2008 SUZUKI SWIFT APP

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-34
Valves and Cylinder Head ComponentsS7RS0B1406023
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1. Valve cotters7. Exhaust valve 13. Cylinder head bolt (M8)
: Be sure to tighten cylinder head bolt (M8) after
securing the other cylinder head bolt (M10).
2. Valve spring retainer 8. Valve guide : Tighten 20 N⋅m (2.0 kgf-m, 14.5 lb-ft), 40 N ⋅m (4.0 kgf-
m, 29.0 lb-ft), 60 ° and 60 ° by the specified procedure.
3. Valve spring 9. Cylinder head bolt (M10)
: Never reuse cylinder head bolts once disassembled it
due to plastic deformation tightening. Be sure to use new
cylinder head bolts when installing. : 25 N
⋅m (2.5 kgf-m, 18.0 lb-ft)
4. Valve stem seal 10. Cylinder head : Do not reuse.
5. Valve spring seat 11. Cylinder head gasket
: “TOP” mark provided on gasket comes to crankshaft
pulley side, facing up. : Apply engine oil to sliding surface of each part.
6. Intake valve 12. Dowel pin

Downloaded from www.Manualslib.com manuals search engine 1D-35 Engine Mechanical:
Valves and Cylinder Head Removal and
Installation
S7RS0B1406024
Removal1) Remove engine assembly from vehicle referring to “Engine Assembly Removal and Installation”.
2) Remove oil pan referring to “Oil Pan and Oil Pump
Strainer Removal and Installation in Section 1E”.
3) Remove cylinder head cover referring to “Cylinder Head Cover Removal and Installation”.
4) Remove timing chain cover referring to Steps 2) to 11) of “Removal” in “Tim ing Chain Cover Removal
and Installation”.
5) Remove timing chain referring to Steps 2) to 6) of “Removal” in “Timing Chain and Chain Tensioner
Removal and Installation”.
6) Remove intake and exhaust camshafts referring to Steps 3) to 8) of “Removal” in “Camshaft, Tappet and
Shim Removal and Installation”.
7) Loosen cylinder head bolts in such order as indicated in the figure by using a 12 corner socket
wrenches and remove them.
NOTE
• Don’t forget to remove bolt (M8) (1) as shown in figure.
• Never reuse cylinder head bolts once disassembled it due to plastic deformation
tightening. Be sure to use new cylinder
head bolts when installing.

8) Check all around cylinder head for any other parts required to be removed or disconnected and remove
or disconnect whatever necessary.
9) Remove exhaust manifold, if necessary referring to
“Exhaust Manifold Removal and Installation in
Section 1K”.
10) Remove cylinder head wi th intake manifold and
exhaust manifold. Use lifting device, if necessary. Installation
1) Clean mating surface of cylinder head and cylinder block. Remove oil, old gasket and dust from mating
surface.
2) Install knock pins (1) to cylinder block.
3) Install new cylinder head gasket (2) to cylinder block. “Top” or “Triangle/circle” mark provided on gasket
comes to crankshaft pulley side, facing up (toward
cylinder head side).
4) Make sure that oil jet (venturi plug) (1) is not clogged. If it is not install ed, install it as specified
torque.
Tightening torque
Venturi plug (a): 3.5 N·m (0.35 kgf-m, 3.0 lb-ft)
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Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-36
5) Install cylinder head to cylinder block.Apply engine oil to new cylinder head bolts and
tighten them gradually as follows.
a) Tighten cylinder head bolts (“1” – “10”) to 20 N ⋅m
(2.0 kgf-m, 14.5 lb-ft) according to numerical
order as shown by using a 12 corner socket
wrenches.
b) In the same manner as in Step a), tighten them to 40 N ⋅m (4.0 kgf-m, 29.0 lb-ft).
c) Turn all bolts 60 ° according to numerical order in
the figure.
d) Repeat Step c).
e) Tighten bolt “A” to specified torque.
NOTE
Be sure to tighten M8 bolt “A” after securing
the other bolts.

Tightening torque
Cylinder head bolt for M8 (a): 25 N·m (2.5
kgf-m, 18.0 lb-ft)
Cylinder head bolt for M10 (b): 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
NOTE
• If they are reused, check thread diameters of cylinder head bolt (1) for deformation
according to the follows and replace them
with new ones if thread diameter difference
exceeds limit.
• Measure each thread diameter of cylinder head bolt (1) at “A” on 83.5 mm (2.81 in.)
from seat side of flange bolt and “B” on
115 mm (4.53 in.) from seat side of flange
bolt by using a micrometer (2).
Then calculate difference in diameters (“A”
– “B”). If it exceeds limit, replace with new
one.

Cylinder head bolt diameter measurement
points
“a”: 83.5 mm (2.81 in.)
“b”: 115 mm (4.53 in.)
Cylinder head bolt diameter difference
(deformation)
Limit (“A” – “B”): 0.1 mm (0.004 in.)
6) Install camshafts, tappet and shim referring to “Camshaft, Tappet and Shim Removal and
Installation”.
7) Install timing chain referring to “Timing Chain and Chain Tensioner Remova l and Installation”.
8) Install timing chain cover referring to “Timing Chain Cover Removal and Installation”.
9) Install cylinder head cover referring to “Cylinder Head Cover Removal and Installation”.
10) Install oil pan referring to “Oil Pan and Oil Pump
Strainer Removal and Inst allation in Section 1E”.
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“A”
“a” “b” “B”

1
1
2
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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-39 Engine Mechanical:
6) Install valve to valve guide.Before installing valve to valve guide, apply engine
oil to stem seal, valve guide bore and valve stem.
7) Install valve spring and spring retainer. Each valve spring has top end (large-pitch end (1))
and bottom end (small-pitch end (2)). Be sure to
position spring in place with its bottom end (small-
pitch end) facing the bottom (valve spring seat side). 8) Using special tools (Val
ve lifter), compress valve
spring and fit two valve cotters (1) into groove in
valve stem.
NOTE
When compressing the valve spring, be
carefully to free from damage in inside face
of tappet installing hole.

Special tool
(A): 09916–14510
(B): 09916–14521
(C): 09916–84511
9) Install intake manifold referring to “Engine Assembly Removal and Installation”.
10) Install fuel injectors referring to “Fuel Injector Removal and Installati on in Section 1G”.
11) Install exhaust manifold referring to “Exhaust Manifold Removal and Inst allation in Section 1K”.
A: Valve spring retainer side
B: Valve spring seat side
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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 Engine Mechanical: 1D-44
Pistons, Piston Rings, Connecting Rods and Cylinders ComponentsS7RS0B1406029
1. Top ring 6. Connecting rod bearing cap : See “B”: Tighten15 N
⋅m (1.5 kgf-m, 11.0 lb-ft), 45 °
and 45 ° by the specified procedure.
2. 2nd ring 7. Connecting rod bearing : Apply engine oil to sliding surface of each
part.
3. Oil ring 8. Piston pin : Do not reuse.
4. Piston 9. Piston pin circlip
5. Connecting rod : See “A” 10. Connecting rod bearing cap bolt
: See “C”
“A”: Apply engine oil to sliding surface except inner surface of big end.
“B”: Point arrow mark on cap to crankshaft pulley side.
“C”: Make sure bearing cap bolt diameter when reuse it due to plastic deformation tightening. Refer to “Piston Pins and Connecti ng Rods Inspection”.
(a)1
2
3
9
4
5
6 10
7 8
9
OIL
OIL
OIL
OIL
OIL
OIL
OIL
OIL
OIL
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