ENGINE
3.7
If cylinder wear or damage is excessive, it will be
necessary to replace the cylinder. Hone only enough
to deglaze the outer layer of the cylinder bore.
EXAMPLE OF CROSS HATCH PATTERN
HONING TO OVERSIZE
If cylinder wear or damage is excessive, it will be
necessary to oversize the cylinder using a new
oversizepistonand rings. Thismaybeaccomplished
by either boring the cylinder and then finish honing to
the final bore size, or by rough honing followed by
finish honing.
For oversize honing always wet hone using honing oil
and a coarse roughing stone. Measure the piston (see
piston measurement) and rough hone to the size of the
piston. Always leave .002 - .003″ (.05 - .07 mm) fo r
finish honing. Refer to piston-to-cylinder clearance
specificationsonPage3.2beforehoning. Completethe
sizing with fine grit stones to provide the proper
cross-hatch finish and required piston clearance.
A finished cylinder should have a cross-hatch pattern
toensurepistonringseatingandto aidin theretention
of the fuel/oil mixture during initial break in. Hone
cylinder according to hone manufacturer’s
instructions, or these guidelines:
G Use a motor speed of approximately
300-500 RPM, run the hone in and
outof thecylinderrapidlyuntilcutting
tension decreases. Remember to
keep the hone drive shaft centered
(orcylindercenteredonarbor)andto
bring the stone approximately 1/2″
(1.3 cm) beyond the bore at the end
of each stroke.
G Releasethe honeat regular intervals
and inspect the bore to determine if
it has been cleared, and to check
piston fit. NOTE: Do not allow
cylinder to heat up during honing.
The thinner areas of the liner around
the ports will expand causing an
uneven bore.
G After honing has been completed
inspect all port opening areas for
rough or sharpedges. Apply a slight
chamfer to all ports to remove sharp
edges or burrs, paying particular
attention to the corners of the intake
and exhaust ports.
IMPORTANT: Clean the Cylinder After
Honing
It is very important that the cylinder be thoroughly
cleanedafterhoningtoremoveallgrit material. Wash
thecylinderinasolvent,theninhot,soapywater. Use
electrical contact cleaner if necessary to clean these
areas. Rinse thoroughly, dry with compressed air,
and oil the bore immediately with Polaris 4 Cycle
Lubricant to prevent the formation of surface rust.
ENGINE LUBRICATION -
ES32PF10
Oil Type Polaris Premium 2W--50 Synthetic.....
Capacity Approximately 2 U.S. Quarts (1.9 l).....
Filter PN 3084963...............
OIl Filter Wrench PV--43527...
Drain Plug/
Screen Fitting 14 ft. lbs. (19 Nm)......
Oil Pressure
Specification
(ES32PF10) 71-99 PSI @ 3000 RPM,.........
Polaris 2W--50 Synthetic
(Oil temp at 122_F50_C)
OIL PRESSURE TEST
ES32PF10
W ARNING: Oil temperature andpressure cancause
serious injury and damage. Wear the proper safety
gear when performing these procedures.
1. Remove lower blind plug behind oil filter on
crankcase.
2. Insert a 1/8” NPT oil pressure gauge adaptor into
the crankcase and attach gauge.
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