Lincoln Corsair: Engine - 2.0L EcoBoost (177kW/240PS) – MI4 / General Procedures - Valve Clearance Adjustment
Special Tool(s) /
General Equipment
Check
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Remove the valve cover.
Refer to: Valve Cover (303-01A Engine - 2.0L EcoBoost (177kW/240PS) – MI4, Removal and Installation).
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Remove the RH front fender splash shield.
Refer to: Fender Splash Shield (501-02 Front End Body Panels, Removal and Installation).
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NOTE:
Turn the engine clockwise only, and only use the crankshaft bolt.
NOTE:
Measure the clearance of each valve at base circle, with the lobe pointed away from the tappet.
Use a feeler gauge to measure the clearance of each valve and record its location.
Use the General Equipment: Feeler Gauge
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Valve tappet assembly grade chart
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Grade
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Id Mark
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Thickness (mm)
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NOTE:
There are two numbers on the valve tappet, one is date code and the other is valve tappet thickness.
NOTE:
The date code “R0605” represents the year made (R), the month (06) and the day (05).
NOTE:
A tappet with the number N650 has the thickness of 3.650 mm.
NOTE:
Select tappets using this formula: tappet thickness =
measured clearance + the existing tappet thickness - nominal clearance.
NOTE:
The nominal clearance is:
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intake: 0.25 mm (0.0095 in).
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exhaust: 0.36 mm (0.0142 in).
NOTE:
The acceptable clearances after being fully installed are:
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intake: 0.19-0.31 mm (0.0075-0.0122 in).
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exhaust: 0.30-0.42 mm (0.0118-0.0165 in).
Select the closest tappet size to the ideal tappet thickness available and mark the installation location.
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If any tappets do not measure within specifications, install new tappets in these locations.
Adjustment
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NOTE:
The following step is only necessary if adjustment is required.
Remove the camshafts.
Refer to: Camshafts (303-01A Engine - 2.0L EcoBoost (177kW/240PS) – MI4, Removal and Installation).
Special Tool(s) /
General Equipment
Oil Drain Equipment
Draining
With the vehicle in NEUTRAL, position it on a hoist.
Refer to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation)...
Special Tool(s) /
General Equipment
303-1685Alignment Tool, Camshaft
303-507Timing Peg, Crankshaft TDCTKIT-2001N-FLMTKIT-2001N-ROW
Feeler Gauge
Removal
NOTE:
During engine repair procedures, cleanliness is extremely
important...
Other information:
WARNING: Do not overfill the fuel
tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray
and fire.
WARNING: The fuel system may be
under pressure. If you hear a hissing sound
near the fuel filler inlet, do not refuel until
the sound stops...
Special Tool(s) /
General Equipment
303-290B-20Adapter, Car-BarTKIT-2014D-ROW3TKIT-2014D-FL_ROW
303-F070Support Bar, EngineTKIT-1999A-F/LTTKIT-1999A-FM/FLM
303-F072Support Bar, Engine
Oil Drain Equipment
Trolley Jack
Wooden Block
Materials
Name
Specification
Motorcraft® High Performance Engine RTV SiliconeTA-357
WSE-M4G323-A6
Removal..