18 ENGINE
192
18.5.26 Checking the valve clearance
- Remove screw
O.
- Crank over the engine repeatedly.
- Position the engine at ignition top dead center.
✓ Markings
O
on the cylinder head are flush above the flat areas
0
of the
camshafts.
- Check the valve clearance at all valves between the camshaft and cam levers.
Guideline
Valve clearance
Intake at: 20 °c (68 °F)
I
0.10 ... 0.15 mm (0.0039 ... 0.0059 in)
Exhaust at: 20 °C (68 °F)
I
0.13 ... 0.18 mm (0.0051 ... 0.0071 in)
I
Feeler gauge (59029041100) (
a
p. 291)
If the valve clearance does not meet specifications:
- Adjust the valve clearance. (
a
p. 192)
- Mount and tighten screw
O
with the washer.
18.5.27 Adjusting the valve clearance
Guideline
I
Screw plug, crankshaft location
Main work
- Remove the timing chain tensioner. (
a
p. 140)
- Remove the camshaft. (
a
p. 141)
- Raise cam levers
O.
110 Nm (7.4 lbf ft)
- Correct the shims according to the findings from checking the valve clearance.
- Install the camshafts. (
a
p. 189)
- Install the timing chain tensioner. (
a
p. 191)
Finishing work
- Check the valve clearance. (
a
p. 192)