Mechanical (4HK1) 1B-3 installation 2. Connect the oil level gauge guide tube to the cylinder head cover. 1. Cylinder head cover installation 1. Align the head cover gasket to the cylinder head cover. tightening torque 19 N m { 1.9 kgf m / 14 lb ft } 3. Install the bracket to the cylinder head cover. 2. Install the cylinder head cover to the lower cover. tightening torque 24 N m { 2.4 kgf m / 18 lb ft } tightening torque 18 N m { 1.8 kgf m / 13 lb ft } 4. Install the air leak pipe to the bracket and EGR cooler. Note Referring to the tightening order in the diagram, temporarily tighten all bolts and then completely tighten them.
Note The existence or nonexistence of the equipment varies depending on the machine manufacturer. tightening torque 24 N m { 2.4 kgf m / 18 lb ft } Bracket tightening torque 22 N m { 2.2 kgf m / 16 lb ft } EGR cooler 1. Air leak pipe 2. Oil level gauge guide tube 3. Ventilation hose 4. Bracket 1. Cylinder head cover 2. Gasket 3. Lower cover 2. Ventilation hose connect 1. Connect the ventilation hose to the air breather.