Page 285 - Manual Oficina Polaris Sportsman 570 2014 a 2016

ENGINE / COOLING SYSTEM

VALVE SEALING TEST 3. Lubricate the camshaft bearing journal surfaces with
Polaris PS-4 engine oil prior to installation.
1. Clean and dry the combustion chamber area q.
4. Carefully install the camshafts into the cylinder head.
2. Pour a small amount of clean solvent into each
intake port w and check for leakage around the The camshaft lobes should face out.
valves. The valve seats should hold fluid with no
seepage.
3. Repeat for exhaust valves by pouring fluid into each
exhaust port e.

3

5. Carefully install the camshaft carrier onto the
camshafts.
6. Install the upper cam chain guide and the eight bolts
that retain the camshaft carrier.

VALVE CLEARANCE CHECK / ADJUSTMENT

NOTE
Always inspect valve clearance prior to camshaft
installation or final engine assembly.

1. Install the cam chain guides and cam chain before
camshaft installation (if removed) as outlined in this
chapter.
2. Reference the camshaft intake q and exhaust w
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.

9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 3.163
© Copyright Polaris Industries Inc.