Page 236 - Manual_Polaris_RZR_ProXP-20-21
P. 236

ENGINE / COOLING SYSTEM


                11. Install the valve tappet i for each valve in the order  CYLINDER HEAD INSTALLATION
                   they were removed.
                                                                     1. If necessary, rotate the engine so the cylinder is
                                     NOTICE                             facing up.
                           Oil the tappet prior to installing.       2. If installed, remove the Cylinder Holding & Camshaft
                  If any valve train components were replaced, refer to  Timing Plate q from the cylinder.
                       Valve Clearance Adjustment page 2.31.




                VALVE SEALING TEST

                1. Clean and dry the combustion chamber area q.












                                                                                           NOTICE
                                                                       Once the cylinder head is removed, nothing retains the
                                                                         cylinder to the engine. DO NOT rotate the engine
                                                                       without using the Cylinder Holding & Camshaft Timing
                                                                                      Plate (PU-50563).


                2. Pour a small amount of clean solvent into each intake  3. Prepare cylinder head gasket sealing surfaces by
                   port w and check for leakage around the valves. The  cleaning thoroughly to remove all residue. The head
                   valve seats should hold fluid with no seepage.       gasket must be installed clean and dry, free from oil
                                                                        or grease.
                3. Repeat for exhaust valves by pouring fluid into each
                   exhaust port e.                                                         NOTICE
                                                                            Do not touch the gasket sealing surfaces.


                                                                     4. Guide cam chain w through a new head gasket e
                                                                        and install the gasket on the cylinder, locating it on
                                                                        the alignment pins.






















                                                                     5. Carefully set the cylinder head r in place on
                                                                        alignment pins.



                3.92                                                       9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
                                                                                                © Copyright Polaris Industries Inc.
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