30/ENGINE ASSEMBLY
172
304945-11
–
Mount and tighten screw plug
3
with the seal ring.
Guideline
Plug, timing chain tensioner
M24x1.5
25 Nm
(18.4 lbf ft)
–
Remove screw
4
.
304953-10
–
Press the timing chain tensioner toward the timing chain using special tool
5
.
Release device for timing chain tensioner (77329051000) (
The timing chain tensioner unlocks.
–
Mount and tighten screw
4
.
Guideline
Screw, unlocking of timing chain ten-
sioner
M10x1
10 Nm (7.4 lbf ft)
21.28
Checking the valve clearance
304941-10
–
Remove screw
1
.
–
Crank over the engine repeatedly.
304940-10
–
Position the engine at ignition top dead center.
Markings
A
on the cylinder head are flush above the flat areas
B
of the
camshafts.
304942-10
–
Check the valve clearance at all valves between the camshaft and cam levers.
Guideline
Valve clearance
Intake at: 20 °C (68 °F)
0.10… 0.15 mm (0.0039…
0.0059 in)
Exhaust at: 20 °C (68 °F)
0.13… 0.18 mm (0.0051…
0.0071 in)
Feeler gauge (59029041100) (
» If the valve clearance does not meet specifications:
–
Adjust the valve clearance. (