Removal Procedure
- Remove the camshaft cover. Refer to Camshaft Cover Replacement .
- CAUTION:
Refer to Fastener Caution .
NOTE:Ensure the EN-50656 holding tool is installed and securely tightened to prevent the camshaft chain from dropping into the front engine cover during camshaft actuator replacement.
Install EN-50656 timing chain holding tool (1) and tighten to 8 N.m (71 lb in).
- NOTE:
- Ensure to mark actuator sprocket and chain before removal of the actuator bolt.
- Install an open-end wrench to the camshaft flats located on the exhaust camshaft.
Remove and DISCARD the camshaft actuator bolt (1).
- NOTE:
- Locate and use pry points to aid in removing the cap.
- When using the pry points to remove the front bearing cap, use a protective material between the camshaft lobes, the cylinder head flange, and pry tool.
- Use 2 pry tools simultaneously to pry the upper front bearing cap away from the lower bearing cap evenly.
Remove the upper timing chain guide bolts (1, 2).
- Remove the upper timing chain guide (3).
- Remove the camshaft front bearing cap bolts (4).
- Remove the camshaft front bearing cap (5).
Remove camshaft bearing cap bolts (1).
- Remove the camshaft bearing caps (2).
Pull exhaust camshaft actuator assembly forward away from camshaft assembly (1), then lift rear of exhaust camshaft assembly to a tilt and pull free from exhaust camshaft actuator assembly (2).
- Replace the camshaft if necessary.
Ensure the engine is properly timed to Top Dead Center (TDC), prior to performing repairs.
If replacing the camshaft, ensure to transfer any marking from the old camshaft to the new one.