Lincoln Aviator: Engine System - General Information / General Procedures - Valve Stem Diameter
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. Verify the diameter is within specification.
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
Valve guides tend to wear in an hourglass pattern.
The ball gauge can be inserted into the combustion chamber side of the
valve guide, if necessary...
Other information:
System Operation
Positive Crankcase Ventilation (PCV) System
The PCV system circulates crankcase gases through the intake air system into the engine where they are burned. The PCV system regulates the amount of ventilated air and blowby gases to the intake manifold...
System Operation
System Diagram
Item
Description
1
BCM
2
GWM
3
SODR
4
SODL
5
DSM
6
PCM
7
HVAC module
8
RH steering wheel switch
9
HUD module
10
Rain sensor
11
IPC
12
ACM
13
Displays
14
Adaptive cruise control
15
DTE/Low fuel indication
16
Forward collision warning
17
Clock/outside air temperature
18
Electric Vehicle (EV) range indication
19
Active driver assist system display
20
Digital speedometer/speed sign display
21
BLIS
22
LH
23
RH
24
Turn indicators
25
Navigation
26
APIM
27
SCCM
28
IPMA
29
SIMA
Network Message Chart
Module Network Input Messages - HUD Module
Broadcast Message
Originating Module
Message Purpose
Adaptive cruise control follow mode display
IPMA
Input used to control the ACC component in the active driver assist system display...