Camshaft Installation/Timing - Polaris RANGER XP 1000 2018 Service Manual

ENGINE / COOLING / EXHAUST
CAMSHAFT INSTALLATION / TIMING
If any valve train components were replaced, refer to
Valve Clearance Adjustment, page 3.81 procedure.
1. Rotate the engine until the flywheel Top Dead Center
q
(TDC) mark is aligned or centered in the
Crankshaft Position Sensor (CPS) mounting hole
This places the PTO cylinder at TDC for camshaft
installation.
DO NOT use the "V" mark located on the flywheel
opposite of the "I" mark. Only the "I" mark should be
used as a TDC reference.
2. Reference the intake and exhaust markings made
during disassembly. If installing new camshafts or if
camshafts were not marked, you can reference the
part number stamped on the end of the shafts and
compare to the electronic parts catalog.
3. Lubricate all camshaft lobes and bearing journal
surfaces with Polaris PS-4 engine oil prior to
installation.
4. Carefully install the camshafts into the cylinder head.
The PTO camshaft lobes
shown.
3.76
NOTE
NOTE
t
should face out as
5. Carefully install the rear camshaft carriers onto the
camshafts. Carrier openings should face each other
when installed properly.
6. Install the four bolts that retain each rear camshaft
y
carrier and tighten the bolts evenly until snug.
w
.
7. Install the Cylinder Holding & Camshaft Timing Plate
(PU-50563) into the end of camshafts as shown. Use
a 13/16" open-end wrench to rotate camshafts slightly
if needed.
8. Verify the TDC mark on the flywheel is still properly
aligned (see Step 1).
9. Pull cam chain upward, making sure it is engaged
with the drive sprocket on the crankshaft.
10. While lifting the cam chain up, engage the cam
sprockets into the chain with the "I" and "E" marks
facing out.
11. Install the sprockets onto the camshafts and align the
sprocket marks with the valve cover gasket surface
(see CAMSHAFT TIMING — QUICK REFERENCE).
Intake cam sprocket should have "I" marks aligned with
gasket surface and the exhaust cam sprocket should
have "E" marks aligned with gasket surface.
Install the exhaust cam sprocket first (opposite the cam
chain tensioner) to ensure proper cam timing.
9928487 R01 - 2018 RANGER XP 1000 Service Manual
NOTE
© Copyright Polaris Industries Inc.