Page 534 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)llm4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
IN-VEHICLE REPAIR
27. Remove the exhaust manifold upper heat
shield 30.
Detach the oil level indicator tube from the
intake manifold.
f
28. Detach the exhaust manifold and position
31. CAUTIONS:
it to one side. A~he cylinder head must have cooled to
Discard the nuts and the exhaust manifold below 30°C before removal.
gasket.
A~osition the cylinder head on a soft
surface.
A~emove the cylinder head bolts in the
sequence shown.
Using the special tool, remove the cylinder
-
head bolts.
Discard the cylinder head gasket.
29. Remove the timing belt rear cover (engine
shown removed for clarity).
2006.0 Fiesta 1212006 GI 83740en
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Page 535 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)llI4L
303-01 A-59 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-01 A-59
IN-VEHICLE REPAIR
installation 2. Attach the oil level indicator tube to the
intake manifold.
! ACAUTION:T~~ thickness of the new
cylinder head gasket must be the same as
that of the old one (hole marked).
N0TE:lnstall a new cylinder head gasket.
N0TE:Position the cylinder head into the two guide
sleeves.
Using the special tool, install the cylinder
head.
Tighten the cylinder head bolts in the
sequence shown in three stages.
Stagel: 15Nm.
Stage 2: 30 Nm.
Stage 3: 90 degrees. 3. Install the timing belt rear cover (engine
shown removed for clarity).
4. N0TE:lnstall a new exhaust manifold gasket
and new exhaust manifold retaining nuts.
N0TE:Do not fully tighten the nuts and bolt at this
stage.
Install the exhaust manifold.
5. Tighten the exhaust manifold upper retaining
nuts and bolt in the sequence shown in two
stages.
2006.0 Fiesta 1212006 GI 83740en
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Page 577 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)llI4L
Duratec-1 6V (Sigma)lI.GL Duratec-1 6V (Sigma) 303-01A-101
DISASSEMBLY
32. Remove the crankshaft timing belt pulley. 35. Disconnect the positive crankcase
ventilation (PCV) hose from the PCV cover.
33. Remove the timing belt rear cover.
34m ACAUTION: ~ee~ the camshaft bearing
caps and the camshafts in order for
installation.
36. Detach the oil level indicator and tube from
the intake manifold.
Detach the knock sensor (KS) electrical
connector from the oil level indicator tube.
Remove the camshafts. 37. Remove the intake manifold lower bolt.
Slacken each camshaft bearing cap retaining
bolt in the sequence shown by one turn until
the camshaft is released.
Remove the camshaft bearing caps.
Remove and discard the camshaft seals.
38.
CAUTIONS:
A~~ace the cylinder head on a suitable
soft surface.
A~emove the cylinder head bolts in the
sequence shown.
2006.0 Fiesta 1212006 G 1 54224en
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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 625 of 1226

Engine - 2.OL Duratec-HE (M14)
SPECIFICATIONS
Engine Data
Description
I Engine code I N4JA I N4JB I
IEmission level I Stage III I Stage IV I
I Firing order I 1 -3-4-2 I 1 -3-4-2 I
1 Bore I 87.5 mm I 87.5 mm I
1 Stroke I 83.1 mm I 83.1 mm I
I Power output 6000 rpm 1 110 kW (150 PS) I 110 kW (1 50 PS) I
Cubic capacity
Compression ratio
I Maximum torque at 4500 rpm I 190 Nm I 190 Nm I
Maximum engine speed
(intermittent) 1998
cm3
10.8
: I
7000 rprn 1998
cm3
10.8
: 1
7000 rprn
Maximum engine speed
(continous) 6500
rprn 6500 rprn
I Idle speed I 700 rpm I 700 rpm I
I Number of main bearings I 5 I 5 I
!
Engine Oil
I SAE 1 OW-40 I-20°C to over +40°C I Ford Formula XR+ I ACEA A3lB3 I
Camshaft drive
Maximum oil consumption
Viscosity
/ambient temperature
Recommended engine oil
~40%%0w -20°C to over +40°C I Ford Formula S I ACEA A3lB3 I
SAE 5W-30 /below -20°C to over +40°C
I If other types of engine oil are used, these must conform at least to the respective API SHlEC viscosity class.
Chain
0.5111 000 km
- Type
Lubricants, Fluids, Sealers and Adhesives Chain
0.5111 000 km
Specification
Alternative engine oils (for top-up only) Ford Formula
E
I Item I Specification I
WSS-M2C913-B
I Oil pressure switch and engine front cover blanking plug adhesive I WSK-M2G349-A7 I
Silicone sealant, oil pan contact surface to crankshaft rear seal retainer, oil
pan to
cylinder block, oil pan to engine front cover, engine front cover to
cylinder blockloil pan
ISilicohe grease I ESE-MlC171-AA I
WSE-M4G323-A4
' Oil svstem
I Description I bar I
2006.0 Fiesta 1212006 G451278en
- -
Pressure relief valve opening pressure 5
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Page 628 of 1226

,303-01 B-6 Engine - 2.OL Duratec-HE (M14) 303-01 B-6
SPECIFICATIONS
I Description I Nm' I Ib-ft I Ib-in I
Evaporative emission (EVAP) valve retaining
bracket retaining nut and bolt
Valve cover retaining bolts
I 10 I - I 89 I
Cylinder block blanking plug
Coolant pump pulley retaining bolts
Coolant pump retaining bolts
Oil level indicator and oil level indicator tube upper
retaining bolt
Oil level indicator and oil level indicator tube lower
retaining bolt 20
25
10
Oil pressure switch I 15 I 11 I - I
I Oil pan retaining bolts
15
18
-
-
-
89
I Crankshaft rear seal carrier retaining bolts I 10 I - I 89 I
Oil drain plug
Oil cooler to oil filter adaptor retaining bolt
I Flywheel retaining bolts I a) I - I - I
28
34
I Knock sensor retaining bolt I 20 I 15 I - I
Oil filter adaptor retaining bolts
Positive crankcase ventilation housing retaining
bolts
I Thermostat housing retaining bolts I 10 I - I 89 I
21
25
I Oil pump retaining bolts I a) I - I - I
-
-
25
10
I Oil pump sprocket retaining bolt I 25 I 18 I - I
18
-
-
89
Oil pump chain guide retaining bolts
Oil pump chain tensioner retaining bolt
I Crankshaft position sensor retaining bolts I 7 I - I 62 I
Timing chain guide retaining bolts
Timing chain tensioner retaining bolts
I Accessory drive belt idler pulley retaining bolt I 25 I 18 I - I
10
10
I Intake manifold retaining bolts I 18 I 13 I - I
10
10
I Transaxle left-hand retaining bolts I 44 I 32 I - I
-
-
I Transaxle right-hand retaining bolts I 44 I 32 I - I
89
89
-
-
89
89
Transaxle lower retaining bolts
Halfshaft center bearing carrier retaining bolts
I Lower arm ball joint retaining bolt I 48 I 35 I - I
Intermediate shaft bearing cap retaining nuts
2006.0 Fiesta 1212006 G451278en
40
48
25 30
35 -
-
18 -
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Page 643 of 1226

303-01 B-21 Engine - 2.OL Duratec-HE (M14) 303-01 B-21
IN-VEHICLE REPAIR
Intake Manifold(21 183 0)
Removal
1. Disconnect the battery.
For additional information, refer to: Battery
Disconnect (414-01 Battery, Mounting and
Cables, General Procedures).
2. Remove the air cleaner.
For additional information, refer to: Air
Cleaner
- 2.OL Duratec-HE (M14) (303-12
lntake Air Distribution and Filtering,
Removal and Installation).
3. Remove the right-hand headlamp.
6. Disconnect the generator electrical
connectors.
For additional information, refer to:
Headlamp Assembly (41 7-01 Exterior
Lighting, Removal and Installation). 7.
Remove the intake manifold lower retaining
4. Raise and support the vehicle. For additional bolt.
information, refer to: (I
00-02 Jacking and
Lifting)
Jacking (Description and Operation),
Lifting (Description and Operation).
( 5. Disconnect the crankshaft position (CKP)
sensor electrical connector.
8. Remove the oil level indicator tube lower
retaining bolt.
2006.0 Fiesta 1212006 G451284en
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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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