Auxiliary Shaft: Service and Repair

Auxiliary Shaft, Renew

- Remove the timing cover.

- Remove the pulley woodruff key and remove the oil seal spacer from the crankshaft.




- Remove the flanged bolts (3 Fig. 1) securing the tensioner pedestal.

- Remove the pedestal / tensioner assembly and chain damper (1 Fig. 1).

- Remove the tensioner pivot pin (2 Fig. 1) and remove the tensioner from the pedestal. Clean the pivot pin.

- Remove the flanged bolts (5 Fig. 1) securing the upper static damper. Remove the damper (4 Fig. 1) and upper timing chain (6 Fig. 1).

- Remove the bolts (11 Fig. 1) securing the chain tensioner and remove the assembly (17 Fig. 1).

- Remove the power assisted steering pump assembly.

- Remove the pump drive coupling.




- Remove the flanged bolt (1 Fig. 2) and the drive-plate (2 Fig. 2).

- Using Service Tool JD 118, remove the auxiliary shaft rear oil seal (3 Fig. 2) from its housing.

- Using right-angled snap-ring pliers remove the snap-ring (5 Fig. 2) securing the drive shaft (4 Fig. 2).

- Lift the timing chain (8 Fig. 1) from the sprocket (7 Fig. 1), remove the shaft / sprocket assembly and retrieve the thrust washer.

- Clean all component parts and check for wear or damage. Renew worn or damaged parts as necessary. Clean the auxiliary bearing housing.

- Check for wear and if necessary change the auxiliary shaft bushes.

- Refit the housing with new gasket. Fit and tighten the securing bolts.

- Lubricate the shaft and refit the to the housing, engaging the chain with the gear as it is fitted. Lubricate and fit the thrust washer and secure with the snap-ring.

- Renew the auxiliary shaft rear oil seal.

- Refit the power assisted steering pump assembly.

- Refit the lower chain tensioner.

- Refit the upper chain tensioner.




- Renew the oil seal (1 Fig. 3) and refit the timing cover.