Chevrolet Trax: Crankshaft and bearing removal

Fig. 314: Crankshaft Position Sensor, Bolt And Seal Ring

1. Remove the crankshaft position sensor bolt (3).
2. Remove the crankshaft position sensor (1) and the crankshaft position sensor seal ring (2).

Fig. 315: Outer Crankshaft Bearing Cap Tie Plate Bolts

3. Remove and DISCARD the 12 outer crankshaft bearing cap tie plate bolts (1).

Fig. 316: Inner Crankshaft Bearing Cap Tie Plate Bolts Loosening Sequence

4. Loosen the 10 inner crankshaft bearing cap tie plate bolts in a sequence as shown.

Fig. 317: Crankshaft Bearing Cap Tie Plate, Bolts, Lower Crankshaft Bearings, Lower  Crankshaft Thrust Bearing And Crankshaft Rear Oil Seal

5. Remove and DISCARD the 10 crankshaft bearing cap tie plate bolts (1)

Remove the crankshaft bearing cap tie plate (2).

6. Remove the 4 lower crankshaft bearings (3) an the lower crankshaft thrust bearing (4).
7. Remove the crankshaft rear oil seal (5).

Fig. 318: Crankshaft, Upper Crankshaft Bearings And Upper Crankshaft Thrust Bearing

8. Remove the crankshaft (1), the 4 upper crankshaft bearings (2) and the upper crankshaft thrust bearing (3).

Fig. 319: Crankshaft Position Sensor Reluctor Ring And Bolts

9. Remove the 3 bolts (2) and the crankshaft position sensor reluctor ring (1).

CYLINDER HEAD DISASSEMBLE

Special Tools

• EN-840 Pliers/Remover
• EN-8062 Valve Spring Compressor
• EN-8062-5 Adapter
• EN-50717-2 Compressor Assembly of EN-50717 Kit

For equivalent regional tools, refer to Special Tools.

Fig. 320: Valve Spring Compressor And Adapter Assembly

1. Install the EN-50717-2 assembly (1) to the EN-8062 compressor (4).
2. Install the EN-8062-5 adapter (3) to the EN-8062 compressor.
3. Install the compressor assembly to the cylinder head, so that the adapter (5) of the EN-50717-2 assembly (1) contacts the valve spring retainer properly and the EN-8062-5 adapter (3) contacts the valve disc (2).

   Prefix the EN-8062 compressor (4).

Fig. 321: Valve Spring Retainer And Valve Spring

WARNING: Valve springs can be tightly compressed. Use care when removing the retainers and plugs. Personal injury could result.

4. Apply pressure to the EN-50717-2 assembly to push down the vale spring retainer (1) and compress the valve spring (3) until the valve keys (2) are free from tension. Carefully remove the valve keys.

Fig. 322: Spring Compressor

5. Slowly and carefully loosen the EN-50717-2 assembly until the valve spring is entirely expanded.
6. Remove the compressor assembly from the cylinder head.
7. Remove the valve spring retainer (1) and the valve spring (3).
8. Remove and DISCARD the valve stem oil seal (4), using the EN-840 pliers (2).
9.  Remove the valve (5).

NOTE: Ensure that the valve train components are kept together and identified in order for proper installation in their original position.

10. Repeat the procedure with the remaining valves.
11. In case of re-using the cylinder head, refer to Cylinder Head Cleaning and Inspection.

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