2008 SUZUKI SWIFT Head

Downloaded from www.Manualslib.com manuals search engine 1D-37 Engine Mechanical:
Valves and Cylinder Head Disassembly and
Assembly
S7RS0B1406025
Disassembly1) For ease in servicing cylinder head, remove intake manifold, injectors, exhaust manifold from cylinder
head.
2) Using special tools (Val ve lifter), compress valve
spring and then remove valve cotters (1) also by
using special tool (Forceps).
Special tool
(A): 09916–14510
(B): 09916–14521
(C): 09916–84511 3) Release special tools (Valve lifter), and remove
spring retainer and valve spring.
4) Remove valve from combustion chamber side.
5) Remove valve stem seal (1) from valve guide and valve spring seat (2).
NOTE
Do not reuse valve stem seal once
disassembled. Be sure to use new seal when
assembling.

6) Using special tool (Valve guide remover), drive valve guide out from combustion chamber side to valve
spring side.
Special tool
(A): 09916–44910
NOTE
Do not reuse valve guide once disassembled.
Be sure to use new va lve guide (oversize)
when assembling.

7) Place disassembled parts except valve stem seal
and valve guide in order so that they can be installed
in their original position.
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Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-38
Assembly1) Before installing valve guide into cylinder head, ream
guide hole with special tool (10.5 mm reamer) so as
to remove burrs and make it truly round.
Special tool
(A): 09916–34542
(B): 09916–37320
2) Install valve guide to cylinder head. Heat cylinder head uniformly at a temperature of 80
to 100 °C (176 to 212 °F) so that head will not be
distorted, and drive new valve guide into hole with
special tools.
Drive in new valve guide until special tool (Valve
guide installer) contacts cylinder head.
After installing, ma ke sure that valve guide pr otrudes
by specified dimension “a” from cylinder head.
Special tool
(A): 09916–58210
(B): 09916–56011
NOTE
• Never reuse valve guide once disassembled. Make sure to install new
valve guide (Oversize).
• Intake and exhaust valve guides are identical.

Valve guide protrusion (In and Ex)
“a”: 11.3 mm (0.44 in.) 3) Ream valve guide bore with special tool (5.5 mm
reamer). After reaming, clean bore.
Special tool
(A): 09916–34542
(B): 09916–34550
4) Install valve spring seat to cylinder head.
5) Install new valve stem seal (1) to valve guide. After applying engine oil to seal and spindle of
special tool (Valve guide installer handle), fit oil seal
to spindle, and then install seal to valve guide by
pushing special tool by hand.
After installing, check to be sure that seal is properly
fixed to valve guide.
Special tool
(A): 09917–98221
(B): 09916–58210
NOTE
• Do not reuse seal once disassembled. Be sure to install new seal.
• When installing, never tap or hit special tool with a hammer or else. Install seal to
guide only by pushing special tool by
hand. Tapping or hitting special tool may
cause damage to seal.

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Downloaded from www.Manualslib.com manuals search engine 1D-41 Engine Mechanical:
Valve head radial runout
Check each valve for radial runout with a dial gauge and
“V” block. To check runout, rotate valve slowly. If runout
exceeds its limit, replace valve.
Valve head radial runout
Limit: 0.08 mm (0.003 in.)
Seating contact width
Create contact pattern on each valve in the usual
manner, i.e., by giving uniform coat of marking
compound to valve seat and by rotatingly tapping seat
with valve head. Valve lapper (tool used in valve lapping)
must be used.
Pattern produced on seating face of valve must be a
continuous ring without any break, and the width of
pattern must be within specified range.
Standard seating width “a” revealed by contact
pattern on valve face
Intake and Exhaust: 1.0 – 1.4 mm (0.0389 – 0.0551
in.)Valve seat repair
A valve seat not producing
a uniform contact with its
valve or showing width of seating contact that is out of
specified range must be repaired by regrinding or by
cutting and regrinding and finished by lapping.
1) Exhaust valve seat:
Use valve seat cutters (1 ) to make two cuts as
illustrated in the figure. Two cutters must be used:
the first for making 22 ° angle, and the second for
making 45 ° angle. The second cut must be made to
produce desired seat width.
Seat width for exhaust valve seat
“a”: 1.0 – 1.4 mm (0.0389 – 0.0551 in.)
2) Intake valve seat:
Use valve seat cutters (1) to make three cuts as
illustrated in the figure. Th ree cutters must be used:
the 1st for making 22 ° angle, the 2nd for making 60 °
angle, and 3rd for making 45 ° angle. The 3rd cut
(45 °) must be made to produce desired seat width.
Seat width for intake valve seat
“b”: 1.0 – 1.4 mm (0.0389 – 0.0551 in.)
3) Valve lapping:
Lap valve on seat in two steps, first with coarse size
lapping compound applied to face and the second
with fine-size compound, each time using valve
lapper according to usual lapping method.
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Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-42
Cylinder Head InspectionS7RS0B1406027
• Remove all carbon deposits from combustion chambers.
NOTE
Do not use any sharp-edged tool to scrape
off carbon deposits. Be careful not to scuff or
nick metal surfaces when decarbonizing. The
same applies to valves and valve seats, too.

• Check cylinder head for cracks on intake and exhaust ports, combustion chambers, and head surface. Using
a straightedge and thickness gauge, check flatness of
gasketed surface at a total of 6 locations. If distortion
limit is exceeded, correct gasketed surface with a
surface plate and abrasive paper of about #400
(Waterproof silicon carbide abrasive paper): place
abrasive paper on and over surface plate, and rub
gasketed surface against paper to grind off high spots.
Should this fail to reduce thickness gauge readings to
within limit, replace cylinder head.
Leakage of combustion gases from this gasketed joint
is often due to warped gasketed surface: such
leakage results in reduced power output.
Distortion for cylinder head surface on piston side
Limit: 0.03 mm (0.001 in.) • Distortion of manifold seating faces:
Check seating faces of cylinder head for manifolds,
using a straightedge and thickness gauge, in order to
determine whether these faces should be corrected or
cylinder head replaced.
Distortion for cylinder head surface on intake and
exhaust manifold
Limit: 0.05 mm (0.002 in.)
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Downloaded from www.Manualslib.com manuals search engine 1D-45 Engine Mechanical:
Pistons, Piston Rings, Connecting Rods and
Cylinders Removal and Installation
S7RS0B1406030
Removal1) Remove engine assembly from vehicle referring to “Engine Assembly Removal and Installation”.
2) Remove cylinder head referring to “Valves and Cylinder Head Removal and Installation”.
3) Mark cylinder number on all pistons, connecting rods
and connecting rod caps using silver pencil or quick
drying paint.
4) Remove rod bearing caps.
5) Decarbonize top of cylinder bore before removing piston from cylinder.
6) Push piston and connecting rod assembly out through the top of cylinder bore.
Installation 1) Apply engine oil to pistons, rings, cylinder walls, connecting rod bearings and crank pins.
NOTE
Do not apply oil between connecting rod and
bearing or between bearing cap and bearing.

2) When installing piston and connecting rod assembly into cylinder bore, point front mark or arrow mark (1)
on piston head to crankshaft pulley side. 3) Install piston and connecting rod assembly into
cylinder bore. Use special tool (Piston ring
compressor) to compress rings. Guide connecting
rod into place on crankshaft.
Using a hammer handle, tap piston head to install
piston into bore. Hold ring compressor firmly against
cylinder block until all piston rings have entered
cylinder bore.
Special tool
(A): 09916–77310
4) Install bearing cap (1): Point arrow mark (2) on cap to crankshaft pulley
side.
After applying engine oil to bearing cap bolts and
tighten bolts gradually as follows.
a) Tighten all bolts to 15 N ⋅m (1.5 kgf-m, 11.0 lb-ft).
b) Retighten them to 45 °.
c) Repeat Step b) once again.
NOTE
Before installing bearing cap, make sure that
checking for bearing cap bolt deformation.
Refer to “Piston Pins and Connecting Rods
Inspection”.

Tightening torque
Connecting rod bearing cap bolt: 15 N ⋅m (1.5
kgf-m, 11.0 lb-ft) and then retighten by
turning through 45 ° twice
5) Install cylinder head referring to “Valves and Cylinder Head Removal and Installation”.
A: Crankshaft pulley side
B: Flywheel side
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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.
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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
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Downloaded from www.Manualslib.com manuals search engine 1D-57 Engine Mechanical:
11) Install flywheel (drive plate for A/T).Using special tool, lock flyw heel or drive plate, and
tighten flywheel or drive plate bolts to specified
torque.
NOTE
Use new flywheel or drive plate bolts.

Special tool
(A): 09924–17811
Tightening torque
Flywheel or drive plate bolt (a): 70 N·m (7.0 kgf-
m, 51.0 lb-ft)
12) Install piston and connecting rod referring to “Pistons, Piston Rings, Connecting Rods and
Cylinders Removal and Installation”.
13) Install cylinder head referring to “Valves and Cylinder Head Removal and Installation”.
14) Install camshafts, tappet and shim referring to “Camshaft, Tappet and Shim Removal and
Installation”.
15) Install timing chain referring to “Timing Chain and Chain Tensioner Removal and Installation”.
16) Install timing chain cover referring to “Timing Chain Cover Removal and Installation”.
17) Install cylinder head cover referring to “Cylinder Head Cover Removal and Installation”.
18) Install oil pan referring to “Oil Pan and Oil Pump
Strainer Removal and Installation in Section 1E”
19) Install engine assembly to vehicle referring to “Engine Assembly Removal and Installation”.
Crankshaft InspectionS7RS0B1406037
Crankshaft Runout
Using a dial gauge, measure runout at center journal.
Rotate crankshaft slowly. If runout exceeds its limit,
replace crankshaft.
Crankshaft runout
Limit: 0.02 mm (0.0008 in.)
Crankshaft Thrust Play
1) Measure this play with crankshaft set in cylinder block in the normal manner, that is with thrust
bearing (1) and journal bearing caps installed.
Thickness of crankshaft thrust bearing
Standard: 2.500 mm (0.0984 in.)
Oversize (0.125 mm (0.0049 in.)): 2.563 mm
(0.1009 in.)
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Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-64
Honing or Reboring Cylinders1) When any cylinder needs reboring, all other cylinders must also be rebored at the same time.
2) Select oversized piston according to amount of cylinder wear.
Oversize piston specification
Oversize 0.50: 78.453 – 78.468 mm (3.0887 –
3.0893 in.)
3) Using micrometer, measure piston diameter. Measurement position for piston diameter
“a”: 7.0 mm (0.28 in.) 4) Rebore and hone cylinder to the following
dimension.
NOTE
Before reboring, install all main bearing caps
in place and tighten to specification to avoid
distortion of bearing bores.

Cylinder bore diameter to be rebored
Oversize 0.50: 78.500 – 78.514 mm (3.0906 –
3.0911 in.)
5) Measure piston clearance after honing. Piston clearance
0.032 – 0.061 mm (0.0013 – 0.0024 in.)
Specifications
Tightening Torque SpecificationsS7RS0B1407001
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Fastening part Tightening torque
Note
N ⋅mkgf-mlb-ft
Camshaft housing bolt 11 1.1 8.0 )
Cylinder head cover bolt Tighten 3 N ⋅m (0.3 kgf-m, 2.5 lb-ft), 5 N ⋅m
(0.5 kgf-m, 4.0 lb-ft) and 8 N ⋅m (0.8 kgf-m,
6.0 lb-ft) by the specified procedure )
Intake manifold bolt 23 2.3 17.0 )
Intake manifold nut 23 2.3 17.0 )
Intake manifold ground terminal bolt 11 1.1 8.0 )
Engine left mounting bracket nut 55 5.5 40.0 )
Engine right mounting nut 65 6.5 47.0 )
Engine rear mounting bush bolt 55 5.5 40.0 )
Starting motor terminal nut 11 1.1 8.0 )
Generator terminal nut 6 0.6 4.5 )
Intake manifold ground terminal bolt 11 1.1 18.0 )
Timing chain cover bolt 25 2.5 18.0 )
Timing chain cover nut 25 2.5 18.0 )
Cap bolt 25 2.5 18.0 )
Oil gallery pipe No.2 and No.3 bolt 11 1.1 8.0 )
Crankshaft pulley bolt 150 15.0 108.5 )
Oil control valve mounting nut 11 1.1 8.0 )
Oil gallery pipe No.1 bolt 30 3.0 21.5 )
Timing chain No.1 guide bolt 9 0.9 6.5 )
Timing chain tensioner bolt 25 2.5 18.0 )
Timing chain tensioner adjuster bolt 11 1.1 8.0 )
Camshaft housing bolt 5 N ⋅m (0.5 kgf-m, 4.0 lb-ft) and 11 N ⋅m (1.1
kgf-m, 8.0 lb-ft) by the specified procedure )
/ )
Intake cam timing sprocket bolt 60 6.0 43.5 )
Venturi plug 3.5 0.35 3.0 )
Cylinder head bolt for M8 25 2.5 18.0 )
Cylinder head bolt for M10 20 N ⋅m (2.0 kgf-m, 14.5 lb-ft), 40 N ⋅m (4.0
kgf-m, 29.0 lb-ft) and then retighten by
turning through to 60 ° twice )