ENGINE
GL6000A-AU-B, GL6000D-AU-B,GL9000A-AU-B, GL9000D-AU-B, WSM
1-S45
Replacing Valve Guide
(When removing)
1. Press out the used valve guide using a valve guide replacing
tool. (Refer to
"SPECIAL TOOLS"
.)
(When installing)
1. Clean a new valve guide and valve guide bore, and apply
engine oil to them.
2. Press in a new valve guide using a valve guide replacing tool.
3. Ream precisely the I.D. of the valve guide to the specified
dimension.
IMPORTANT
• Do not hit the valve guide with a hammer during
replacement.
9Y1211607ENS0069US0
Correcting Valve and Valve Seat
NOTE
• Before correcting the valve and seat, check the valve stem
and the I.D. of valve guide section, and repair them if
necessary.
• After correcting the valve seat, be sure to check the valve
recessing.
1) Correcting Valve
1. Correct the valve with a valve refacer.
2) Correcting Valve Seat
1. Slightly correct the seat surface with a 0.79 rad (45°) valve seat
cutter (Code No. 07909-33102).
2. Fitting the valve, check the contact position of the valve face
and seat surface with prussian blue. (Visual check) [If the valve
has been used for a long period, the seat tends to come in
contact with the upper side of the valve face.]
3. Grind the upper surface of the seat with a 0.26 rad (15°) valve
seat cutter until the valve seat touches to the center of the valve
face (so that
(a)
equals
(b)
as shown in the figure.).
4. Grind the seat with a 0.79 rad (45°) valve seat cutter again, and
visually recheck the contact between the valve and seat.
5. Repeat steps 3 and 4 until the correct contact is achieved.
6. Continue lapping until the seated rate becomes more than 70 %
of the total contact area.
9Y1211607ENS0070US0
Valve guide I.D.
(Intake and exhaust)
Factory specification
6.010 to 6.025 mm
0.2367 to 0.2372 in.
(A) When Removing
(B) When Installing
Valve face angle
Factory specification
0.79 rad
45°
Valve seat angle
Factory specification
0.79 rad
45°
(1) Valve Seat Cutter
(A) Check Contact
(B) Correct Seat Width
(C) Correct Seat Surface
(D) Check Contact
(a) 0.26 rad (15°)
(b) 0.79 rad (45°)
(c) Valve Seat Width
(d) Identical Dimension
KiSC issued 06, 2016 A
Содержание GL6000A-AU-B
Страница 3: ...I INFORMATION KiSC issued 06 2016 A ...
Страница 20: ...G GENERAL KiSC issued 06 2016 A ...
Страница 56: ...1 ENGINE KiSC issued 06 2016 A ...
Страница 124: ...2 GENERATOR KiSC issued 06 2016 A ...
Страница 142: ...GENERATOR GL6000A AU B GL6000D AU B GL9000A AU B GL9000D AU B WSM 2 M17 2 GL6000D AU B KiSC issued 06 2016 A ...
Страница 143: ...GENERATOR GL6000A AU B GL6000D AU B GL9000A AU B GL9000D AU B WSM 2 M18 3 GL9000A AU B KiSC issued 06 2016 A ...
Страница 144: ...GENERATOR GL6000A AU B GL6000D AU B GL9000A AU B GL9000D AU B WSM 2 M19 4 GL9000D AU B KiSC issued 06 2016 A ...