Removal and installation of guide wheel

Nm

Cylinder head cover bolts and capped nuts

Ball locating ring in chain tensioner

25

Impact extractor for bearing pin (basic unit)

116 589 20 33 00

Chain tensioner holder

110 589 02 31 00

1 Mark relation to timing chain and left camshaft sprocket with paint.

2   Remove chain tensioner or spring (05—310).

3   Remove sliding rail (2) in camshaft housing. This requires knocking out bearing pin with impact extrac­tor (05-340).

1     Exhaust camshaft sprocket 2-2b Sliding rail

3    Intake camshaft sprocket

4    Guide wheel

5    Locking screw

6    Intermediate wheel

7    Timing chain

8    Camshaft sprocket

9    Tensioning rail bearing pin

10    Tensioning rail

11     Hydraulic chain tensioner

05.2-440/1 F3

4 Hold guide wheel with a 5 mm dia. wire hook and knock out bearing pin with an impact extractor (10 mm bolt).

5   Guide in guide wheel with a 5 mm dia. wire hook, position correctly and knock in bearing pin with an impact extractor.

6   Install sliding rail in camshaft housing, noting marks on timing chain and left camshaft sprocket.

7   Set chain tensioner at assembly position and install, or install spring (05-310).

05.2-440/2