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
procarmanuals.com
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 579 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)llm4L
303-01 A-I 03 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-01A-I 03
DISASSEMBLY
43. Remove the oil pan retaining bolts. 46. Remove the oil pump.
Discard the gasket.
Discard the crankshaft front seal.
44m ACAUTION:~~ order to prevent damage
to the sealing surfaces, only use the
designated special tool to remove the oil
Vehicles with manual transaxle
PanmDonotuseachiselorscrewdriverfor 47. Removetheclutchdiscandpressureplate.
removal. For additional information, refer to: Clutch
N0TE:Tighten the lock nut against the oil pan and Disc and Pressure Plate (308-01 Clutch,
use several taps to release the oil pan from the Removal and Installation).
cylinder block. 48. Using the special tool, remove the flywheel.
Using the special tools, remove the oil pan.
Discard the bolts.
45. Remove the oil pump pickup pipe. Vehicles with automatic transaxle
Discard the gasket. 49. Using the special tool, remove the flexplate.
2006.0 Fiesta 1212006 GI 54224en
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Page 580 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)llm4L
303-01 A-I 04
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-01 A-I 04
DISASSEMBLY
All vehicles Remove the special tools.
50. Remove the crankshaft position (CKP)
sensor.
51. Remove the CKP sensor bracket.
52. Remove the crankshaft rear seal carrier.
Discard the crankshaft rear seal carrier.
53. Detach the cylinder block (short block) from
the mounting stand.
2006.0 Fiesta 1212006 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 583 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-I 07 Duratec-I 6V (Sigma)/l.GL Duratec-1 6V (Sigma)
303-01 A-I 07
DISASSEMBLY AND ASSEMBLY
OF SUBASSEMBLIES
Install the intake manifold. 9. Connect the throttle plate control motor
(DC-ISC) electrical connector.
6. N0TE:lnstall new fuel supply manifold O-ring
seals.
10. Connect the temperature and manifold
Install the fuel supply manifold. absolute pressure (T-MAP)
sensor electrical
connector.
7. Install the engine wiring harness.
8. Connect the fuel injector electrical
connectors.
2006.0 Fiesta 1212006 G202085en
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Page 584 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-OIA-1 08 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-01A-I 08 --
ASSEMBLY
Special Tool(s)
I Universal Flange Holding
Wrench
205-072 (1 5-030A)
Lifting Bracket, Engine
303-1 22 (2 1 -068A)
21 068A
I 1 Alignment Plate, Camshaft I
21 540
Socket, Cylinder Head Bolt
Gauge,
Bolt Angle
303- 1 74 (2 1 -540)
I I Locking Tool, Flywheel I
Special Tool(s)
Installer, Crankshaft Seal
303-395 (21 -1 71 )
Mounting Stand
303-435 (2 1 -1 87)
Mounting Bracket for 303-435
303-435-06 (21 -031
B)
c
Mounting Plate for
2006.0 Fiesta 1212006 GI 54225en
..
ES21202
Socket, Spark Plug
303-499 (21 -202)
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