Bold reference numbers in this section identify parts shown in this exploded view diagram. These parts do not appear in the figures near the text.

Loosen screw (22) securing the horizontal cylinder tensioner, collect washer (23) and move tensioner (21) to its rest position.

To remove belt rollers from cylinder head, install tool part no. 88713.2355 to the belt roller to lock rotation. Fit the bush of tool part no. 88700.5644 to a torque wrench and slacken the belt roller ring nut (13).

Remove the locating screws (24) and the retaining screws (22) of the timing belt tensioners (21) and washer (23).

Use the spanner of tool part no. 88700.5644 to lock rotation of the drive belt roller installed to the casing. Use the bush supplied with the tool to loosen the locking ring nut (6).

Remove the spacer (5) and circlip (25).

Use tool part no. 88713.2355 to prevent belt roller rotation.

Fit the bush of tool part no. 88700.5644 to a torque wrench and tighten ring nuts (13) to the specified torque (Sect. C 3, Engine torque settings).

Working from the belt roller side, fit circlip (25) on the timing layshaft. For correct circlip positioning, insert a protection cap part no. 88700.5749 on the end of the timing shaft.

1100S engine is fitted with timing rollers counting 20 teeth whereas all the other 2V engines mount timing rollers counting 18 teeth.

Fit the first key (26), the inner belt roller (29) -together with belt (28)- with the projecting hub pointing outwards and the guide washer (10) on the timing layshaft.

Fit the other key (27), the outer belt roller (8) -together with belt (9)- with the hub facing inwards, the outer spacer (7) and the locking ring nut (6).

To prevent accidental loosening which would seriously damage the engine, use new self-locking ring nuts to secure all timing belt rollers.

Use the spanner of service tool part no. 88700.5644 to lock belt roller rotation. Fit the bush supplied with the tool to a torque wrench and tighten the self-locking ring nut to the specified torque value (Sect. C 3, Engine torque settings).

If removed, smear a film of recommended threadlocker onto fixed tensioner (11) and tighten to the specified torque (Sect. C 3, Engine torque settings).

Set tensioners (21) onto vertical and horizontal cylinders. Screw in screw (22) with washer (23) and screw (24), but do not tighten yet so that tensioners can rotate.

Rotate the crankshaft until bringing the piston of the horizontal cylinder at TDC during the combustion stroke. This is indicated by the mark (A) on the timing layshaft belt roller (8) aligning with the mark (B) on the clutch cover.

Fit tool part no. 88713.2011 into the generator cover to prevent crankshaft rotation and lock it in place with the relevant pin.

Tighten the tool part no. 88713.2282 into the side cap (E) to lock both camshafts (H).

Check the tensioning and adjust, if necessary, as described in “Measuring the timing belt tension values” (Sect. D 5).

When the correct belt tension value is obtained, ensure that screws (22), (24) and (12) are tightened to the specified torque (Sect. C 3, Engine torque settings).

Every time a timing part is replaced, it is good practice to check the timing (Sect. N 4.1, Head unit: checks and adjustments).

Remove tools part no. 88713.2282 from the side caps (E); fit the screws (F) with washer (G) and tighten to the specified torque (Sect. C 3, Engine torque settings).

Also check for proper timing when checking belt tensioning (Sect. N 4.1, Head unit: checks and adjustments).

Remove the tool part no. 88713.2011 you used to lock the crankshaft. Unscrew the tool bolt and then the screw.

Tighten the screws to the specified torque (Sect. C 3, Engine torque settings).

Fit the screws (3) into the cover and tighten to the specified torque (Sect. C 3, Engine torque settings).

Tighten the screws (3) and screws (4) to the specified torque (Sect. C 3, Engine torque settings).