Page 578 of 1226
Engine - 1.25L Duratec-I 6V (Sigma)ll.4L
303-OIA-I 02 Duratec-1 6V (Sigma)llm6L Duratec-1 6V (Sigma)
DISASSEMBLY
Using the special tool, remove the cylinder
head.
Discard the gasket.
39m ACAUTION:D~ not damage the coolant
pump impeller.
Remove the coolant pump.
Discard the gasket.
Discard the gasket.
41. Remove the KS.
42. Remove the the PCV cover.
40. Remove the thermostat housing.
2006.0 Fiesta iuzoos GI 54224en
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Page 581 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-1 05 Duratec-1 6V (Sigma)/l .6L
Duratec-1 6V (Sigma) 303-01 A-1 05
DISASSEMBLY AND ASSEMBLY
OF SUBASSEMBLIES
Cylinder Head(21 165 6)
' Disassembly 5. Remove the fuel supply manifold.
I. Disconnect the temperature and manifold Discard the O-ring seals.
absolute pressure (T-MAP) sensor electrical
connector.
2. Disconnect the throttle plate control motor
(DC-ISC) electrical connector.
3. Disconnect the fuel injector electrical
connectors.
6. Remove the intake manifold.
Discard the gaskets.
7. Remove the engine rear lifting eye.
8. Remove the coolant distribution housing and
1 ~~~0001735 the ignition coil (El).
4. Remove the engine wiring harness.
2006.0 Fiesta 1212006 G202085en
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Page 582 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-1 06 Duratec-I 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
303-01 A-I 06
DISASSEMBLY AND ASSEMBLY
OF SUBASSEMBLIES
Discard the gasket. Install the CMP sensor.
91 Remove the camshaft position (CMP) sensor. 3. NOTE: Install a new coolant distribution
Discard the O-ring seal. housing gasket.
Assembly
1. N0TE:A new cylinder head is supplied
without exhaust manifold studs.
Install the exhaust manifold studs if
necessary.
2. N0TE:lnstall a new camshaft position (CMP)
O-ring seal. Install
the coolant distribution housing and
the ignition coil (El).
4. Install the engine rear lifting eye.
5. N0TE:lnstall new intake manifold gaskets.
2006.0 Fiesta 1212006 G202085en
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Page 588 of 1226
303-01 A-I 12
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)/lm6L Duratec-1 6V (Sigma)
ASSEMBLY
lnstall the drain plug.
lnstall the thermostat housing.
18. Install the positive crankcase ventilation 21. Install the oil pressure switch.
(PCV) cover.
Apply adhesive to the oil pressure switch
threads.
19' ~CAUTION:T~~ knock sensor (KS) cable
must not touch the cylinder head or the
PCV cover. Position the KS cable at
approximately the
10 o'clock position.
lnstall the KS.
20. N0TE:lnstall a new thermostat housing
gasket.
22' ACAUTION:D~ not damage the coolant
pump impeller.
N0TE:lnstall a new coolant pump gasket.
lnstall the coolant pump.
23, Turn the crankshaft to approximately 25
mm before top dead center (BTDC) on
cylinder number
I.
2006.0 Fiesta 1212006 GI 54225en
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Page 589 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01A-I13 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma)
303-01 A-I 13
ASSEMBLY
24n ACAUTION:T~~ thickness of the new 25.
Install the intake manifold lower retaining
, cylinder head gasket must be the same as bolt.
I , that
of the old one (hole marked).
N0TE:lnstall a new cylinder head gasket.
N0TE:Position the cylinder head onto the two
guide sleeves.
Using the special tool, install the cylinder
head.
Tighten the cylinder head bolts in the
sequence shown in three stages.
Stage 1: 15 Nm.
Stage2: 30 Nm.
Stage 3: 90 degrees.
26. Attach the oil level indicator tube to the
intake manifold.
Attach the KS electrical connector to the oil
level indicator tube.
27. Connect the PCV hose to the PCV cover.
28. N0TE:ldentification numbers are provided
on the outer face of the camshaft bearing
caps.
2006.0 Fiesta 1212006 GI 54225en
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Page 631 of 1226

303101 B-9 Engine - 2.OL Duratec-HE (M14) 303-01 B-9
DESCRIPTION AND OPERATION
The complete engine is made of cast aluminum
which, when combined with the plastic intake
manifold, gives a very light unit.
2.OL Duratec-HE (M14) engine
Emission standard
N0TE:Due to the fine tolerance in the bearing
clearances and bearing shells, no service
operations whatsoever are permitted on the crank
assembly. In the event of damage, the complete
cylinder block and crank assembly must be
changed. European
Emissions Standard Stage
IV (Stage II I, depending
on country)
Further design features include a ladder frame
incorporating the main bearing caps which support
the crankshaft in the cylinder block, and the
deep-drawn side walls of the cylinder block which
reduce engine vibration.
The camshafts are driven by a pinned link chain
which runs very quietly and is also
maintenance-free.
Cvlinder head
Item Description
1
2
The engine management for the 2.OL Duratec-HE
(M14) is provided by a Visteon system.
Item Description
Exhaust camshaft
Camshaft bearing cap
', This engine management systems controls the ' , sequential multipoint fuel injection (SFI) and the
I 1 (Enngine code I
3
4
wl~n~ine serial number I
Cam to identify cylinder No. 1
Intake camshaft
ele~tronically controlled coolant-cooled exhaust The design and the valve arrangement in the gas recirculation (EGR) valve.
cylinder head is similar to the head of the Zetec-SE
engines.
Enaine codes
5
The engine code and the engine serial number are
stamped on the right-hand side of the cylinder block
on the flywheel side of the engine. Camshaft sprockets
Cvlinder
head gasket
Item Description
I 1 I Cylinder head gasket I
1 2 1 Locating dowels 1
A four-layer laminated steel cylinder head gasket
is used.
The cylinder head gasket and cylinder head are
located with two locating dowels.
2006.0 Fiesta 1212006 G461395en
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Page 646 of 1226
303-01 B-24 Engine - 2.OL Duratec-HE (M14) 303-01 B-24
IN-VEHICLE REPAIR
23. Disconnect the brake booster vacuum line
26. Disconnect the positive crankshaft
from the intake manifold.
ventilation
(PCV) hose from the intake
manifold.
24. Remove the oil level indicator and oil level
indicator tube.
27. Remove the intake manifold.
Installation
1. N0TE:lnstall new gaskets if necessary.
To install, reverse the removal procedure.
25. Remove the intake manifold retaining bolts
(engine shown removed for clarity).
Detach the intake manifold from the cylinder
head.
2006.0 Fiesta 12/2006 G451284en
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Page 692 of 1226
303-01 B-70 Engine - 2.OL Duratec-HE (M14) 303-01 B-70
IN-VEHICLE REPAIR
9. Disconnect the engine coolant temperature 12. Remove the exhaust manifold upper heat
(ECT) sensor electrical connector.
shield (engine shown removed for clarity).
('
10. Remove the power steering pump return 13. Remove the exhaust manifold lower heat
line support bracket.
shield (engine shown removed for clarity).
11. Remove the generator upper retaining bolt. 14. Remove the exhaust manifold retaining
nuts (engine shown removed for clarity).
Detach the exhaust manifold from the
cylinder head and position it to one side.
Discard the gasket and nuts.
15. CAUTIONS: c
n~ee~ the camshaft bearing caps and the
camshafts in order for installation.
2006.0 Fiesta 12/2006 G451308en
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