Camshaft: Service and Repair

REMOVAL AND INSTALLATION

REMOVAL SERVICE POINTS
[[A]] CAMSHAFT SPROCKET REMOVAL

CAUTION: Always turn the crankshaft in the forward direction (clockwise).





1. Turn the crankshaft in the forward direction (clockwise) to align the timing mark so that No. 1 cylinder is at TDC on the compression stroke.





2. Secure the camshaft sprocket and the timing belt with tie wraps to prevent slippage between the camshaft sprocket and the timing belt.





3. Use the special tools MB990767 and MD998719 to stop the camshaft sprocket from turning.

CAUTION: Do not turn the crankshaft after the camshaft sprocket is removed.

4. Remove the camshaft sprocket.

[[B]] ROCKER ARM AND SHAFT ASSEMBLY REMOVAL

CAUTION: Never disassemble the rocker arm and shaft assembly. Loosen the rocker arm and shaft assembly mounting bolt, and then remove the rocker arm and shaft assembly with the bolt still attached.

INSTALLATION SERVICE POINTS
]]A[[ CAMSHAFT OIL SEAL INSTALLATION
1. Apply engine oil to the camshaft oil seal lip.








2. Use special tool MD998713 to install the camshaft oil seal.

]]B[[ CAMSHAFT SPROCKET INSTALLATION





Use special tools MD998719 and MB990767 in the same way as during removal to install the camshaft sprocket.