Valve Guide Seal: Service and Repair

CAMSHAFT OIL SEAL

REMOVAL AND INSTALLATION





Required Special Tools:
* MB990767: End Yoke Holder
* MB991559: Camshaft Oil Seal Adapter Installer
* MD998713: Camshaft Oil Seal Installer
* MD998715: Crankshaft Pulley Holder Pin

REMOVAL SERVICE POINTS

[[A]] CAMSHAFT SPROCKET REMOVAL





Use special tools MD998715 and MB990767 to remove the camshaft sprocket.

[[B]] CAMSHAFT OIL SEAL REMOVAL
1. Make a notch in the oil seal lip section with a knife, etc.

CAUTION: Be careful not to damage the camshaft and the cylinder head.





2. Cover the end of a flat-tipped screwdriver with a shop towel and insert into the notched section of the oil seal, and pry out the oil seal to remove it.

INSTALLATION SERVICE POINTS

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








2. Use special tools MD998713 and MB991559 to press-fit the camshaft oil seal.

]]B[[ CAMSHAFT SPROCKET INSTALLATION





1. Use special tools MD998715 and MB990767 in the same way as during removal to install the camshaft sprocket.
2. Tighten the camshaft sprocket mounting bolt to the specified torque.
Tightening torque: 88 ± 10 Nm (65 ± 7 ft-lb)