Engine Vacuum Check; Valve Lash (Clearance) Inspection - Suzuki 2006 SX4 Service Manual

Engine Vacuum Check

The engine vacuum that develops in the intake line is a
good indicator of the condition of the engine. The
vacuum checking procedure is as follows:
1) Warm up engine to normal operating temperature.
NOTE
After warming up engine, be sure to place
transaxle gear shift lever in "Neutral" (Shift
selector lever to "P" range for A/T model),
and set parking brake and block drive
wheels.
2) Stop engine and turn off the all electric switches.
3) Remove air cleaner assembly referring to "Air
Cleaner Assembly Removal and Installation".
4) Remove hose (1) from PCV valve (2).
5) Connect special tool (Vacuum gauge) to PCV hose
(1).
Special tool
(A): 09915–67311
6) Blind PCV valve (2) using tape (3) or the like.
1
7) Install air cleaner assembly referring to "Air Cleaner
Assembly Removal and Installation".
8) 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
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9) After checking, remove air cleaner assembly.
10) Disconnect special tool (Vacuum gauge) from PCV
valve.
11) Detach blind cap from PCV valve.
12) Connect PCV hose to PCV valve.
13) Install air cleaner assembly.

Valve Lash (Clearance) Inspection

1) Remove negative (–) cable at battery.
2) Remove cylinder head cover referring to "Cylinder
Head Cover Removal and Installation".
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
Engine Mechanical: 1D-4
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