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3.44

ENGINE / COOLING SYSTEM

9923523 - 2012 RANGER RZR 570 Service Manual

Cylinder Head Inspection

Thoroughly clea n cylinde r h ead sur face to r emove a ll

traces of gasket material and carbon.

Cylinder Head Warp Inspection

1. Lay a s traight ed ge ( E) ac ross the s urface of th e

cylinder head at several different points and measure

warp by inserting a feeler gauge between the straight

edge and the cylinder head surface. If warp exceeds

the service limit, replace the cylinder head.

Valve Inspection

1. Remove all carbon from valves with a soft wire wheel

or brush.

2. Check va lve face fo r exce s

sive runout, pit ting, a nd

burnt spots.

3. To chec k for bent v alve st em

s, mo unt va lve in “V ”

blocks and measure with a dial indicator.

4. Check the end of the valve stem fo

r flaring, pitting,

wear or damage.

5. Inspect split keeper groove for wear or flaring in th e

eper seat area.

NOTE: The valves can be re-faced or end ground, if

nec

essary. T hey mu st be re placed if e xtensively

worn, burnt, bent or damaged.

CAUTION

Use care not to damage gasket sealing surface.

All gasket surfaces must be clean, dry and free

of any oil or grease upon assembly. Clean

sealing surfaces with rubbing alcohol or

electrical contact cleaner. Do not touch sealing

surfaces of the new head gasket.

= In. / mm.

Cylinder Head Warp Limit:

.0024" (0.06 mm)

Polaris 2012 RANGER RZR 570 INTL User Manual

Questions and Answers: