To Next Page

To Previous Page

3.74

ENGINE / COOLING SYSTEM

9923523 - 2012 RANGER RZR 570 Service Manual

3. Inspect the oil pump chain for worn or missing rollers

or damage. Chain should be replaced as a set with

sprockets if sprocket teeth are worn.

NOTE: The larger oil pu mp sprocket moun ts to th e

balan

ce s haft e xtension, t he s maller oil pump

sprocket mounts to the oil pump shaft.

4. Remove the upper oil pump sprocket spacer.

5. Remove the (3) bolts securing the oil pump cover to

he crankcase.

6. Grasp the oil pump shaft and pull it outward to remove

e shaft, oil pump cover and inner oil pump geroter.

This will prevent the oil pump drive pin from falling out

and into the crankcase.

IMPORTANT: The gerotor set has (2) orientation dots

hat must be installed inward upon assembly 

(Figure 1 on the next page).

7. Remove the center geroter, pin and shaft from the oil

pump cover.

NOTE: There is a spacer in be tween t he inne r oil

mp geroter and the oil pump cover.

8. Remove the oil pump geroter that is in the engine case

(

if needed).

9. Clean the geroters to remove oil.

10. Inspect su rfaces of pum

p ca vity in cr ankcase and

surface of pump cover for scoring or wear.

Larger Sprocket

Smaller Sprocket

(Upper)

(Lower)

Spacer

Polaris 2012 RANGER RZR 570 INTL User Manual

Questions and Answers: