Regulagem da folga de válvulas
Valve Clearance Adjustment

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303-01A-18
Engine – 2.5L Duratec-HE (122kW/165PS) - MI4
303-01A-18
GENERAL PROCEDURES
NOTE: Mark the location and orientation of each
camshaft bearing cap.
7
6
4
3
5
1
2
12
11
10
8
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20.
Remove the valve tappet and read the
thickness from the underside.
21.NOTE: The number on the valve tappet only
reflects the digits that follow the decimal. For
example, a tappet with the number 0.650 has
the thickness of 3.650 mm.
NOTE: The nominal clearance is: intake: 0.25
mm (0.0095 in). exhaust: 0.30 mm (0.0115 in).
NOTE: The acceptable clearances after being
fully installed are: intake: 0.22-0.28 mm
(0.008-0.011 in). exhaust: 0.27-0.33 mm
(0.010-0.013 in).
Calculate the required thickness of the valve
tappet with the following formula: X S + M
- V
Required thickness of tappet ;
Thickness of currently fitted tappet 6
Measurement of existing valve clearance
(actual value) 0
Desired valve clearance 9
22.Install the correct valve tappet.
23.
CAUTION: Make sure that the camshafts
and camshaft bearing caps are installed
in their original locations.
NOTE: Lubricate the camshaft journals and
bearing caps with clean engine oil.
Coat the camshaft bearing caps with oil and
install the camshafts approximately at valve
overlap position cylinder No. 4.
Material: Hypoid Oil 85W-90 (SQ-M2C9002-AA
/ A72SX-19K261-CA) transmission fluid
Torque:
Stage 1: 7
Nm
Stage 2: 16 Nm
6
8
7
10
12
11
4
1
2
3
5
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24.Special Tool(s): 303-465
303-465
E134694
25.Install the timing chain on the intake camshaft
drive gear.
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26.NOTE: Only tighten the bolt finger tight at this
stage.