Camshaft Gear/Sprocket: Service and Repair

Fig. 8 Aligning Timing Marks:

REMOVAL
1. Remove timing cover. Refer to Timing Cover / Service and Repair.
2. Position No. 1 piston at TDC with marks on camshaft and crankshaft sprockets aligned, Fig. 8.
3. Remove camshaft sprocket and chain. If sprocket does not come off easily, a light blow on lower edge of sprocket should dislodge it.
4. Remove crankshaft sprocket.
4. Remove timing chain damper assembly bolts and damper.

Fig. 9 Replacing Timing Chain & Sprockets:

INSTALLATION
1. Install timing chain damper assembly and bolts. Torque damper bolts to 18-24 Nm ( 13-18 ft. lbs. ).
2. Install crankshaft sprocket.
3. Apply Molykote or equivalent to sprocket thrust surface.
4. Hold sprocket with chain hanging down and align marks on camshaft and crankshaft sprockets, Fig. 9.
5. Align dowel in camshaft with dowel hole in camshaft sprocket.
6. Draw camshaft sprocket onto camshaft using attaching bolts, then torque bolt to 20-27 Nm ( 15-20 ft. lbs. ).
7. Lubricate timing chain with engine oil.
8. Install timing cover. Refer to Timing Cover / Service and Repair.