Page 201 - Manual_Polaris_RZR_ProXP-20-21

ENGINE / COOLING SYSTEM

CYLINDER HEAD REMOVAL 7. Remove the cylinder head and head gasket y.

NOTICE NOTICE
The cylinder head can be serviced with the engine Once the cylinder head is removed, nothing retains the
installed in the chassis. cylinder to the engine. DO NOT rotate the engine
without using the Cylinder Holding & Camshaft Timing
Plate (PU-50563). Refer to Cylinder / Piston Removal
1. Disconnect coolant hose q from thermostat housing
if connected. page 3.72.

3
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.

Lay a straight edge across the surface of the cylinder
2. Remove the two fasteners w retaining the thermostat head r at several different points and measure warp by
housing to the cylinder head. inserting a feeler gauge between the straight edge and
3. Remove the two outer M6 bolts e that retain the the cylinder head surface. If warp exceeds the service
cylinder head r to the cylinder. limit, replace the cylinder head.

4. Loosen the six cylinder head bolts t evenly 1/8 turn MEASUREMENT
at a time until all are loose. Cylinder Head Warp Limit:
5. Remove and discard the cylinder head bolts. .002″ (0.05 mm)
6. Tap cylinder head lightly with a soft faced hammer
until loose.
CAUTION
Tap only in reinforced areas or on thick parts of the
cylinder head casting.

9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual 3.57
© Copyright Polaris Industries Inc.