Cub Cadet Challenger Series Service Manual page 46

"B" Face Width
EX
"C" Seat Width
EX
"D" Margin Thickness
EX
Stem Outside
Diameter
EX
Guide Inside Diameter
EX 6.000-6.012 mm
Stem to Guide
Clearance
EX
Stem Run out Limit
Valve Seat Width
EX
750 UV Engine Specifications
IN 2.25 mm
2.26 mm
IN 0.9-1.1mm
0.9-1.1 mm
IN 0.85-1.15 mm
0.85-1.15 mm
5.975-5.990 mm
IN
5.960-5.975 mm
IN 6.000-6.012 mm
IN
0.010-0.037 mm
0.025-0.052 mm
IN
0.9-1.1 mm
0.9-1.1 mm
(0.0885 in)
(0.0889 in)
(0.0354-0.0433 in)
(0.0354-0.0433 in)
(0.0335-0.0453 in)
(0.0335-0.0453 in)
(0.2352-0.2358 in)
(0.2346-0.2352 in)
(0.2362-0.2367 in)
(0.2362-0.2367 in)
(0.0004-0.0015 in)
(0.0010-0.0020 in)
(0.0354-0.0433 in)
(0.0354-0.0433 in)
2-5
1.6 mm (0.0630 in)
1.6 mm (0.0630 in)
5.945mm
(0.2341 in)
5.930mm
(0.2335 in)
6.050 MM
(0.2559 in)
0.08mm (0.0031in)
0.10mm (0.0039in)
0.01mm (0.0004in)