Timing Chain Tensioner: Service and Repair

REMOVING AND INSTALLING PISTON FOR CHAIN TENSIONER




- Unscrew plug (1).
- Take off damper housing (2).

Installation Note:
- Replace seal (3).
- Tightening torque = 25 +/- 3 Nm (18 +/- 2 ft. lbs.).




- Unscrew connector (4).

CAUTION: Strong spring pressure. Remove spring and rod.

Installation Note:
- Replace seal (5).
- Tightening torque for connector (4) = 40 +/- 3 Nm (29 +/- 2 ft. lbs.).




Tightening torque for cylinder (6) = 50 +/- 3 Nm (36 +/- 2 ft. lbs.).

Installation Note:
- Check length of spring.
- Nominal value: 159 +/- 0.5 mm (6.260 +/- 0.020").
- Conically wound end of spring faces the connector.




NOTE: Rod and cylinder are matched with each other - marked 1 or 2. Only install parts with same marks.

- Install cylinder with groove facing back (as seen looking forward in car) and rod with groove facing up.




- Guide rod opening into tensioning rail. Rod is operated by engine oil pressure.