcase breather systems, meaning the crankcase gases are vented into the… Read More »
Install the crankcase ventilation filter housing support bracket mounting onto the top of the flywheel housing. Install the crankcase ventilation filter housing support bracket capscrews. Tighten the mounting capscrews. Torque Value: 18 N•m [ 159 in-lb ] Install the crankcase ventilation filter housing onto the support bracket. Install the crankcase ventilation filter housing mounting capscrews.… Read More »
Use the following procedure if the crankcase ventilation filter housing was disassembled to replace the crankcase ventilation filter. Refer to Procedure 003-021 in Section 3.
Clean the crankcase ventilation oil drain tube and crankcase ventilation filter housing support bracket with hot soapy water. Dry with compressed air. Inspect the crankcase ventilation filter support bracket for cracks and corrosion. Replace the support bracket if any damage is found. Inspect the crankcase ventilation oil drain tube check valve for correct operation. The… Read More »