Page 310 of 557
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-15
7) Disconnect the following electric lead wires and release clamp:
Ground wires (5) from intake manifold
TP sensor (3)
IAC valve (4)
Fuel injectors
EVAP canister purge valve (2)
MAP sensor (6)
EGR valve (1)
8) Disconnect the following hoses:
Brake booster hose (1) from intake manifold
Canister purge hose (3) from EVAP canister purge valve
Engine cooling water (coolant) hose (2) from IAC valve
PCV hose (4)
Breather hose from cylinder head
9) Disconnect fuel feed hose (2) from pipe (1), and disconnect fuel
return hose (3) from fuel pressure regulator.
Page 311 of 557
1. Long bolt
2. Short bolt
6A1-16 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
10) Remove intake manifold rear stiffener (1) and generator adjust
arm reinforcement (2) from intake manifold (3).
11) Remove intake manifold with throttle body from cylinder head,
and then its gasket.
INSTALLATION
Reverse removal procedure for installation noting the followings.
Use new intake manifold gasket.
When installing intake manifold, install clamps securely.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
Adjust accelerator cable play, referring to Section 6E.
Check to ensure that all removed parts are back in place.
Reinstall any necessary parts which have not been reinstalled.
Refill cooling system referring to Section 6B.
Upon completion of installation, turn ignition switch ON but en-
gine OFF and check for fuel leaks.
Finally, start engine and check for engine coolant leaks.
Page 329 of 557
1. Oil plug
6A1-34 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
4) Disconnect CMP sensor coupler from CMP sensor.
5) Remove CMP sensor case (1) from cylinder head.
Place a container or rag under CMP sensor case, for a small
amount of oil flows out during removal of case.
6) After loosening all valve adjusting screw lock nuts (2), turn ad-
justing screws (1) back all the way to allow all rocker arms (3) to
move freely.
7) Remove camshaft housing and camshaft.
NOTE:
To remove camshaft housing bolts, loosen them in such or-
der as indicated in figure, a little at a time.
8) Remove timing belt inside cover (2).
9) Remove intake rocker arm (1) with clip (2) from rocker arm shaft
(3).
NOTE:
Do not bend clip when removing intake rocker arm.
Page 331 of 557

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.
Page 333 of 557

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
Page 336 of 557
: 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.
Page 337 of 557
6A1-42 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
Ignition coil assembly
Ground wires from
intake manifold
EVAP canister purge
valve
ECT sensorInjectors, TP sensor and
IAC valve wires at the
coupler
Heated oxygen sensor 1
MAP sensor
5) Remove intake manifold rear stiffener (1) and generator adjust
arm reinforcement (2) from intake manifold.
6) Disconnect the following electric wires:
and then release above wire harnesses from clamps.
7) Disconnect the following hoses:
Brake booster hose (1)
EVAP canister purge hose (3) from purge valve
Radiator inlet hose
Heater inlet hose
IAC valve outlet (2)
8) Disconnect fuel feed (2) and return hoses (3) from fuel delivery
pipe (1).
Page 338 of 557
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.