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Engine - I .25L Duratec-1 6V (Sigma)llm4L
303-01 A-28 Duratec-1 6V (Sigma)llm6L Duratec-1 6V (Sigma) 303-01 A-28
IN-VEHICLE REPAIR
Valve Cover(21 141 0)
Materials 4. Remove the valve cover. (. ,
Name Specification
I Silicone grease IESE-MlC171-AA I
Removal
A WARNING:Do not smoke or carry lighted
tobacco or open flame of any type when
working on or near any fuel related
components. Highly flammable mixtures
are always present and may ignite. Failure
to follow these instructions may result
in
personal injury.
1. Disconnect the battery ground cable. For
additional information, refer to
Section
414-01 [Battery, Mounting and
Cables].
2. Remove the air cleaner. For additional
information, refer to Section
303-12 [Intake
Air Distribution and Filtering].
3. Disconnect the spark plug electrical
connectors and detach the wires from the
valve cover.
Installation
1. N0TE:Check the valve cover gasket for
damage and install a new valve cover gasket
if necessary.
N0TE:lnstall the stud bolts to positions 5 and 6.
Install the valve cover.
Tighten the bolts in the sequence shown in
three stages.
Stage 1: Tighten bolt 1 by 3 to 4 turns.
Stage 2: Tigthen bolts 1 through 13 to 3 Nm.
Stage 3: Tigthen bolts 1 through 13 to 9 Nm.
2m ACAUTION:~~~ a suitable blunt object to
avoid damage to the spark plug connector
gasket. Coat the inside of the spark plug
connector with silicone grease to depth of
5-10 mm.
- - --
2006.0 Fiesta 1212006 GI 83729en
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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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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 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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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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Engine - 1.25L Duratec-I 6V (Sigma)ll.4L
303-01 A-1 18 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-01 A-I 18
ASSEMBLY
Carefully turn the crankshaft against the
special tool.
55. Check the valve timing.
If necessary loosen the camshaft pulleys and
correct the camshaft alignment.
56. Remove the special tools.
57. Install the blanking plug.
58. Check the valve clearances, adjust if
necessary.
f:
For additional information, refer to: Valve (.
Clearance Adjustment (303-01 Engine -
1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V
(Sigma), General Procedures).
59. Using the
special tool, install the spark
plugs.
Apply grease to the spark plug threads.
60. N0TE:lnstall the stud bolts to positions 5
and 6.
Install the valve cover. (
Tighten the bolts in the sequence shown in
three stages.
Stage I : Tighten bolt 1 by 3 to 4 turns.
Stage
2: Tighten bolts I through 13 to 3 Nm.
Stage
3: Tighten bolts 1 through 13 to 9 Nm.
'Irn CAUTION: Use a suitable blunt object
to avoid damage to the spark
plug
connector gasket. Coat the inside of the
spark
plug connector with silicone grease
to a depth of 5-10 mm. C
2006.0 Fiesta 1212006 GI 54225en
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303-01 B-I 8 Engine - 2.OL Duratec-HE (M14) 303-01 B-18
GENERAL PROCEDURES
3m &AUTION:O~I~ rotate the crankshaft in 19.
Apply a small bead of sealant to the areas
the normal direction of rotation. as
shown.
/ '
Rotate the crankshaft until each piston is at
TDC and measure the valve clearances.
14.
N0TE:Only carry out the following steps
when the valve
clearance(s) require
adjustment.
For additional information, refer to:
Specifications
(303-01 Engine - 2.OL
Duratec-HE (M14), Specifications).
Remove the camshafts.
For additional information, refer to:
Camshafts (303-01 Engine
- 2.OL
Duratec-HE (M14), In-vehicle Repair).
15.
N0TE:The number on the valve tappet is
the valve tappet thickness, however only
the decimal places are marked (for example
.650 = 3.650).
Determine the valve tappet thickness
required:
1. Remove the valve tappet and read the
thickness from the underside.
2. Valve tappet thickness required
= thickness
of currently installed valve tappet
+ the
measured valve clearance
- the required
valve clearance.
For additional information, refer to:
Specifications (303-01 Engine
- 2.OL
Duratec-HE (M14), Specifications).
3. Install the correct valve tappet.
16. N0TE:Do not install the valve cover at this
stage.
Install the camshafts.
For additional information, refer to:
Camshafts (303-01 Engine
- 2.OL
Duratec-HE (M14), ln-vehicle Repair).
17. ~CAUTION:O~I~ rotate the crankshaft in
the normal direction of rotation.
Rotate the crankshaft until each piston is at
TDC and measure the valve clearances.
18. Repeat this procedure as necessary until
all valve clearances are within the specified
tolerance. 20.
N0TE:lnstall a
new valve cover gasket if
necessary.
Install the valve cover.
Tighten the bolts in the sequence shown.
21. Using the special tool, install the spark
plugs.
2006.0 Fiesta 1212006 G451279en
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