Lincoln Corsair: Engine System - General Information / General Procedures - Valve Train Analysis
Valve Train Analysis - Engine Off, Valve Cover Removed
NOTE:
The following component inspections are used to diagnose valve train concerns.
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Check for damaged or severely worn parts and correct assembly.
Valve Train Analysis - Camshaft Lobe Lift
-
Remove the spark plugs.
For additional information, refer to: Spark
Plugs (303-07A Engine Ignition - 2.0L EcoBoost (177kW/240PS) – MI4/2.0L
EcoBoost (184kW/250PS) – MI4, Removal and Installation).
For additional information, refer to: Spark Plugs (303-07B Engine
Ignition - 2.3L EcoBoost (199kW/270PS), Removal and Installation).
For additional information, refer to: Spark Plugs (303-07C Engine
Ignition - 2.5L Duratec – Hybrid (121kW/164PS) (BG), Removal and
Installation).
-
Install the Dial Indicator Gauge with Holding Fixture so
the rounded tip of the dial indicator is on top of the camshaft lobe
and on the same plane as the valve tappet.
-
Rotate the crankshaft using a breaker bar and socket
attached to the crankshaft pulley retainer bolt. Rotate the crankshaft
until the base circle of the camshaft lobe is reached.
-
Zero the dial indicator. Continue to rotate the
crankshaft until the high-lift point of the camshaft lobe is in the
fully raised position (highest indicator reading).
-
To check the accuracy of the original dial indicator
reading, continue to rotate crankshaft until the base circle is reached.
The indicator reading should be zero. If zero reading is not obtained,
repeat Steps 2 through 5.
-
If the lift on any lobe is below specified service
limits, install a new camshaft and camshaft roller followers or valve
tappets.
-
Install the spark plugs.
For additional information, refer to:
Spark Plugs (303-07A Engine Ignition - 2.0L EcoBoost (177kW/240PS) –
MI4/2.0L EcoBoost (184kW/250PS) – MI4, Removal and Installation).
For additional information, refer to: Spark Plugs (303-07B Engine
Ignition - 2.3L EcoBoost (199kW/270PS), Removal and Installation).
For additional information, refer to: Spark Plugs (303-07C Engine
Ignition - 2.5L Duratec – Hybrid (121kW/164PS) (BG), Removal and
Installation).
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
Measure the diameter of each intake and exhaust valve
stem at the points shown...
Other information:
About Adaptive Headlamps
The headlamps are designed to adapt when
you are steering around a curve, or if the
camera detects lane markings indicating a
curve or traffic signs indicating an
intersection.
The system is designed to operate if all of
the following occur:
You switch the system on through your
vehicle settings.
You set the lighting control to the
autolamps position.
The ambi..
Shift Point Road Test
NOTE:
Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.
Upshift Gear Sequence
At times the 8-speed transmission may skip gears when the vehicle starts from a complete stop. This is normal and desired behavior. This transmission may also be described as a 7-speed transmission. For the 7-speed applications, 2nd gea..