Crankshaft Gear/Sprocket: Service and Repair

Fig. 26 Crankshaft Sprocket Position:

REMOVAL
1. Remove camshaft timing chains and timing chain tensioners.
2. Remove crankshaft sprockets from crankshaft.

NOTE: Cam Positioning Tool Adapters T92P-6256-A and Cam Positioning Tool T91P-6256-A must be installed on camshafts to prevent camshafts from rotating.

3. Remove camshaft sprocket retaining bolts, washers, camshaft sprockets and camshaft sprocket spacers.

CAUTION: Do not rotate crankshaft and/or camshafts or possible damage to engine may occur.

4. Inspect crankshaft sprockets and camshaft sprockets for wear or damage and replace as required.

INSTALLATION

NOTE: Cam Positioning Adapters T92P-6256-A and Cam Positioning Tool T91P-6256-A must be installed on camshafts to prevent camshafts from rotating.

1. Position camshaft sprocket spacers and camshaft sprockets on camshafts.
2. Install washers and camshaft sprocket retaining bolts. Do not tighten at this time.

NOTE: Crankshaft sprockets are identical. They may only be installed one way.

3. Install crankshaft sprockets onto crankshaft. Refer to the illustration for proper crankshaft sprocket installation.
4. Install camshaft timing chains and timing chain tensioners.