Camshaft Sprockets

INSTALLATION - CAMSHAFT SPROCKETS





CAUTION: The camshaft sprockets are keyed and not interchangeable from side to side because of the camshaft position sensor pick-up.

1. Install camshaft sprockets onto the camshafts. Install NEW sprocket attaching bolts into place. The 255 mm (10 in.) bolt is installed in the left camshaft and the 213 mm (8 3/8 in.) bolt is installed into the right camshaft. Do not tighten the bolts; tightened at later step. Camshaft sprocket mark should be aligned with the marks on the cover at both sprockets.
2. Install the camshaft thrust plates and seals. Tighten bolts to 28 Nm (250 in. lbs.).




3. Install the timing belt starting first at the crankshaft sprocket, then to remaining components in a counterclockwise direction.
4. Install the belt around the last sprocket. Maintain tension on the belt as it is positioned around the tensioner pulley. Each camshaft sprockets mark should still be aligned with the rear cover marks.

NOTE: For timing belt tensioner reset procedure, Timing Belt & Sprockets - Removal.

5. Hold the tensioner pulley against the belt and install the reset (pinned) timing belt tensioner into the housing. Tighten attaching bolts to 28 Nm (250 in. lbs.).
6. Remove tensioner retaining pin to allow the tensioner to extend to the pulley bracket.
7. Using a dial indicator, position the number 1 piston at TDC.




8. Hold the right camshaft sprocket hex with a 36 mm (1 7/16 in.) wrench and tighten the right camshaft bolt to 102 Nm (75 ft. lbs.) +90° turn




9. Hold the left camshaft sprocket hex with a 36 mm (1 7/16 in.) wrench and tighten the left camshaft bolts to 102 Nm (75 ft. lbs.) +90° turn
10. Remove dial indicator and install spark plug.
11. Install front timing belt cover Timing Cover - Installation.