3.22
ENGINE
Cylinder Head Reconditioning
NOTE:
Servicing the valve guides and valve seats
requires special tools and a thorough knowledge of
reconditioning techniques. Follow the instructions
provided in the Valve Seat Reconditioning Kit (
PN
2200634
).
Follow the manufacturers instructions provided with the
valve seat cutters in the Valve Seat Reconditioning Kit
(
PN 2200634
). Abrasive stone seat reconditioning
equipment can also be used. Keep valves in order with
their respective seat.
NOTE:
Valve seat width and point of contact on the valve
face is very important for proper sealing. The valve must
contact the valve seat over the entire circumference of
the seat, and the seat must be the proper width all the
way around. If the seat is uneven, compression leakage
will result. If the seat is too wide, seat pressure is
reduced, causing carbon accumulation and possible
compression loss. If the seat is too narrow, heat transfer
from valve to seat is reduced and the valve may overheat
and warp, resulting in burnt valves.
1.
Install pilot into valve guide.
2.
Apply cutting oil to valve seat and cutter.
3.
Place 46
o
cutter on the pilot and make a light cut.
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
o
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
and must be replaced. Be sure the cylinder head is at
the proper temperature and replace the guide.
• 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
o
)apply black marker to the entire valve face (A).
6.
Insert valve into guide and tap valve lightly into place
a few times.
CAUTION
Wear eye protection when performing cylinder
head service. Valve guide replacement will require
heating of the cylinder head. Wear gloves to pre-
vent burns.
(A)
Содержание 2006 HAWKEYE 2x4
Страница 84: ...NOTES ENGINE 3 46 ...
Страница 104: ...NOTES FUEL SYSTEM CARBURETION 4 20 ...
Страница 111: ...5 7 BODY AND STEERING POD EXPLODED VIEW ...
Страница 121: ...5 17 BODY AND STEERING ...
Страница 122: ...5 18 BODY AND STEERING ...
Страница 123: ...5 19 BODY AND STEERING ...
Страница 124: ...NOTES BODY AND STEERING 5 20 ...
Страница 152: ...7 10 FINAL DRIVE FRONT GEARCASE CENTRALIZED HILLIARD EXPLODED VIEW ...
Страница 181: ...8 13 CVT TRANSMISSION TRANSMISSION 18 ft lbs 24 5 Nm ...
Страница 186: ...NOTES CVT TRANSMISSION 8 18 ...
Страница 210: ...9 24 ELECTRICAL STARTER MOTOR EXPLODED VIEW BRUSH LENGTH SERVICE LIMIT 5 16 8 MM ...
Страница 216: ...NOTES ELECTRICAL 9 30 ...
Страница 217: ...10 1 WIRE DIAGRAM 2006 HAWKEYE 2X4 4X4 ...