Toro Workman 3000 Series Service Manual page 56

6. If valve clearance is not at standard value, loosen
rocker arm locknut and use a feeler gauge to adjust
clearance while turning adjusting screw.
7. Hold screwdriver so adjusting screw will not turn and
tighten locknut to specified torque.
Adjusting screw torque
8. Turn crankshaft a further 240� in clockwise direction
and align round mark on camshaft sprocket with timing
mark on timing belt rear cover to set No. 3 cylinder on
compression top dead center.
IMPORTANT: Turn crankshaft only in clockwise
direction.
9. Measure valve clearance at locations shown in il­
lustration.
Standard Values
Item When warmed up
Intake valve 0.20 (.008)
Exhaust valve 0.30 (.012)
10. If valve clearance is not at standard value, adjust as
instructed in steps 6 and 7.
Liquid Cooled Gas Engine
8 – 10 Nm (5.8 – 7.2 ft–lb)
mm (in.)
When cold
(Reference)
0.14 (.006)
0.24 (.009)
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Figure 19
Ti ming mark
Figure 20
Figure 21
Workman 3000/4000 Series