2000 SUZUKI SWIFT camshaft

6A1-36 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
Rocker Arm-to-Rocker Arm Shaft Clearance
Using a micrometer and a bore gauge, measure rocker shaft dia.
and rocker arm l.D.
Difference between two readings is arm-to-shaft clearance on
which a limit is specified.
If limit is exceeded, replace shaft or arm, or both.
Item
StandardLimit
Rocker arm l.D.15.996 – 16.014 mm
(0.629 – 0.630 in.)———
Rocker arm shaft dia.15.969 – 15.984 mm
(0.6287 – 0.6293 in.)———
Arm-to-shaft clearance0.012 – 0.045 mm
(0.0005 – 0.0018 in.)0.09 mm
(0.0035 in.)
Cam Wear
Using a micrometer, measured height of cam. If measured height
is below limit, replace camshaft.
Cam height
StandardLimit
Intake cam36.184 – 36.344 mm
(1.4246 – 1.4309 in.)36.084 mm
(1.4206 in.)
Exhaust cam35.900 – 36.060 mm
(1.4134 – 1.4197 in.)35.800 mm
(1.4094 in.)
Camshaft Runout
Hold camshaft between two “V” blocks, and measure runout by us-
ing a dial gauge.
If runout exceeds the limit, replace camshaft.
Runout limit: 0.10 mm (0.0039 in.)
Camshaft Journal Wear
Check camshaft journals and camshaft housings for pitting,
scratches, wear or damage.
If any malcondition is found, replace camshaft or cylinder head with
housing. Never replace cylinder head without replacing housing.

ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-37
Check clearance by using gaging plastic.
The procedure is as follows.
1) Clean housing and camshaft journals.
2) Install camshaft to cylinder head.
3) Place a piece of gaging plastic the full width of journal of cam-
shaft (parallel to camshaft).
4) Install camshaft housing referring to “INSTALLATION” of the fol-
lowing page.
5) Tighten camshaft housing bolts in such order as indicated in fig-
ure a little at a time till they are tightened to specified torque.
Tightening Torque
(a): 11 N
.m (1.1kg-m, 8.0 lb-ft)
NOTE:
Do not rotate camshaft while gaging plastic is installed.
6) Remove housing and using scale (2) on gaging plastic (1) enve-
lope, measure gaging plastic width at its widest point.
StandardLimit
Journal
clearance0.040 – 0.082 mm
(0.0016 – 0.0032 in.)0.12 mm
(0.0047 in.)
If measured camshaft journal clearance exceeds limit, measure
journal (housing) bore and outside diameter of camshaft journal.
Replace camshaft or cylinder head assembly whichever the dif-
ference from specification is greater.
Item
Standard
Camshaft Journal bore dia.28.000 – 28.021 mm
(1.1024 – 1.1031 in.)
Camshaft journal O.D.27.939 – 27.960 mm
(1.1000 – 1.1008 in.)

A: Timing belt side
B: Flywheel side
6A1-38 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
INSTALLATION
1) Apply engine oil to rocker arm shaft and rocker arms.
2) Check O-ring for damage or deterioration. Install O-ring to rock-
er arm shaft.
3) Install rocker arm shaft (3) with shaft bolt holes (4) facing up,
rocker arm (exhaust side) (2) and rocker arm spring (1).
4) Install rocker arm shaft bolts and tighten them to specified
torque.
Tightening Torque
(a): 11 N
.m (1.1 kg-m, 8.0 lb-ft)
5) Fill small amount of engine oil into arm pivot holding part (3) of
rocker arm shaft. Install rocker arm (intake side) (1) with clips (2)
to rocker arm shaft.
6) Apply engine oil to cams and journals on camshaft and put cam-
shaft on cylinder head. Install camshaft housing to camshaft and
cylinder head.

Apply engine oil to sliding surface of each housing against
camshaft journal.

Apply sealant to mating surface of No.6 housing which will
mate with cylinder head.
“A” Sealant: 99000-31110

ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-39

Indicates position from timing
belt side. Install in numerical
order starting from timing belt
side.

Indicates direction of housing.
Install so that arrow is directed
toward timing belt side.

Embossed marks are provided on each camshaft housing, in-
dicating position and direction for installation.
Install housing as indicated by these marks.

As camshaft housing No. 1 retains camshaft in proper position
as to thrust direction, make sure to first fit No. 1 housing to No.
1 journal of camshaft securely.

After applying engine oil to housing bolts, tighten them tempo-
rarily first. Then tighten them by the following sequence as in-
dicated in figure.
Tighten a little at a time and evenly among bolts and repeat
tightening sequence three to four times before they are tight-
ened to specified torque.
Tightening Torque
(a): 11 N
.m (1.1 kg-m, 8.0 lb-ft)
7) Install camshaft oil seal (1).
After applying engine oil to oil seal lip, press-fit camshaft oil seal
till oil seal surface becomes flush with housing surface.
8) Install timing belt inside cover.
9) Install camshaft timing belt pulley (1) to camshaft while fitting pin
(2) on camshaft into slot at “E” mark.

: Do not reuse
1. Valve cotters
2. Valve spring retainer
3. Valve spring:
be sure to position
spring in place with its
bottom end (small-pitch
end) facing the bottom
(valve spring seat side).
4. Valve stem seal
5. Valve spring seat
6. Exhaust valve
7. Intake valve
8. Cylinder head bolt
9. Camshaft housing bolt10. Camshaft housing:
Apply sealant to mating surface of
No.1 and No.6 housings.
11. Valve guide
12. Oil venturi plug
13. Cylinder head gasket:
“TOP” mark provided on gasket comes to
crankshaft pulley side, facing up
(toward cylinder head side).
14. Dowel pin
: Tightening Torque
: Apply engine oil to sliding
: surfaces of each part.
3.5 N.m (0.35 kg-m)
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-41
VALVES AND CYLINDER HEAD
REMOVAL
1) Relieve fuel pressure according to procedure described in Sec-
tion 6.
2) Disconnect negative cable at battery.
3) Drain cooling system.
4) Remove air cleaner outlet hose as previously outlined.

3
2. Breather hose
3. PCV valve4. High-tension cords
5. Ignition coil assembly
6. Ignition coil coupler
A: Camshaft pulley side
B: CMP sensor case side
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-43
9) Remove cylinder head cover (1) as previously outlined.
Loosen all valve lash adjusting screws fully.
10) Remove timing belt and camshaft as previously outlined.
11) Disconnect exhaust pipe from exhaust manifold and remove
exhaust manifold stiffener (if equipped).
12) Loosen cylinder head bolts in such order as indicated in figure
and remove them.
13) Check all around cylinder head for any other parts required to
be removed or disconnected and remove or disconnect what-
ever necessary.
14) Remove cylinder head with intake manifold, exhaust manifold
CMP sensor case, using lifting device if necessary.

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) 6A1-79
8) Install pistons and connecting rods as previously outlined.
9) Install oil pump strainer and oil pan as previously outlined.
10) Install cylinder head assembly to cylinder block as previously
outlined.
11) Install camshaft, crankshaft timing belt pulley, timing belt,
crankshaft pulley, water pump pulley, etc., as previously out-
lined.
12) Install clutch to flywheel (for M / T vehicle). For clutch installa-
tion, refer to “CLUTCH” section.
13) Install engine mountings and brackets.
Refer to tightening torque for INSTALLATION of “ENGINE AS-
SEMBLY” in this section.
14) Install engine with transmission to vehicle as previously out-
lined.