Camshaft timing belt (page 3 of 6)

9. Loosen Allen bolt securing timing belt tensioner pulley.
10. Remove timing belt tensioner access plug from back cover.
11. Screw timing belt tensioner retractor tool 18G 1719 into timing belt tensioner plunger.
12. Tighten nut on tool 18G 1719 until belt tension is released.
13. Tighten tensioner pulley Allen bolt.
14. If timing belt is to be refitted, mark direction of rotation on belt. Remove timing belt.

CAUTION: Do not rotate crankshaft or camshaft with timing belt removed and cylinder head fitted. Ease timing belt off gears using fingers only. Metal levers may damage the belt and gears. Timing belts must be stored and handled with care. Always store a timing belt on its edge with a bend radius greater than 50 mm. Do not use a timing belt that has been twisted or bent double as this can damage the reinforcing fibres. Do not use an oil or coolant contaminated timing belt. The cause of contamination MUST be rectified. Although the belt has a service life of 84,000 miles, (135,000 km) an existing belt should only be refitted if it has completed less than 42,000 miles (65,000 km).

Refit

1. Clean timing belt gears and pulley.

CAUTION: If the sintered gears have been subjected to prolonged oil contamination, they must be soaked in a solvent bath and then thoroughly washed in clean solvent before refitment. Because of the porous construction of sintered material, oil impregnated in the gear will emerge and contaminate the new belt. Cause of oil contamination must be rectified.

2. Ensure timing marks on camshaft gear and back cover are aligned.
3. Using fingers only, fit timing belt to gears. Ensure the belt run between the crankshaft timing gear and the camshaft gear is kept taut during the fitting procedure.

CAUTION: If original belt is to be refitted, ensure direction of rotation mark is facing the correct way.

4. Clean mounting plate mating faces.
5. Fit plate to engine mounting studs.
6. Fit nuts and tighten to 35 Nm.