All models (page 4 of 7)

52. Loosen tensioner pulley Allen bolt until tensioner moves to tension belt then tighten Allen bolt to 55 Nm. Fit access plug into timing belt front cover.
53. Remove timing pin 18G 1523.

54. Restrain camshaft gear using tool 18G 1521 and tighten bolt to 20 Nm + 90° .
55. Check that camshaft gear timing mark is still aligned with mark on back cover.
56. Insert timing pin 18G 1523 into hole in flywheel ensuring pin is fully inserted in hole.

57. Check that 4 bolts securing injection pump timing belt camshaft gear to hub are loosened sufficiently for gear to rotate within slots without tipping.
58. Fit injection pump timing belt using fingers only rotating the gear fully clockwise within the slots and then anti-clockwise until the timing belt locates in the gear teeth. Fitting the belt in the other possible position will not allow for correct belt adjustment.

CAUTION: If original belt is to be refitted, ensure direction of rotation is correct. Ensure that camshaft does not rotate and that timing marks are still aligned.