Cub Cadet Challenger 750

550 UV Engine Specifications
2-10
Intake "A"
"B"
Exhaust "A"
"B"'
Camshaft run out limit
32.30~32.20mm
( 1.271~1.268Iin)
40.88~40.78mm
(1.6094~1.6055in)
32.30-32.30mm
( 1.272~1.268in) ,
40.95~40.85mm
(1.6122~1.6083in)
Cam chain
Number of links
Cam chain adjustment method
124
Automatic
Valve spring
Inner spring
Free length
Outside spring
Within spring
Set length (valve closed),
Outside spring
Within spring
Compressed pressure
(installed)
Outside spring
Within spring
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
42.5mm(1.67in)
42.5mm(1.67in)
39.0mm(1.54)
39.0mm(1.54)
36.0mm(1.42in)
36.0mm(1.42in)
33.0mm(1.30in)
33.0mm(1.30in)
240.0~260.0N(24.49~26.53)
240.0~260.0N(24.49~26.53)
110.0~130.0N(11.22~13.27kg)
110.0~130.0N(11.22~13.27kg)