3-2
Engine/Transmission
This section has been organized into sub-sections
which show a progression for the complete servicing
of the Arctic Cat UTV engine/transmission.
To service the center crankcase halves, the
engine/transmission must be removed from the frame.
To service top-side, left-side, and right-side compo-
nents, the engine/transmission does not have to be
removed from the frame.
NOTE: Arctic Cat recommends the use of new
gaskets, lock nuts, and seals and lubricating all
internal components when servicing the engine/
transmission.
NOTE: Some photographs and illustrations used
in this section are used for clarity purposes only
and are not designed to depict actual conditions.
NOTE: Critical torque specifications are located
in Section 1.
SPECIAL TOOLS
A number of special tools must be available to the
technician when performing service procedures in this
section.
NOTE: Special tools are available from the Arctic
Cat Service Parts Department.
Specifications*
Description
p/n
Connecting Rod Holder
0444-006
Crankcase Separator/Crankshaft Remover
0444-009
Magneto Rotor Remover Set
0444-206
Piston Pin Puller
0644-328
Side Case Puller
0644-365
Spanner Wrench
0444-205
Spanner Wrench
0544-005
Surface Plate
0644-016
V Blocks
0644-022
VALVES AND GUIDES
Valve Face Diameter
(intake)
(exhaust)
31.6 mm (1.24 in.)
27.9 mm (1.10 in.)
Valve/Tappet Clearance
(intake)
(cold engine)
(exhaust)
0.1016 mm (0.004 in.)
0.1524 mm (0.006 in.)
Valve Guide/Stem
(intake/exhaust)
Clearance
0.013 mm (0.0005 in.)
Valve Guide/Valve Stem
(max)
Deflection (wobble method)
0.35 mm (0.014 in.)
Valve Guide Inside Diameter
5.000-5.012 mm
(0.1969-0.1973 in.)
Valve Stem Outside
(intake/exhaust)
Diameter
4.972-4.987 mm
(0.1957-0.1963 in.)
Valve Stem Runout
(max) 0.1 mm (0.0039 in.)
Valve Head Thickness
(min) 2.3 mm (0.0906 in.)
Valve Stem End Length
(min) 3.97 mm (0.156 in.)
Valve Face/Seat Width
(intake)
(exhaust)
2.25 mm (0.0886 in.)
2.60 mm (0.1024 in.)
Valve Seat Angle
(intake/exhaust) 45° 15’-45° 30’
Valve Face Radial Runout
(max) 0.2 mm (0.0079 in.)
Valve Spring Free Length
(min) 38.7 mm (1.524 in.)
Valve Spring Tension
(outer)
@ 31.5 mm (1.24 in.)
19.0 kg (42 lb)
CAMSHAFT AND CYLINDER HEAD
Cam Lobe Height (min) (intake/exhaust) 13.97 mm (0.55 in.)
Camshaft Journal Oil
(max)
Clearance
0.04 mm (0.0016 in.)
Camshaft Journal
(right & center)
Holder Inside Diameter
(left)
21.98-22.04 mm
(0.8654-0.8677 in.)
17.48-17.53 mm
(0.6882-0.6902 in.)
Camshaft Journal
(right & center)
Outside Diameter
(left)
21.96-21.98 mm
(0.8646-0.8654 in.)
17.47-17.48 mm
(0.6878-0.6882 in.)
Camshaft Runout
(max) 0.05 mm (0.002 in.)
Rocker Arm Inside Diameter
12.000-12.018 mm
(0.4724-0.4731 in.)
Rocker Arm Shaft Outside Diameter
11.97-11.98 mm
(0.4713-0.4717 in.)
Cylinder Head/Cover Distortion
(max) 0.05 mm (0.002 in.)
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