Polaris General 2020 Service Manual page 179

2. Compress the valve spring by hand using valve
spring compressor adapter (PV-43513-A). Valve
spring compressor (PV-1253 or PV-4019 (Quick
Release)) can be used if desired to aid in removal.
3. Push down on spring and remove split keepers
4. Slowly release valve spring pressure and remove the
compressor adapter.
5. Remove the valve retainer
y
stem seal and valve spring seat
valve seal.
NOTICE
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. Check the condition of each valve spring. Replace if
wear or cracking is present on the spring.
9850067 R01 - 2020-2021 GENERAL / GENERAL XP Service Manual
© Copyright Polaris Inc.
VALVE INSPECTION
1. Remove all carbon from valves with a soft wire wheel
2. Check valve face for runout, pitting, and burnt spots.
e
.
3. Check the end of the valve stem for flaring, pitting,
r t
, valve spring , valve
u
. Discard the
4. Inspect split keeper groove for wear or flaring in the
i
out,
ENGINE / COOLING SYSTEM
or brush.
To check for bent valve stems, mount valve in a drill
or use "V" blocks and a dial indicator.
wear or damage.
keeper seat area.
NOTICE
The valves can be re-faced or end ground, if necessary.
They must be replaced if extensively worn, burnt, bent
or damaged.
3
3.25