Cylinder Head Inspection - Polaris RANGER ETX 2015 Owner's Manual

ENGINE / COOLING SYSTEM
2. Compress the valve spring using valve spring
compressor (PV-1253) and adapter (PU-51038).
3. Push down on the spring and remove the split
e
keepers .
4. Slowly release valve spring pressure and remove the
compressor adapter.
3.50
9926806 R03 - 2015 - 2016 RANGER ETX / 570 2-SEAT 2015 - 2016 RANGER 570 CREW Service Manual
5. Remove the valve retainer
t
stem seal and valve spring seat
valve seal.
Replace valve seals whenever cylinder head is
disassembled. Hardened, cracked or worn seals will
cause excessive oil consumption.
6. Lift up the cylinder head and push the valve
keeping it in order for reassembly in the same valve
guide.
7. Repeat the previous steps to remove the remaining
valves.
8. Clean the combustion chamber and head gasket
surface.
9. Measure the free length of each valve spring with a
vernier caliper and compare to specification.
MEASUREMENT
Valve Spring Free Length:
Standard: 1.667" (42.33 mm)

CYLINDER HEAD INSPECTION

Thoroughly clean cylinder head surface to remove all
traces of gasket material and carbon.
CAUTION
Use care not to damage gasket sealing surface. All
gasket surfaces must be clean, dry and free of any oil
or grease upon assembly. Clean sealing surfaces with
rubbing alcohol or electrical contact cleaner. Do not
touch sealing surfaces of the new head gasket.
w r
, valve spring
y
. Discard the
NOTE
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, valve
u
out,