Suzuki SWIFT RS415 2017, Service Manual

Page: 269 / 1257

Engine Mechanical: 1D-6
Valve Lash (Clearance) Inspection
S4RS0A1404003
1) Remove negative cable at battery.
2) Remove cylinder head cover referring to “Cylinder
Head Cover Removal and Installation: ”.
3) Remove right side engine under cover, if necessary.
4) Using 17 mm wrench, turn crankshaft pulley (1)
clockwise until cam lobes (2) become perpendicular
to shim faces (3) at valves “1” and “7” as shown in
the figure.
5) Check valve lashes with thickness gauge (4)
according to the following procedure.
a) Check valve lashes at valves “1” and “7”.
b) Turn camshafts by 90
q
(by turning crankshaft
with wrench).
c) Make sure that cam lobes are perpendicular to
shim faces at valves to be checked (in this case,
“3” and “8”), if not, adjust it by turning crankshaft.
Check valve lashes.
d) In the same manner as b) – c), check valve
lashes at valves “4” and “6”.
e) In the same manner as b) – c) again, check
valve lashes at valves “2” and “5”.
If valve lash is out of specification, record valve lash and
adjust it to specification by replacing shim.
Valve clearance specification
Replacement of Shim
1) Close the valve whose shim (2) is to be replaced by
turning crankshaft, then turn tappet (3) till its cut
section (1) faces inside as shown in the figure.
When cold (Coolant
temperature is 15 –
25
q
C (59 – 77
q
F))
When hot (Coolant
temperature is 60 –
68
q
C (140 – 154
q
F))
Intake 0.18 – 0.22 mm
(0.007 – 0.009 in.) 0.21 – 0.27 mm
(0.008 – 0.011 in.)
Exhaust 0.28 – 0.32 mm
(0.011 – 0.013 in.)
0.30 – 0.36 mm
(0.012 – 0.014 in.)
I3RM0A140004-
I2RH0B140006-