Reassembly Procedures WM 130/170/270 Repair
wc_tx000379gb.fm 64
9.15 Valve Clearance Adjustment
See Graphic: wc_gr001809
9.15.1 Temporarily fit the flywheel (a).
9.15.2 Rotate the crankshaft up to the top dead center position. Measure the
clearance by inserting the thickness gauge (b) between the valve and
the adjusting screw (c). Check clearance of exhaust valve rocker arm
(d); also check clearance of intake valve rocker arm (e).
9.15.3 To adjust clearance, loosen the nut (f) on the adjusting screw and turn
the screw until the clearance is correct. When the clearance is correct,
tighten the screw. Adjust both intake and exhaust valve clearance to
be 0.135 ± 0.015 mm (0.0053 ± 0.0006 in.). Torque the nut to 5.0–7.0
Nm (3.6–5.1 ft.lbs.).
Note: After adjusting the valve clearances, rotate the crankshaft at
least one full revolution and check the clearances again. Make any
necessary adjustments.
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