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9928485 R01 - 2017-2018 RANGER 500 / 570 Service Manual
© Copyright Polaris Industries Inc.
3.85
3. Place the camshaft into the cylinder head and align
the timing marks as shown below.
4. Wrap the cam chain around the camshaft in its
current position.
5. Verify that the timing marks
q
are in alignment as
shown below.
6. Carefully install the camshaft carrier onto the
camshafts.
7. Install the four bolts that retain the camshaft carrier.
Tighten the bolts evenly until snug. Do not torque at
this time.
8. Verify cam timing is correct and the piston is a TDC.
9. If timing marks are not aligned:
• Remove the cam carrier bolt and cam carrier.
• Correct the camshaft timing as needed.
• Reinstall the cam carrier.
• Re-check cam timing.
10.If needed, install the camshaft carrier and bolts.
11. Torque the camshaft carrier bolts in sequence to
specification.
TORQUE
Camshaft Carrier Bolts:
7 ft-lbs (10 Nm)
12.Install camshaft sprocket bolt and torque to
specification.
TORQUE
Camshaft sprocket Bolt
44 ft-lb (60 Nm)
NOTE
Ensure exhaust decompression mechanism still moves
freely and returns by spring force after sprocket has
been installed.
13.Insure the new sealing washer
q
is in place.
ENGINE / COOLING SYSTEM
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