compression SUZUKI SWIFT 2007 2.G Service User Guide

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-4
Targeted Timing Varying Operation
Diagnostic Information and Procedures
Compression CheckS7RS0B1404001
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”, and set parking
brake and block drive wheels.

3) Disconnect negative cable at battery.
4) Remove engine cover.
5) Remove air cleaner assembly and air suction hose referring to “Air Cleaner Components”.
6) Remove cylinder head upper cover.
7) Disconnect ignition coil couplers (1).
8) Remove ignition coil assemblies (2) with high- tension cord (3).
9) Remove all spark plugs.
10) Disconnect fuel injector wires (4) at the coupler. Driving condition Valve timing Target of control Effect
Engine running at idle
speed Most retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to in
take manifold. Stabilization of the engine
rotation at idle speed.
Average engine load
range To the advanced
sideTo lengthen the valve opening overlap
in order to enhance the internal
exhaust gas recirculation and reduce
the pumping loss. Improvement of the fuel
efficiency.
Lowering of the exhaust
emission.
Light engine load
range To the retarded sideTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to in
take manifold. Keeping of the engine stability.
Low or average
engine speed range
with heavy engine
load To the advanced
side
To advance the closing timing of the
intake valve in order to improve the
volumetric efficiency. Improvement of generating the
engine torque at low and
average engine speed.
High engine speed
range with heavy
engine load To the retarded sideTo retard the closing timing of the
intake valve in order to improve the
volumetric efficiency. Improvement of generating the
engine power.
Low engine coolant
temperature Most retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold and
reduce the fuel increasing.
To slow the fast idle speed of the
engine as a result of stabilizing the
engine idling. Stabilization of the fast idling of
the engine.
Improvement of the fuel
efficiency.
At engine starting and
stopping Most retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to in
take manifold. Improvement of start ability.I2RH0B140003-01

Downloaded from www.Manualslib.com manuals search engine 1D-5 Engine Mechanical:
11) Connect negative cable at battery.
12) Install special tools (Compression gauge) into spark plug hole.
Special tool
(A): 09915–64512
(B): 09915–64530
(C): 09915–67010
13) 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.
14) 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/cm2, 199.0 psi)
Limit: 1100 kPa (11.0 kg/cm2, 156.0 psi)
Max. difference between any two cylinders: 100
kPa (1.0 kg/cm
2, 14.2 psi) 15) Carry out Steps 12) through 14) on each cylinder to
obtain 4 readings.
16) Disconnect negative cable at battery.
17) After checking, install spark plugs and ignition coil assemblies (2) with high-tension cord (3).
18) Connect ignition coil couplers (1).
19) Connect fuel injector wires (4) at the coupler.
20) Install cylinder head upper cover.
21) Install air cleaner assembly and air suction hose referring to “Air Cleaner Components”.
22) Install engine cover.
23) Connect negative cable at battery.
Engine Vacuum CheckS7RS0B1404002
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”, and set
parking brake and block drive wheels.

2) Stop engine and turn off the all electric switches.
3) Remove engine cover.
4) Remove air cleaner assembly and air suction hose referring to “Air Cleaner Components”.
5) Remove PCV hose (1) from PCV valve (2).
(A)
(C)
(B)
I3RH0B140009-01
I2RH0B140005-01
I2RH0B140003-01
2
1
I6RS0B141001-01

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-46
Pistons, Piston Rings, Connecting Rods and
Cylinders Disassembly and Assembly
S7RS0B1406031
Disassembly1) Using piston ring expander, remove two compression rings (Top and 2nd) and oil ring from
piston.
2) Remove piston pin from connecting rod as follows. a) Ease out piston pin circlip (1), as shown.
b) Force piston pin out.
Assembly 1) Decarbonize piston head and ring grooves using a suitable tool.
2) Install piston pin to piston (1) and connecting rod (2): a) After applying engine oil to piston pin and piston pin holes in piston and connecting rod.
b) Fit connecting rod as shown in figure.
NOTE
Be sure to position front mark or arrow mark
(4) on piston and oil hole (5) of connecting
rod at specified position as shown in figure.

c) Insert piston pin to piston and connecting rod.
d) Install piston pin circlips (3).
NOTE
Circlip should be installed with its cut part
facing as shown in figure. Install so that
circlip end gap comes within such range as
indicated by arrow.

3) Install piston rings to piston:
• As indicated in the figure, 1st and 2nd rings have discrimination mark (4) respectively. When
installing these piston rings to piston, direct
marked side of each ring toward top of piston.
• 1st ring (1) differs from 2nd ring (2) in thickness, shape and color of surface contacting cylinder
wall.
Distinguish 1st ring from 2nd ring by referring to
the figure.
• When installing oil ring (3), install spacer first and then two rails.
4) After installing three rings (1st, 2nd and oil rings), distribute their end gaps as shown in figure.
I2RH0B140113-01
I2RH0B140114-01
1. 1st ring end gap 3. Oil ring upper rail gap
2. 2nd ring end gap and oil ring spacer gap 4. Oil ring lower rail gap
I6RS0C140022-01
I6RS0C140023-01
I6RS0B141018-01

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-66
Special Tools and Equipment
Recommended Service MaterialS7RS0B1408001
NOTE
Required service material is also described in the following.
“Timing Chain Cover Components”
“Timing Chain and Chain Tensioner Components”
“Camshaft, Tappet and Shim Components”
“Valves and Cylinder Head Components”
“Pistons, Piston Rings, Connecting Rods and Cylinders Components”
“Main Bearings, Crankshaft and Cylinder Block Components”

Special ToolS7RS0B1408002
Material SUZUKI recommended product or Specification Note
Sealant SUZUKI Bond No.1217G P/No.: 99000–31260)
Water tight sealant SUZUKI Bond No.1207B P/No.: 99000–31140)
SUZUKI Bond No.1207F P/No.: 99000–31250) / ) / )
09911–97720 09911–97821
Oil seal installer Oil seal installer
))
09913–75810 09915–64512
Bearing installer Compression gauge
))
09915–64530 09915–67010
Compression gauge hose Compression gauge
attachment (C)
))
09915–67311 09916–14510
Vacuum gauge Valve lifter
)) / )
09916–14521 09916–34542
Valve spring compressor
attachment Reamer handle
) / )) / )

Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-1
Engine
Ignition System
General Description
Ignition System ConstructionS7RS0B1801001
The ignition system is an electronic (distributorless) ignition system. It consists of the parts as described below.
• ECM
It detects the engine and vehicle conditions through the si gnals from the sensors, determines the most suitable
ignition timing and time for electricity to flow to the primar y coil and sends a signal to the ignitor (power unit) in the
ignition coil assembly.
• Ignition coil assembly (including an ignitor)
The ignition coil assembly has a built -in ignitor which turns ON and OFF the current flow to the primary coil
according to the signal from ECM. When the current flow to the primary coil is turned OFF, a high voltage is induced
in the secondary coil.
• High-tension cords and spark plugs
• CMP sensor (Camshaft position sensor) and CKP sensor (Crankshaft position sensor)
Using signals from these sensors, ECM identifies the specific cylinder whose piston is in the compression stroke,
detects the crank angle and adjusts in itial ignition timing automatically.
• TP sensor, ECT sensor, MAP sensor, MAF sensor, IAT sensor, knock sensor and other sensors / switches
Although this ignition system does not have a distributor, it has two ignition coil assemblies (one is for No.1 and No.4
spark plugs and the other is for No.2 and No.3 spark plugs). W hen an ignition signal is sent from ECM to the ignitor in
the ignition coil assembly for No.1 and No.4 spark plugs, a high voltage is induced in the secondary coil and that
passes through the high-tension cords and causes No.1 and No.4 spark plugs to spark simultaneously. Likewise,
when an ignition signal is sent to the ignitor in the ot her ignition coil assembly, No.2 and No.3 spark plugs spark
simultaneously.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-117
47) Remove O/D and 2nd coast brake retaining plate snap ring (1).
48) Remove front planetary sun gear (1).
49) Remove front sun gear thrust bearing race (2) from front planetary sun gear (1).
50) Using special tool and hydraulic press, remove 2nd brake piston snap ring (1).
CAUTION!
Do not press 2nd brake piston assembly in
over 0.4 mm (0.016 in.).
Excessive compression may cause damage
to piston assembly, return spring, plates and/
or discs.

Special tool
(A): 09926–96050 51) Remove 2nd brake piston assembly (1).
52) Remove 2nd brake return spring subassembly (2).
53) Remove 2nd brake separator plates (1), discs (2)
and retaining plate (3).
54) Remove brake drum gasket (1).
I2RH0B510120-01
I2RH0B510121-01
I2RH0B510122-01
I2RH0B510124-01
1
2
I4RS0A510038-01
I2RH0B510127-01
I2RH0B510128-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-119
60) Remove snap ring while the 1st and reverse brake piston return springs are compressed using special
tool and hydraulic press.
CAUTION!
Do not press 1st and reverse brake return
spring subassembly in over 0.8 mm (0.031
in.).
Excessive compression may cause damage
to return spring subassembly, discs, plates
and/or piston.

Special tool
(A): 09926–97620
61) Remove 1st and reverse brake retaining plate, discs and separator plates.
62) Remove 1st and reverse brake return spring subassembly (1).
63) Turn over transaxle and uncaulk reduction drive gear nut (1). 64) Secure reduction drive gear (1) with parking lock
pawl, then remove reduction drive gear nut.
CAUTION!
• It is recommended that this operation should be carried out on rubber mat to
prevent damaging transaxle case.
• Never reuse removed nut.

65) Using special tools and hydraulic press, remove planetary ring gear subassembly (1).
CAUTION!
Do not reuse planetary ring gear
subassembly. Otherwise it may cause
damage to planetary gear unit and/or
reduction gears.

Special tool
(A): 09913–84510
(B): 09923–78210
66) Remove parking lock pawl shaft, then spring (2) and parking lock pawl (1).
I2RH0B510134-01
I2RH0B510135-01
I2RH0B510136-01
I2RH0B510137-02
I2RH0B510138-01
I2RH0B510139-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-125
Direct Clutch Assembly Disassembly and
Reassembly
S7RS0B5106039
Disassembly1) Remove plate snap ring (1) then remove direct clutch retaining plate, discs and separator plates.
2) Using special tool and hydraulic press, remove shaft snap ring (1).
Special tool
(A): 09926–98310
CAUTION!
Do not press direct clutch return spring
subassembly in over 0.7 mm (0.027 in.).
Excessive compression may cause damage
to direct clutch return spring subassembly
and/or piston.

3) Remove direct clutch re turn spring assembly (2).
4) Using a finger to block oil hole (1), apply compressed air (400 – 800 kPa, 4 – 8 kg/cm
2, 57 –
113 psi) to opposite hole, which will assist in removal
of the clutch piston. 5) Remove outer O-ring (1).
6) Remove inner O-ring (2).
7) Remove input shaft seal rings (1).
I2RH0B510162-01
I2RH0B510163-01
I2RH0B510164-01
2. Direct clutch piston
1. Input shaft subassembly
I2RH0B510165-01
I2RH0B510166-01
I2RH0B510167-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-129
Forward and Reverse Clutch Assembly
Preliminary Check
S7RS0B5106042
1) Install forward and reverse clutch assembly (1) to
transaxle rear cover (2), blow in compressed air (400
– 800 kPa, 4 – 8 kg/cm
2, 57 – 113 psi) through oil
hole (4) of transaxle rear cover with the special tool
attached on the upper surf ace of reverse clutch
retaining plate (3), and measure reverse clutch
piston stroke.
If piston stroke exce eds specified value,
disassemble, inspect and replace inner parts.
Special tool
(A): 09900–20607
(B): 09900–20701
Reverse clutch piston stroke
1.20 – 1.60 mm (0.047 – 0.063 in.)
2) Blow compressed air (400 – 800 kPa, 4 – 8 kg/cm
2,
57 – 113 psi) through oil hole (1) of transaxle rear
cover with the special tool attached on the upper
surface of forward clutch retaining plate, and
measure forward clutch piston stroke.
If piston stroke exce eds specified value,
disassemble, inspect and replace inner parts.
Special tool
(A): 09900–20607
(B): 09900–20701
(C): 09952–06020
Forward clutch piston stroke
1.30 – 1.50 mm (0.051 – 0.059 in.)
Forward and Reverse Clutch Assembly
Disassembly and Reassembly
S7RS0B5106043
Disassembly
1) Remove reverse clutch plate snap ring (1) and take out reverse clutch retaini ng plate, discs, separator
plates and clutch cushion plate from intermediate
shaft subassembly.
2) Remove forward clutch plate snap ring (1) and take out forward clutch retaining plate, discs and
separator plates from forward clutch drum.
3) Remove balancer snap ring by using special tool and hydraulic press.
Special tool
(A): 09926–97610
CAUTION!
Do not press forward clutch return spring
subassembly in over 1.5 mm (0.059 in.).
Excessive compression may cause damage
to return spring subassembly and/or
balancer.

I2RH0B510176-01
I2RH0B510177-02
I2RH0B510178-01
I2RH0B510179-01

Downloaded from www.Manualslib.com manuals search engine 5A-136 Automatic Transmission/Transaxle:
Transaxle Rear Cover (O/D and 2nd Coast Brake
Piston) Assembly Disassembly and
Reassembly
S7RS0B5106048
Disassembly1) Remove snap ring by using special tools and hydraulic press.
Special tool
(A): 09926–96030
(B): 09946–06710
CAUTION!
Do not press O/D and 2nd coast brake return
spring subassembly in over 1.0 mm (0.039
in.).
Excessive compression may cause damage
to O/D and 2nd coast brake return spring
subassembly and/or piston.

2) Remove O/D and 2nd coast brake return spring assembly.
3) Apply compressed air (400 – 800 kPa, 4 – 8 kg/cm
2,
57 – 113 psi) to oil hole (2) of transaxle rear cover (1)
to remove O/D and 2nd coast brake piston. 4) Remove O/D and 2nd coast brake piston front O-ring
(1) and rear O-ring (2).
5) Remove rear cove r seal rings (1).
6) Remove rear cover plugs (1).
1. Transaxle rear cover
I2RH0B510201-01
I2RH0B510202-01
I2RH0B510203-01
I2RH0B510204-01
I2RH0B510205-01