Valve Lash (Clearance) Inspection - Suzuki Grand Vitara 2011 Manual

Valve Lash (Clearance) Inspection

1) Remove negative cable at battery.
2) Remove cylinder head cover referring to "Cylinder
Head Cover Removal and Installation: For J20
Engine".
3) Using 17 mm wrench, turn crankshaft pulley (1)
clockwise until index (2) of cylinder block and index
(3) of crankshaft pulley (1) are aligned.
4) Check whether cam position (1) of No.1 cylinder is at
the specified position [A] as shown in figure.
If cam position is [B], locate cam position to [A] by
turning crankshaft one rotation.
[A]
[B]
[A]: TDC in compression for No.1 cylinder
[B]: TDC in exhaust for No.1 cylinder
5) Check valve lashes with thickness gauge (4)
according to the following procedure.
a) Check valve lashes of cylinder No.1.
b) Turn crankshaft pulley by 180° clockwise.
c) Check valve lashes of cylinder No.3.
d) In the same manner as b) – c), check valve
lashes of cylinder No.4 then cylinder No.3.
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Engine Mechanical: For J20 Engine 1D-71
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.)
When hot (Coolant temperature is 60 – 68 °C (140 –
154 °F)):
• Intake: 0.21 – 0.27 mm (0.008 – 0.011 in.)
• Exhaust: 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.
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