Timing Chain Tensioner: Service and Repair

Note: The hydraulic chain tensioner (M44) can also be fitted to the M42.





Unfasten screw plug and remove hydraulic chain tensioner.

Note: The hydraulic chain tensioner can also be removed if the timing-case cover is removed.





Installation:
If a hydraulic chain tensioner is reused, the oil chamber in the tensioner unit must first be drained.
Fasten the hydraulic chain tensioner into vice with protective vice jaws.





Installation:
Slowly and carefully push the hydraulic chain tensioner together, leaving the lock washer (2) still visible.
Repeat this procedure twice.





Installation: Insert the hydraulic chain tensioner; replace the sealing ring of the drain plug
Tighten the drain plug.
Tightening torque, refer to Engine, Specifications.