Valve Lash (Clearance) Inspection - Suzuki GRAND VITARA Owner's Manual

1D-6 Engine Mechanical: For M16A Engine with VVT
6) Run engine at specified idle speed and read vacuum
gauge. Vacuum should be within specification.
Vacuum specification (at sea level)
59 – 73 kPa (45 – 55 cmHg, 17.7 – 21.6 in.Hg) at
specified idle speed
7) After checking, disconnect special tool (Vacuum
gauge) from PCV hose.
8) Detach blind cap from PCV valve.
9) Connect PCV hose to PCV valve.

Valve Lash (Clearance) Inspection

1) Remove negative cable at battery.
2) Remove cylinder head cover referring to "Cylinder
Head Cover Removal and Installation: For M16A
Engine with VVT".
3) 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.
4) 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° (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
When cold (Coolant
temperature is 15 –
25 °C (59 – 77 °F))
Intake 0.18 – 0.22 mm
(0.007 – 0.009 in.)
Exhaust 0.28 – 0.32 mm
(0.011 – 0.013 in.)
S5JB0A1414003
When hot (Coolant
temperature is 60 –
68 °C (140 – 154 °F))
0.21 – 0.27 mm
(0.008 – 0.011 in.)
0.30 – 0.36 mm
(0.012 – 0.014 in.)
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.
2) Lift down the valve by turning crankshaft to 360°.
3) Hold tappet at that position using special tool as
follows.
a) Remove its housing bolts.
b) Check housing No. and select special tool
corresponding to housing No., referring to
"Special tool selection table".
I3RM0A140004-01
I2RH0B140006-01