Toro Workman 3000 Series Service Manual page 121

Camshaft Inspection
1. Check camshaft journal surfaces for damage or sei-
zure. If journal is seized, check cylinder head for pos­
sible damage. Also check for clogged oil holes in
cylinder head.
2. Check camshaft surface for irregular wear or dam­
age. Measure cam height (diameter of cam length). If
cam height is at the limit, replace the camshaft.
Cam Standard Value
mm (in.)
Intake No.1 35.09 (1.3815)
No. 2 35.07 (1.3807)
No. 3 35.06 (1.3803)
Exhaust No.1 35.15 (1.3839)
No. 2 35.13 (1.3831)
No. 3 35.19 (1.3854)
Camshaft Installation
1. Insert camshaft from rear of cylinder head after apply ­
ing a coat of engine oil to journals of camshaft. Install
camshaft thrust plate as shown. Tighten bolt to specified
torque.
2. Measure end play of camshaft. If it exceeds the limit,
replace camshaft thrust plate, camshaft, or both. Mea­
sure camshaft end play by inserting a feeler gauge be­
tween rear of camshaft thrust plate and No. 1 journal.
Standard value 0.06 – 0.14 mm (.0236 – .0551 in.)
Limit mm 0.3 mm (.118 in.)
Workman 3000/4000 Series
Limit
mm (in.)
34.59 (1.3618)
34.57 (1.3610)
34.56 (1.3606)
34.65 (1.3642)
34.63 (1.3634)
34.69 (1.3657)
Page 3 – 83
Journal
Figure 159
Figure 160
Camshaft thrust plate
Camshaft
U8EN061
Figure 161
Figure 162
Liquid Cooled Gas Engine