Lincoln Nautilus: Engine System - General Information / Valve Train Analysis - Gasoline. General Procedures
Valve Train Analysis - Engine Off, Valve Cover Removed
NOTE:
The following component inspections are used to diagnose valve train concerns.
-
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)
.
For additional information, refer to: Spark Plugs (303-07B)
.
For additional information, refer to: Spark Plugs (303-07C)
.
For additional information, refer to: Spark Plugs (303-07D)
.
For additional information, refer to: Spark Plugs (303-07E)
.
-
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)
.
For additional information, refer to: Spark Plugs (303-07B)
.
For additional information, refer to: Spark Plugs (303-07C)
.
For additional information, refer to: Spark Plugs (303-07D)
.
For additional information, refer to: Spark Plugs (303-07E)
.
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:
Removal
WARNING:
The following procedure prescribes critical repair steps
required for correct restraint system operation during a crash. Follow
all notes and steps carefully. Failure to follow step instructions may
result in incorrect operation of the restraint system and increases the
risk of serious personal injury or death in a crash.
NOTE:
Removal steps in this procedure ..
System Operation
System Diagram - Power Windows
Driver Side Windows
Item
Description
1
Master Window Control Switch
2
Driver Door Module (DDM)
3
Driver Door Window Regulator Motor
4
Rear Door Window Control Switch
5
Rear Door Module (RDM)
6
Rear Door Window Regulator Motor
7
LIN
8
LIN
Passenger Side Windows
..