Suzuki Liana RH413, Service Manual

Page: 207 / 1302

Engine Mechanical: 1D-2
Diagnostic Information and Procedures
Compression Check
S3RH0A1404001
Check compression pressure on all 4 cylinders as
follows:
1) Warm up engine to normal operating temperature.
2) Stop engine after warming up.
NOTE
After warming up engine, 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.
3) Remove cylinder head upper cover (1).
4) Disconnect ignition coil couplers (1).
5) Disconnect ignition coil assemblies (2) with high-
tension cord (3).
6) Remove all spark plugs.
7) Disconnect fuel injector wires (4) at the coupler.
8) Install special tool (Compression gauge) into spark
plug hole.
Special tool
(A): 09915–64510–001
(B): 09915–64510–002
(C): 09915–64530
(D): 09915–67010
9) Disengage clutch (1) (to lighten starting load on
engine) for M/T vehicle, and depress accelerator
pedal (2) all the way to make throttle fully open.
10) 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
and valve contact.
Compression pressure
Standard: 1400 kPa (14.0 kg/cm
2 , 199.0 psi)
Limit: 1100 kPa (11.0 kg/cm 2 , 156.0 psi)
Max. difference between any two cylinders: 100
kPa (1.0 kg/cm
2 , 14.2 psi)
11) Carry out Steps 8) through 10) on each cylinder to
obtain 4 readings.
12) After checking, install spark plugs and ignition coil
assembles (1) with high-tension cord (2).
13) Connect ignition coil couplers (3).
14) Connect fuel injector wires (4) at the coupler.
I2RH0B140002-01
I2RH0B140003-01
I2RH0B140004-01
I2RH0B140005-01