Page 146 - Manual Oficina Polaris RZR XP 1000 17-18

ENGINE / COOLING SYSTEM

2. Compress the valve spring by hand using valve VALVE INSPECTION
spring compressor adapter (PV-43513-A). Valve 1. Remove all carbon from valves with a soft wire wheel
spring compressor (PV-1253 or PV-4019 (Quick or brush.
Release)) can be used if desired to aid in removal.
2. Check valve face for runout, pitting, and burnt spots.
To check for bent valve stems, mount valve in a drill
or use “V” blocks and a dial indicator.

3. Push down on spring and remove split keepers e.

3. Check the end of the valve stem for flaring, pitting,
wear or damage.

4. Slowly release valve spring pressure and remove the
compressor adapter.
5. Remove the valve retainer r, valve spring t, valve
stem seal y and valve spring seat u. Discard the
valve seal. 4. Inspect split keeper groove for wear or flaring in the
NOTICE keeper seat area.
Replace valve seals whenever cylinder head is NOTICE
disassembled. Hardened, cracked or worn seals will The valves can be re-faced or end ground, if necessary.
cause excessive oil consumption.
They must be replaced if extensively worn, burnt, bent
or damaged.
6. Lift up the cylinder head and push the valve i out,
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.

3.38 9928492 R06 - 2017-2018 RZR XP 1000 / XP4 1000 Service Manual
© Copyright Polaris Industries Inc.