G3408 and G3412 Engines Caterpillar


Turbocharger

Usage:

G3408 6NB



Illustration 1g00277614

(1) Turbocharger impeller

Refer to the following procedure to install the turbocharger impeller. This procedure should be done at room temperature.

  1. Put the impeller on the shaft.

  1. Put a small amount of 2P-2506 Thread Compound on the threads and the side of the impeller face that will be under the nut.

  1. Tighten the nut to the following torque.

    ... 14 to 17 N·m (10 to 13 lb ft)

    Note: Do not bend the shaft, or do not add stress to the shaft when the nut is loosened or tightened.

  1. Loosen the nut on the shaft.

  1. Tighten the nut to the following torque.

    ... 3.5 N·m (31 lb in)

  1. Tighten the nut by the following additional amount.

    ... 120 degrees

(2) Torque for the bolts that hold the backplate ... 10.2 ± 1.1 N·m (90 ± 10 lb in)

(3) Torque for the clamp bolts ... 14.0 ± 1.50 N·m (10 ± 1 lb ft)

Lightly hit around the entire area of the clamp with a soft faced hammer.

Tighten the clamp to the following torque. ... 14.0 ± 1.50 N·m (10 ± 1 lb ft)

(4) Bore in the bearings ... 15.921 to 15.931 mm (0.6268 to 0.6272 inch)

Diameter for the journal surfaces on the shaft for the bearings ... 15.875 to 15.885 mm (0.6250 to 0.6254 inch)

(5) Bore in the housing ... 24.961 to 24.973 mm (0.9827 to 0.9832 inch)

Outside diameter of the bearings ... 24.846 to 24.859 mm (0.9782 to 0.9787 inch)

(6) Clearance between the ends of the oil seal ring ... 0.20 to 0.38 mm (0.008 to 0.015 inch)

(7) End play for the shaft ... 0.08 to 0.25 mm (0.003 to 0.010 inch)

Put 5P-3931 Anti-Seize Compound on the threads of the bolts that hold the turbocharger to the exhaust manifold.

Tighten the bolts and the nuts that hold the turbocharger to the exhaust manifold to the following torque. ... 54 ± 5 N·m (40 ± 4 lb ft)




Illustration 2g00584351

(1) Turbocharger impeller

Refer to the following procedure to install the turbocharger impeller. This procedure should be done at room temperature.

  1. Put the impeller on the shaft.

  1. Put a small amount of 2P-2506 Thread Lubricant on the threads and the side of the impeller face that will be under the nut.

  1. Tighten the nut to the following value.

    ... 14 to 17 N·m (10 to 13 lb ft)

    Note: Do not bend the shaft, or add stress to the shaft when the nut is loosened or tightened.

  1. Loosen the nut on the shaft.

  1. Tighten the nut to the following value.

    ... 3.5 N·m (31 lb in)

  1. Tighten the nut by the following additional amount.

    ... 120 degrees

(2) Torque for the bolts that hold the backplate ... 10.2 ± 1.10 N·m (90 ± 10 lb in)

(3) Torque for the clamp bolts ... 14.0 ± 1.50 N·m (10 ± 1 lb ft)

Lightly hit around the entire area of the clamp with a soft faced hammer.

Tighten the clamp to the following torque. ... 14.0 ± 1.50 N·m (10 ± 1 lb ft)

(4) Bore in the bearings ... 15.921 to 15.931 mm (0.6268 to 0.6272 inch)

Diameter for the journal surfaces on the shaft for the bearings ... 15.875 to 15.885 mm (0.6250 to 0.6254 inch)

(5) Bore in the housing ... 24.961 to 24.973 mm (0.9827 to 0.9832 inch)

Outside diameter of the bearings ... 24.846 to 24.859 mm (0.9782 to 0.9787 inch)

(6) Clearance between the ends of the oil seal ring ... 0.20 to 0.38 mm (0.008 to 0.015 inch)

(7) End play for the shaft ... 0.08 to 0.25 mm (0.003 to 0.010 inch)

Put 5P-3931 Anti-Seize Compound on the threads of the bolts that hold the turbocharger to the exhaust manifold.

Tighten the bolts and the nuts that hold the turbocharger to the exhaust manifold to the following torque. ... 54 ± 5 N·m (40 ± 4 lb ft)

Caterpillar Information System:

Procedure for Replacing the Software for the Electronic Ignition System (EIS){1902} Procedure for Replacing the Software for the Electronic Ignition System (EIS){1902}
3054 and 3056 Industrial and Generator Set Engines Cooling System
G3606 and G3608 Engines Flywheel and Ring Gear - Remove and Install
3512 and 3516 EUI Engines and 784B, 785B, 789B and 793B Off-Highway Truck/Tractors Engine Oil Scavenge Pump
G3408 and G3412 Engines Water Temperature Regulator
3054 and 3056 Industrial and Generator Set Engines Engine Design
G3606 and G3608 Engines Vibration Damper - Assemble
3500 and 3500B High Displacement Engines for Caterpillar Built Machines Engine Oil Level Gauge (Dipstick) - Remove and Install
3406C (PEEC III) Truck Engines Engine Design
G3606 and G3608 Engines Vibration Damper - Disassemble
SR4 HV and SR4B HV Generators General Maintenance Information
G3408 and G3412 Engines Electric Starting Motor
3054 and 3056 Industrial and Generator Set Engines Lubrication System
G3408C, G3412C, G3508, G3512 and G3516 Gas Engine Driven Chillers General Information
3406E and 3456 Generator Set Engines Flywheel - Install
G3408 and G3412 Engines Governor and Magneto Drive
G3408C, G3412C, G3508, G3512 and G3516 Gas Engine Driven Chillers Joint Assembly for Water Line
3408E and 3412E Engines for Caterpillar Built Machines Vibration Damper and Pulley - Remove and Install
Caterpillar PRELUB® Diagnostics{1469} Caterpillar PRELUB® Diagnostics{1469}
3412E, C30 and C32 Marine Engines Auxiliary Water Pump - Remove
G3408C, G3412C, G3508, G3512 and G3516 Gas Engine Driven Chillers High Speed Coupling for Gearbox
3412E, C30 and C32 Marine Engines Auxiliary Water Pump - Install
3412E, C30 and C32 Marine Engines Auxiliary Water Pump - Disassemble
3412E and C30 Marine Engines Serial Number Plate
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.