0B-7 Maintenance and Lubrication:
14) Turn the crankshaft 486 degrees (1-1/3 turns) to set
the #2 (Front) cylinder at TDC of compression
stroke. (Align the “F | T” line on the generator rotor to
the center of valve timing inspection hole and also
bring the camshafts to the position as shown.
15) Inspect the #2 (Front) cylinder tappet clearance as
the same manner of #1 (Rear) cylinder and adjust
the clearance if necessary.
Special tool
(A): 09900–20803 (Thickness gauge)
Adjustment
The clearance is adjusted by replacing the existing
tappet shim with a thicker or thinner shim.
1) Remove the intake or exhaust camshafts. Refer to
“Engine Top Side Disassembly in Section 1D
(Page 1D-25)”.
2) Remove the tappet (1) and shim (2) by fingers or
magnetic hand.
3) Check the figures printed on the shim. These figures
indicate the thickness of the shim, as illustrated.
4) Select a replacement shim that will provide a
clearance within the specified range. For the
purpose of this adjustment, a total of 25 sizes of
tappet shim are available ranging from 2.30 to 3.50
mm in steps of 0.05 mm.
CAUTION
!
Both the right and left valve clearances
should be as closely as possible.
5) Fit the selected shim (2) to the valve stem end, with
numbers toward tappet. Be sure to check shim size
with micrometer to ensure its size.
NOTE
• Be sure to apply engine oil to tappet shim
top and bottom faces.
• When seating the tappet shim, be sure the
figure printed surface faces the tappet.
F
T
I822H1020020-01
EX.
IN.
“A”
I822H1020023-01
(A)
I822H1020014-02
1
2
I822H1020018-02
2.90 mm
290
I822H1020024-01
2
I718H1020002-02
Содержание VLR1800
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