Inspection And Adjustments; Inspection And Adjustments; Valve Clearance - Toro Workman 3000 Series Service Manual

Inspection and Adjustments

Valve Clearance

IMPORTANT: After adjusting timing belt tension, ad­
just valve clearance.
1. Warm up the engine until coolant is at 80� to 95� C
(176� to 203� F).
2. Remove rocker cover.
3. Remove timing belt cover.
4. Turn crankshaft clockwise to align triangular mark on
camshaft sprocket with timing mark on timing belt rear
cover to set No. 1 cylinder on compression top dead
center.
IMPORTANT: Turn crankshaft only in clockwise
direction.
5. Measure valve clearances at locations shown in
illustration.
Standard Values
Item When warmed up
Intake valve 0.20 (.008)
Exhaust valve 0.30 (.012)
Workman 3000/4000 Series
mm (in.)
When cold
(Reference)
0.14 (.006)
0.24 (.009)
Page 3 – 17
Tiiming belt
cover A
Figure 16
Ti ming mark
Figure 17
Figure 18
Liquid Cooled Gas Engine