Valve Lash (Clearance) Inspection - Suzuki GRAND VITARA 2005 Service Manual

9) Crank engine with fully charged battery, and read the
highest pressure on compression gauge.
NOTE
• For measuring compression pressure,
crank engine at least 250 r/min. by using
fully charged battery.
• If measured compression pressure is
lower than limit value, check installation
condition of special tool. If it is properly
installed, possibility is compression
pressure leakage from where piston ring or
valve contact.
Compression pressure
Standard:
2200 – 2600 kPa (22 – 26kgf/cm
Limit:
Min. 2100 kPa (21 kgf/cm
Max. 2700 kPa (27 kgf/cm
Max. difference between any two cylinders:
400 kPa (4 kgf/cm 2 , 58 psi)
10) Carry out Steps 7) through 9) on each cylinder to
obtain 4 readings.
11) Disconnect negative (–) cable at battery.
12) After checking, install glow plugs referring to "Glow
Plug Removal and Installation: in Section 1C".
13) Connect ECM connectors and pre-heating unit
connector.
14) Connect negative (–) cable at battery.

Valve Lash (Clearance) Inspection

1) Remove negative cable at battery.
2) Remove cylinder head cover referring to "Cylinder
Head Cover Removal and Installation: ".
3) Turn crankshaft pulley (1) clockwise until cam lobe
(2) becomes perpendicular to tappet face (3) at
valves "1" and "6" as shown in figure.
4) Check valve lashes with thickness gauge (4)
according to the following procedure.
a) Check valve lashes at valves "1" and "6".
b) Turn camshaft by 90° by turning crankshaft
pulley with wrench.
c) Make sure that cam lobe is perpendicular to
tappet face at valves to be checked (in this case,
"5" and "8"), if not, adjust camshaft position by
turning crankshaft pulley. Check valve lashes.
d) In the same manner as b) – c), check valve
lashes at valves "4" and "7".
e) In the same manner as b) – c) again, check
valve lashes at valves "2" and "3".
2 , 319 – 392psi)
2 , 304.5 psi)
2 , 391.5 psi)
S5JB0B1404003
If valve lash (clearance) is out of specification,
record valve lash (clearance) and adjust it to
specification referring to "Valve Lash (Clearance)
Adjustment: ".
Valve lash (clearance) specification
Intake
Exhaust
4
"8" "7" "6" "5"
5. Fly wheel side
Engine Mechanical:
When cold
0.15 – 0.25 mm
(0.0060 – 0.0098 in.)
0.35 – 0.45 mm
(0.0138 – 0.0177 in.)
1
2
3
"4" "3" "2" "1"
I5JB0B140003-03
1D-2
5