Camshaft: Service and Repair

REMOVAL

CAUTION: Lifters, valve springs, caps, and stem seals can be replaced without removing the cylinder head, using SA9124E. The camshaft can be removed through the cylinder head rear plug hole. Front cover assembly and timing chain/gear removal are required.

1. Remove battery cover and battery.





2. Remove the rocker cover, front cover assembly, timing gears, timing chain, and timing chain guides.





3. Remove rocker arms and lifter assemblies.
4. Drive camshaft plug inward and remove from cylinder head with a magnet.





5. Remove camshaft out of the rear of the cylinder head.

NOTE: The rear camshaft plug hole is oversize to allow for camshaft removal in-vehicle.

INSTALLATION
1. Install camshaft in rear of the cylinder head.
2. Coat a new rear cylinder head plug with Saturn P/N 21485277 (Loctite 242 or equivalent) and install it using a standard bushing driver.
3. Install the timing gears, timing chain, timing chain guides, tensioner, front cover assembly and rocker cover.
4. Install battery and tighten battery hold-down nut and screw.
Torque to 9 Nm (80 inch lbs.).

5. Install the battery cables.
Torque to 17 Nm (151 inch lbs.).