Toro Groundsmaster 455-D Service Manual page 23

Camshaft
Camshafts with 0.5 mm oversize bearings* are iden­
tified by a yellow paint ring (d) between the cams of
No. 1 cylinder.
* NOTE: These camshafts are installed only on ex­
change engines, and can be obtained on special order.
Valves
Intake
Min. Length l 112.2
+ 0
øa 8.005
– 0.015
øb ± 0.1
38.5
a 90°
Intake: Faces x and y can machined a maximum of 0.2 mm
Exhaust: No machining is permissible.
Valve Recess
Intake
c 0.5 to 1.05
Groundsmaster 455-D
Units: mm
Exhaust
7.985
33
90°
Units: mm
Exhaust
0.9 to 1.45
Page 3 - 5 Rev. B
Figure 4
Figure 5
Figure 6
Engine