Page 530 of 1226

Engine - I .25L Duratec-1 6V (Sigma)llI4L
303-01 A-54 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma)
303-01 A-54
IN-VEHICLE REPAIR
Cylinder Head(21 163 0)
1 I Socket, Cylinder Head Bolts I
Discard the gasket and the nuts. (
Removerllnstaller, Hose
Clamp
303-397 (24-003)
I 24003 1 1 5. Raise and support the vehicle.
Removal
I I 1 For additional information, refer to: Lifting
(100-02 Jacking and Lifting, Description
1. Release the fuel system pressure.
Materials
For
additional information, refer to: Fuel
System Pressure Release (31 0-00 Fuel
System - General Information, General
Procedures). and
Operation).
2. Drain the
cooling system.
For
additional information, refer to: Cooling
System Draining, Filling and Bleeding
(303-03 Engine Cooling - 1.4L
Duratorq-TDCi (DV) Diesel, General 7. Remove the exhaust manifold lower heat
Procedures). shield left-hand retaining bolts.
3. Remove the camshaft.
Name
Specification
6. Using a suitable splint or wrap support the
For
additional information, refer to:
Camshafts
(303-01 Engine - 1.25L
Duratec-1 6V (Sigma)ll.4L Duratec-1 6V
(Sigma)ll.GL Duratec-1 6V (Sigma),
In-vehicle Repair).
Engine oil I WSS-M2C912-A1
4. Detach the exhaust flexible pipe from the
catalytic converter. exhaust
flexible pipe.
8. Remove the exhaust manifold lower heat
shield right-hand retaining bolts.
2006.0 Fiesta 1212006 GI 83740en
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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 539 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-63 Duratec-1 6V (Sigma)/l.6L Duratec-1 6V (Sigma) 303-01 A-63
IN-VEHICLE REPAIR
23. Connect the brake booster vacuum line to 27. Install the
exhaust manifold lower heat
the intake manifold. shield
left-hand retaining bolts.
24. Raise and support the vehicle. 28.
N0TE:lnstall a
new flexible pipe gasket and
For
additional information, refer to: Lifting new
nuts.
(1 00-02 Jacking and Lifting, Description Attach the flexible pipe to the catalytic
and Operation). converter
25.
Install the intake manifold retaining bolt.
29. Remove the exhaust flexible pipe support.
26. Position the exhaust
manifold lower heat . 30, Install the camshaft.
shield and install the right-hand retaining
For additional information, refer to:
bolts. Camshafts (303-01 Engine
- 1.25L
Duratec-1 6V (Sigma)ll.4L Duratec-1 6V
(Sigma)ll.GL Duratec-1 6V (Sigma),
In-vehicle Repair).
31.
N0TE:lnstall a new oil filter.
Change the engine oil.
32. Fill and bleed the cooling system.
For
additional information, refer to: Cooling
System Draining, Filling and Bleeding
(303-03 Engine Cooling - 1.4L
Duratorq-TDCi (DV) Diesel, General
Procedures).
2006.0 Fiesta 1212006 GI 83740en
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Page 540 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)lla4L
303-01 A-64 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-01 A-64
IN-VEHICLE REPAIR
Oil Pan(21 154 0)
Special Tool(s)
Adapter for 205-047
303-633 (2
1 -227)
1501 1
General Equipment
Slide Hammer
205-047 (1 5-0 1 1 )
I Five M8 x 20 mm studs I
Materials
Name
S~ecification
3m CAUTION:^^ order to prevent damage to
the sealing surfaces, only use the designated
special tool to remove the oil pan. Do not
use a chisel or a screwdriver for removal.
N0TE:Tighten the lock nut against the oil pan and
use several taps to release the oil pan from the
cylinder block.
Using the special tool, remove the oil pan.
Installation
1. CAUTIONS:
n~he oil pump gasket projects over the
cylinder block sealing surface and must not
Removal be damaged.
I. Raise and support the vehicle. For additional ADO not damage the rubber sealing surface
information, refer to Section 100-02 [Jacking of
the crankshaft rear oil seal carrier.
and Lifting].
I Using Loctite 7070, clean the engine cylinder
2. Drain the engine and remove the oil pan block and
oil pan mating faces.
retaining bolts.
1. Remove the oil drain plug. 2m ~CAUTION:T~~ crankcase may be
damaged
if sealant enters the blind holes. 2. Remove the oil pan retaining bolts.
I I Install five M8 x 20 mm studs into the blind
holes where shown.
2006.0 Fiesta 1212006 GI 83741 en
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Engine - 1.25L Duratec-1 6V (Sigma)llm4L
303-01 A-66 Duratec-1 6V (Sigma)/l.GL Duratec-1 6V (Sigma) 303-01 A-66
IN-VEHICLE REPAIR
Oil Pump(21 714 0)
Special Tool(s)
Removal
1. Remove the timing belt.
For additional information, refer to Timing
Belt in this section.
2. Remove the crankshaft timing belt pulley.
3. Detach the air conditioning (AIC) compressor
from the cylinder block and position
it to one
side.
4. Remove the oil pan.
For additional information, refer to Oil Pan
in this section.
5. Detach the oil pick-up tube from the oil pump
and remove the oil pump (engine shown
removed for clarity).
Discard the gaskets.
Remove and discard the crankshaft front oil
seal.
Installation
1. N0TE:lnstall a new oil pump gasket.
Install the oil pump (engine shown removed
for clarity).
2. N0TE:lnstall a new oil pump intake pipe
gasket.
2006.0 Fiesta 1212006 GI 83742en
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Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-76 Duratec-1 6V (Sigma)lll6L Duratec-1 6V (Sigma) 303-01 A-76
REMOVAL
Support the exhaust flexible pipe with a
suitable support wrap or suitable splint. 43.
Detach the power steering line support
bracket from the engine block.
/' -
40. Detach the exhaust flexible pipe from the
44. Disconnect the power steering line from
catalytic converter. the steering pump.
Discard the nuts and the gasket.
Allow the fluid to drain into a suitable
container.
41. Remove the accessory drive belt.
For additional information, refer to: 45.
Using the special tool, detach the power
Accessory Drive Belt
- I .4L Duratec-16V steering line from the power steering pump.
(Sigma)ll.GL Duratec-1 6V (Sigma), Allow the fluid to drain into a suitable
Vehicles With: Air Conditioning (303-05 container.
Accessory Drive, Removal and
Installation).
42. Detach the
AIC compressor from the
cylinder block and position
it to one side.
2006.0 Fiesta 1212006 GII 31 63en
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Page 565 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-89 Duratec-1 6V (Sigma)ll.GL Duratec-1 6V (Sigma) 303-01 A-89
REMOVAL
44m ACAUTION:~~~~ bending of the exhaust Vehicles with air conditioning
I flexible pipe may cause damage resulting 47.
Disconnect the air conditioning (NC)
, in failure. low-pressure cutoff switch electrical
Support the exhaust
flexible pipe with a connector.
suitable support
wrap or suitable splint.
48. Disconnect the NC compressor clutch
45. Detach the exhaust flexible pipe from the electrical connector.
catalytic converter.
Discard the nuts and the gasket.
46. Remove the accessory drive belt.
For additional information, refer to:
Accessory Drive
Belt - I .4L Duratec-I 6V
(Sigma)ll .6L Duratec-1 6V (Sigma),
Vehicles With: Air Conditioning (303-05
Accessory Drive, Removal and
Installation)
I Accessory Drive Belt - I .4L Duratec-I 6V
(Sigma)ll .6L Duratec-1 6V (Sigma),
Vehicles Without: Air Conditioning
(303-05 Accessory Drive,
Removal and
Installation).
49. Disconnect the NC high-pressure cutoff
switch
electrical connector.
2006.0 Fiesta 1212006 G380458en
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