Cylinder Head Assembly - Polaris PREDATOR 2003 Service Manual

ENGINE
3. Check end of valve stem for flaring, pitting, wear
or damage (A).
4. Inspect split keeper groove for wear or flaring of
the keeper seat area (B). NOTE: The valves
cannot be re-faced or end ground. Valves must
be replaced if worn, bent, or damaged.
5. Measure diameter of valve stem with a
micrometer in three places and in two different
directions (six measurements total). Compare to
specifications.
Measure valve stem in
several places.
Valve Stem Diameter:
Intake: .2343-.2348I (5.950-5.965 mm)
Exhaust: .2341-.2346I (5.945-5.960 mm)
3.18

CYLINDER HEAD ASSEMBLY

CAUTION: Wear eye protection during assembly.
A
NOTE: Assemble the valves one at a time to maintain
proper order.
1. Install new valve seals on valve guides.
B
2. Apply engine oil to valve guides and seats.
3. Coat valve stem with assembly lube.
4. Install valve carefully with a rotating motion to
avoid damaging valve seal.
5. Install spring washers. Dip valve springs and
retainer in clean engine oil and install springs with
closely spaced coils toward the cylinder head.
Spring washer
located below