2000 SUZUKI SWIFT SF310 Service Workshop Manual

“a”: Valve guide protrusion (11.5 mm)
6A1-50 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
ASSEMBLY
1) Before installing valve guide into cylinder head, ream guide hole
with special tool (11 mm reamer) to remove burrs and make it
truly round.
Special Tool
(A): 09916-34542
(B): 09916-38210
2) Install valve guide to cylinder head.
Heat cylinder head uniformly at a temperature of 80 to 100C
(176 to 212F) 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, make sure that valve guide protrudes by 11.5
mm (0.45 in.) from cylinder head.
Special Tool
(C): 09916-56011
(D): 09916-58210
NOTE:

Do not reuse valve guide once disassembled.
Install new valve guide (Oversize).

Intake and exhaust valve guides are identical.
Valve guide oversize: 0.03 mm (0.0012 in.)
Valve guide protrusion (In and Ex): 11.5 mm (0.45 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.

A: Valve spring retainer side
B: Valve spring seat side
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-51
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 ham-
mer or else. Install seal to guide only by pushing special
tool by hand. Tapping or hitting special tool may cause
damage to seal.
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 (1) end) and bottom
end (small-pitch (2) end). 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 (Valve lifter), compress valve spring and fit
two valve cotters (1) into groove in valve stem.
Special Tool
(A): 09916-14510
(B): 09916-14910
(C): 09916-84511

A: Crankshaft pulley side
B: Flywheel side
A: Camshaft pulley side
B: CMP sensor case side
6A1-52 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
9) Install rocker arms, washers, rocker arm shaft and camshaft as
previously outlined.
10) Install CMP sensor case, intake manifold and exhaust man-
ifold.
INSTALLATION
1) Remove oil gasket and oil on mating surfaces and install new
head gasket (1) as shown in figure, that is, “TOP” mark provided
on gasket comes to crankshaft pulley side, facing up (toward cyl-
inder head side).
2) Check to make sure that oil jet (venturi plug) is installed and if
it is, that it is not clogged.
When installing it, be sure to tighten to specified torque.
Tightening Torque
(a): 3.5 N
.m (0.35 kg-m, 2.5 lb-ft)
3) Apply engine oil to cylinder head bolts and tighten them gradual-
ly as follows.
a) Tighten all bolts to 35 N
.m (3.5 kg-m, 25.0 lb-ft) according to
numerical order in figure.
b) In the same manner as in a), tighten them to 55 N
.m
(5.5 kg-m, 40.0 lb-ft).
c) Loosen all bolts until tightening torque is reduced to 0 (zero)
in reverse order of tightening.
d) In the same manner as in a), tighten them to 35 N
.m
(3.5 kg-m, 25.0 lb-ft).
e) In the same manner as in a) again, tighten them to specified
torque.
Tightening Torque
(a): 68 N
.m (6.8 kg-m, 49.5 lb-ft)

ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-53
4) Reverse removal procedure for installation.
5) Adjust water pump drive belt tension by referring to “ENGINE
COOLING” section.
6) Adjust power steering pump belt tension or A / C compressor
belt tension, if equipped.
Refer to Section 0B.
7) Adjust intake and exhaust valve lashes as previously outlined.
8) Adjust accelerator cable play.
Refer to Section 6E.
9) Check to ensure that all removed parts are back in place.
Reinstall any necessary parts which have not been reinstalled.
10) Refill cooling system referring to Section 6B.
11) Connect negative cable at battery.
12) Confirm that ignition timing is within specification.
13) Verify that there is no fuel leakage, coolant leakage and ex-
haust gas leakage at each connection.

1. Top ring
2. 2nd ring
3. Oil ring
4. Piston
5. Connecting rod
6. Connecting rod bearing cap
7. Connecting rod bearing
8. Piston pin
9. Piston pin circlip
10. connecting rod bearing cap nut
: Do not reuse
: Tightening Torque
: Apply engine oil to sliding
: surface of each part.
6
10
6A1-54 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
PISTON, PISTON RINGS, CONNECTING RODS AND CYLINDERS
REMOVAL
1) Remove cylinder head from cylinder block as previously out-
lined.
2) Drain engine oil.
3) Remove oil pan and oil pump strainer as previously outlined.
4) Mark cylinder number on all pistons, connecting rods and rod
bearing caps, using silver pencil or quick drying paint.
5) Remove rod bearing caps.
6) Install guide hose (1) over threads of rod bolts. This is to prevent
damage to bearing journal and rod bolt threads when removing
connecting rod.
7) Decarbon top of cylinder bore before removing piston from cylin-
der.
8) Push piston and connecting rod assembly out through the top of
cylinder bore.

ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-55
DISASSEMBLY
1) Using piston ring expander, remove two compression rings (Top
and 2nd) and oil ring from piston.
2) Remove piston pin from connecting rod.

Ease out piston pin circlips (1), as shown.

Force piston pin out.
CLEANING
Clean carbon from piston head and ring grooves, using a suitable
tool.

“a”: 50 mm (1.96 in.)
“b”: 95 mm (3.74 in.)
“a”: 23 mm (0.91 in.)
6A1-56 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
INSPECTION
Cylinders

Inspect cylinder walls for scratches, roughness, or ridges which
indicate excessive wear. If cylinder bore is very rough or deeply
scratched, or ridged, rebore cylinder and use oversize piston.

Using a cylinder gauge, measure cylinder bore in thrust and axial
directions at two positions as shown in figure.
If any of the following conditions is noted, rebore cylinder.
1) Cylinder bore dia. exceeds limit.
2) Difference of measurements at two positions exceeds taper lim-
it.
3) Difference between thrust and axial measurements exceeds
out-of-round limit.
Cylinder bore dia. limit: 74.15 mm (2.9196 in.)
Tapper and out-of-round limit: 0.10 mm (0.0039 in.)
NOTE:
If any one of four cylinders has to be rebored, rebore all four
to the same next oversize. This is necessary for the sake of
uniformity and balance.
Pistons

Inspect piston for faults, cracks or other damaged.
Damaged or faulty piston should be replaced.

Piston diameter:
As indicated in figure, piston diameter should be measured at a
position 23 mm (0.91 in.) from piston skirt end in the direction per-
pendicular to piston pin.
Standard73.970 – 73.990 mm
(2.9122 – 2.9130 in.)
Piston
diameterOversize:
0.25 mm
(0.0098 in.)74.220 – 74.230 mm
(2.9220 – 2.9224 in.)
0.50 mm
(0.0196 in.)74.470 –74.480 mm
(2.9319 – 2.9323 in.)

“a”: 23 mm (0.91 in.)
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-57

Piston clearance:
Measure cylinder bore diameter and piston diameter to find their
difference which is piston clearance. Piston clearance should be
within specification as given below. If it is out of specification, re-
bore cylinder and use oversize piston.
Piston clearance: 0.02 – 0.04 mm (0.0008 – 0.0015 in.)
NOTE:
Cylinder bore diameters used here are measured in thrust
direction at two positions.

Ring groove clearance:
Before checking, piston grooves must be clean, dry and free of
carbon.
Fit new piston ring (1) into piston groove, and measure clearance
between ring and ring land by using thickness gauge (2).
If clearance is out of specification, replace piston.
Ring groove clearance:
Top: 0.03 – 0.07 mm (0.0012 – 0.0027 in.)
2nd: 0.02 – 0.06 mm (0.0008 – 0.0023 in.)
Piston Pin

Check piston pin, connecting rod small end bore and piston bore
for wear or damage, paying particular attention to condition of
small end bore bush. If pin, connecting rod small end bore or pis-
ton bore is badly worn or damaged, replace pin, connecting rod
or piston.

Piston pin clearance:
Check piston pin clearance in small end. Replace connecting rod
if its small end is badly worn or damaged or if measured clearance
exceeds limit.
Item
StandardLimit
Piston clearance in
small end0.003 – 0.016 mm
(0.0001 – 0.0006 in.)0.05 mm
(0.0020 in.)
Small-end bore:
19.003 – 19.011 mm (0.7482 – 0.7486 in.)
Piston pin dia.:
18.995 – 19.000 mm (0.7478 – 0.7480 in.)