Grand Vitara 4WD L4-2.4L (2009)
9) Crank engine with fully charged battery, and read the highest pressure on compression gauge.
NOTE:
^
For measuring compression pressure, crank engine at least 200 rpm by using fully charged battery.
^
If measured compression pressure is lower than limit value, check installation condition of special tool.
^
If the measured compression pressure of particular cylinder is lower than limit, add bit of engine oil into the cylinder through the spark plug
hole, and then repeat the compression check.
^
If the compression pressure increases after adding engine oil, there is possibility of the following cause.
^ The pressure leakage is caused by worn piston rings or worn cylinder.
^
If the compression pressure does not increase significantly, there is possibility of the following causes.
^ Incorrect valve timing.
^ The pressure leakage is at the valves and the valve seats.
^ The pressure leakage is at the cylinder head gasket.
Compression pressure
Standard: 1,400 kPa (14.3 kgf/cm2, 203 psi)
Limit: 1,100 kPa (11.2 kgf/cm2, 160 psi)
Max. difference between any two cylinders: 100 kPa (1.02 kgf/cm2, 14.5 psi)
10) Carry out Steps 7) through 9) on each cylinder.
11) Install spark plugs and ignition coil assemblies.
12) Connect fuel injector connectors.
13) Install engine cover.
