16 ENGINE 155
306140-10
– Remove the special tool.
Engine blocking screw (77329010000) ( p. 219)
– Mount and tighten screw 3 with the washer.
Guideline
Screw plug, crankshaft clamp M8 20 Nm
(14.8 lbf ft)
16.5.22 Adjusting valve clearance
300156-10
– Remove screws 1.
Info
Make sure that the crankshaft is at top dead center.
300157-10
– Screw suitable screws 2 into the rocker arm shafts 3. Pull out the rocker arm
shafts.
– Take off the rocker arm.
300158-10
– Remove shims 4 and set them down according to the installation position.
– Correct the shims as indicated by the results of the valve clearance check.
– Insert suitable shims.
– Position the rocker arms and push in the rocker arm shafts.
Info
Make sure that the tapped hole of the rocker arm shaft is positioned facing
outwards.
The small drill hole and the flat surface must point upwards.
300156-11
– Install and tighten the screws 5 of the rocker arm shafts.
Guideline
Screw, rocker arm shaft M6 12 Nm (8.9 lbf ft)
– Check the valve clearance. ( p. 154)
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