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4) Remove air cleaner outlet No.1 (1) and No.2 (2) hoses and
breather hose (3).
5) Remove intake manifold bracket (1) with main harness from
intake manifold.
6) Disconnect the following electric lead wires:
IAC valve (2)
TP sensor (3)
EVAP canister purge valve (4)
MAP sensor (5)
Fuel injector wire harness at couplers (6)
Ground terminal (7) from intake manifold
7) Disconnect accelerator cable (1) from throttle body.
8) Disconnect the following hoses:
Brake booster hose (2) from intake manifold
PCV hose (3) from PCV valve
Fuel pressure regulator vacuum hose (4) from intake mani-
fold
Canister purge hose from EVAP canister purge valve
Water hoses from throttle body
Vacuum hose (5) (to check valve) from throttle body
Fuel feed hose and return hose from each pipe
9) Remove fuel delivery pipe with fuel injectors from cylinder
head and intake manifold.
10) Remove canister purge hose bracket.
11) Disconnect EGR pipe from EGR valve.
12) Remove intake manifold stiffener (1).
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13) Remove intake manifold (1) with throttle body (2) and EGR
pipe (3) from cylinder head (4), and then its gasket.
INSTALLATION
Reverse removal procedure for installation noting the followings.
Use new intake manifold gasket and EGR pipe gasket.
Tighten long bolt (1), short bolt (3) and nuts (2) to specified
torque.
Tightening torque
Intake manifold bolts and nuts
(a) : 25 N·m (2.5 kg-m, 18.0 lb-ft)
Check to ensure that all removed parts are back in place.
Reinstall any necessary parts which have not been rein-
stalled.
Adjust accelerator cable play referring to “Accelerator Cable
Adjustment” in Section 6E.
Refill cooling system referring to “Cooling System Flush and
Refill” in Section 6B.
Upon completion of installation, turn ignition switch ON but
engine OFF and check for fuel leaks.
Finally, start engine and check for engine coolant leaks.
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REMOVAL
1) Relieve fuel pressure referring to “Fuel Pressure Relief Pro-
cedure” in Section 6.
2) Disconnect negative cable at battery.
3) Drain engine oil.
4) Drain coolant by loosening drain plug (1).
5) Remove air cleaner outlet No.1 and No.2 hoses and
breather hose.
6) Remove intake manifold bracket (1) with main harness from
intake manifold.
7) Disconnect the following electric lead wires:
EGR valve (if equipped)
IAC valve (2)
TP sensor (3)
MAP sensor (4)
CMP sensor
ECT sensor
EVAP canister purge valve (5)
Injectors (6)
Ignition coils
Heated oxygen sensor
Ground terminal (7) from intake manifold
Each wire harness clamps
8) Remove heated oxygen sensor bracket from cylinder head
and detach heated oxygen sensor coupler from its bracket. WARNING:
To help avoid danger of being burned, do not remove
drain plug (1) and radiator cap while engine and radiator
are still hot. Scalding fluid and steam can be blown out
under pressure if plug and cap are taken off too soon.
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Downloaded from www.Manualslib.com manuals search engine 6A1-50 ENGINE MECHANICAL (M13 ENGINE)
9) Disconnect accelerator cable (1) from throttle body.
10) Disconnect the following hoses:
Brake booster hose (2) from intake manifold
Canister purge hose (3) from EVAP canister purge valve
Fuel feed and return hoses (4) from each pipe
Water hose from thermostat case (5)
Heater inlet hose from its pipe
Vacuum hose (to check valve) (6)
11) Remove canister purge hose bracket from intake manifold.
12) Remove intake manifold stiffener (1).
13) Remove oil pan referring to “Oil Pan and Oil Pump Strainer”
in this section.
14) Remove cylinder head cover referring to “Cylinder Head
Cover” in this section.
15) Remove timing chain cover referring to “Timing Chain Cover”
in this section.
16) Remove timing chain referring to “Timing Chain and Chain
Tensioner” in this section.
17) Remove intake and exhaust camshafts referring to “Cam-
shaft, Tappet and Shim” in this section.
18) Disconnect exhaust pipe (1) from exhaust manifold.
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19) Remove exhaust manifold stiffener (1).
20) Loosen cylinder head bolts in such order as indicated in fig-
ure by using a 12 corner socket wrenches and remove them.
21) Check all around cylinder head for any other parts required
to be removed or disconnected and remove or disconnect
whatever necessary.
22) Remove cylinder head with intake manifold and exhaust
manifold. Use lifting device, if necessary.
NOTE:
Don’t forget to remove bolt (M8) (1) as shown in figure.
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DISASSEMBLY
1) For ease in servicing cylinder head, remove intake manifold,
injectors and exhaust manifold from cylinder head.
2) Using special tools (Valve lifter), compress valve spring and
then remove valve cotters (1) by using special tool (For-
ceps).
Special tool
(A) : 09916-14510
(B) : 09916-14521
(C) : 09916-84511
3) Release special tools and remove spring retainer and valve
spring.
4) Remove valve from combustion chamber side.
5) Remove valve stem seal (1) from valve guide and then valve
spring seat (2).
6) Using special tool (valve guide remover), drive valve guide
out from combustion chamber side to valve spring side.
Special tool
(A) : 09916-44910
7) Place disassembled parts except valve stem seal and valve
guide in order so that they can be installed in their original
position.
NOTE:
Do not reuse seal once disassembled. Be sure to use
new seal when assembling.
NOTE:
Do not reuse valve guide once disassembled. Be sure to
use new valve guide (Oversize) when assembling.
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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 2 locations. If distortion limit,
given below, 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.
Limit of distortion for surface of cylinder head piston side
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.
Limit of distortion for surface of cylinder head intake and
exhaust manifolds sides
0.05 mm (0.002 in.)
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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 bot-
tom 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 (Valve lifter), compress valve spring and
fit two valve cotters (1) into groove in valve stem.
Special tool
(A) : 09916-14510
(B) : 09916-14521
(C) : 09916-84511
9) Install intake manifold, injectors and exhaust manifold to cyl-
inder head.
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”
mark provided on gasket comes to crankshaft pulley side,
facing up (toward cylinder head side).
A : Valve spring retainer side
B : Valve spring seat side
NOTE:
When compressing the valve spring, do not damage
inside face of tappet installing hole.