Arctic Cat M 8000, Руководство по обслуживанию

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FS270
4. Place the cylinder head on a Surface Plate covered
with #400 grit wet-or-dry sandpaper. Using light
pressure, move each cylinder head in a figure eight
motion. Inspect the sealing surface for any indication
of high spots. A high spot can be noted by a bright
metallic finish. Correct any high spots before assem-
bly by continuing to move the cylinder head in a fig-
ure eight motion until a uniform bright metallic
finish is attained.
CM018
CYLINDERS
1. Using a non-metallic carbon removal tool, remove
carbon buildup from the exhaust ports.
2. Wash the cylinders in parts-cleaning solvent.
3. Inspect the cylinders for pitting, scoring, scuffing,
and corrosion. If marks are found, repair the surface
with a Ball Hone and honing oil.
 NOTE: To produce the proper 45° crosshatch pat-
tern, maintain a low drill RPM. If honing oil is not
available, use a lightweight, petroleum-based oil.
Thoroughly clean the cylinders after honing using
detergent soap and hot water and dry with com-
pressed air; then immediately apply oil to the cylinder
bores. If a bore is severely damaged or gouged, the
cylinder must be replaced.
4. Place the head surface of each cylinder on the sur-
face plate covered with #400 grit wet-or-dry sandpa-
per. Using light pressure, move each cylinder in a
figure eight motion. Inspect the surface for any indi-
cation of high spots. A high spot can be noted by a
bright metallic finish. Correct any high spots before
assembly by continuing to move the cylinder in a fig-
ure eight motion until a uniform bright metallic fin-
ish is attained.
PISTON ASSEMBLY
1. Using a non-metallic carbon removal tool, remove
the carbon buildup from the dome of each piston.
2. Snap an old piston ring into two pieces; then grind
the end of the old ring to a 45° angle and to a sharp
edge. Using the sharpened ring as a tool, clean car-
bon from the ring-grooves. Be sure to position the
ring with its tapered side up.
3. Inspect each piston for cracks in the piston pin and
skirt areas.
4. Inspect each piston for seizure marks or scuffing.
Repair with #400 grit wet-or-dry sandpaper and
water or honing oil.
AN135

NOTE: If scuffing or seizure marks are too deep to
correct with the sandpaper, it will be necessary to
replace the piston.
5. Inspect the perimeter of each piston for signs of
excessive “blowby.” Excessive “blowby” indicates
worn piston rings or an out-of-round cylinder.

NOTE: If synthetic oil is being used, a certain
amount of “blowby” may be visible under normal use.
CRANKCASE
 NOTE: The coolant temperature sensor must be
removed for this procedure.
1. Wash the crankcase halves in parts-cleaning solvent.
CAUTION
Water or parts-cleaning solvent must be used in con-
junction with the wet-or-dry sandpaper or damage to
the sealing surface may result.
CAUTION
Water or parts-cleaning solvent must be used in con-
junction with the wet-or-dry sandpaper or damage to
the sealing surface may result.
CAUTION
Improper cleaning of the ring-grooves by the use of the
wrong type of ring-groove cleaner will result in severe
damage to the piston.