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3.29
ENGINE
3
4.
Inspect the cut area of the seat:
* If the contact area is less than 75% of the circumference of the
seat, rotate the pilot 180
°
and make another light cut.
* If the cutter now contacts the uncut portion of the seat, check
the pilot. Look for burrs, nicks, or runout. If the pilot is bent it
must be replaced.
* If the contact area of the cutter is in the same place, the valve
guide is distorted from improper installation
* If the contact area of the initial cut is greater than 75%,
continue to cut the seat until all pits are removed and a new seat
surface is evident.
NOTE:
Remove only the amount of material
necessary to repair the seat surface.
5.
To check the contact area of the seat on the valve face, apply
a thin coating of Prussian Blue
™
paste to the valve seat. If
using an interference angle (46
°
) apply black permanent
marker to the entire valve face (A).
6.
Insert valve into guide and tap valve lightly into place a few
times.
7.
Remove valve and check where the Prussian Blue
™
indicates seat contact on the valve face. The valve seat
should contact the middle of the valve face or slightly
above, and must be the proper width.
* If the indicated seat contact is at the top edge of the valve face
and contacts the margin area (B) it is too high on the valve face.
Use the 30
°
cutter to lower the valve seat.
* If too low, use the 60
°
cutter to raise the seat. When contact
area is centered on the valve face, measure seat width.
* If the seat is too wide or uneven, use both top and bottom
cutters to narrow the seat.
* If the seat is too narrow, widen using the 45
°
cutter and re-
check contact point on the valve face and seat width after each
cut.
NOTE: When using an interference angle, the seat
contact point on the valve will be very narrow, and is
a normal condition. Look for an even and
continuous contact point all the way around the
valve face (A).
A
=
In. / mm.
Valve Seat Width:
Intake Std: .028" (.7 mm)
Limit: .055" (1.4 mm)
Exhaust Std: .039I (1.0 mm)
Limit: .071" (1.8 mm)
B
A
Proper Seat Contact
on Valve Face
Bottom 60
°
Seat 45
°
Top 30
°
Seat
Width
Содержание 2008 ranger 700 xp
Страница 1: ...POLARIS RANGER XP 700 4X4 RANGER 6X6 SERVICE MANUAL ...
Страница 3: ...POLARIS RANGER XP 700 4X4 RANGER 6X6 SERVICE MANUAL ...
Страница 15: ...1 12 GENERAL INFORMATION SAE Tap Drill Sizes Metric Tap Drill Sizes Decimal Equivalents ...
Страница 118: ...4 8 FUEL INJECTION FUEL TANK Exploded View Fuel Flow ...
Страница 136: ...5 4 BODY STEERING SUSPENSION Lower Body Components ...
Страница 302: ...10 19 ELECTRICAL 10 COOLING SYSTEM Cooling System Break Out Diagram EY N 6OLT 0OWER ...
Страница 327: ...11 1 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 CHASSIS PAGE 1 OF 2 ...
Страница 328: ...11 2 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 CHASSIS PAGE 2 OF 2 ...
Страница 329: ...11 3 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 DASH ...
Страница 330: ...11 4 WIRE DIAGRAM RANGER 700 EFI 4X4 6X6 BREAKOUTS ...