30/ASSEMBLING THE ENGINE 147
300018-10
– Remove screw  and use the special tool to push the timing chain tensioner
toward the timing chain.
Release device for timing chain tensioner (77329051000) ( p. 220)
The timing chain tensioner unlocks.
– Mount and tighten screw .
Guideline
Screw, unlocking of timing chain ten-
sioner
M10x1 10 Nm (7.4 lbf ft)
20.21Checking valve clearance
300044-10
– Remove special tool .
– Crank the engine several times.
– Set the engine to ignition top dead center. ( p. 101)
300155-10
– Check the valve clearance on all valves between the valve and the rocker arm using
the special tool .
Guideline
Valve play, cold 0.07… 0.13 mm (0.0028…
0.0051 in)
Feeler gauge (59029041100) ( p. 214)
» If valve clearance does not meet specifications:
– Adjust the valve clearance. ( p. 147)
20.22Adjusting valve clearance
300156-10
– Remove screws .
Info
Make sure that the crankshaft is at top dead center.
300157-10
– Screw suitable screws  into the rocker arm shafts . Pull out the rocker arm
shafts.
– Take off the rocker arm.
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