Lincoln Aviator: Engine System - General Information / General Procedures - Piston Inspection
Inspection
-
NOTE:
Do not use a caustic cleaning solution or a wire brush to clean the pistons or damage can occur.
Clean and inspect the (1) ring lands, (2) pin bosses,
(3) skirts and the (4) tops of the pistons. If wear marks, scores or
glazing is found on the piston skirt, check for a bent or twisted
connecting rod.
-
NOTE:
Make sure the oil ring holes are clean.
Using a Piston Ring Groove Scraper, clean the piston ring grooves.
Check
Measure the piston diameter 90 degrees from the piston
pin and piston diameter (DN) height down from the top of the piston at
the point indicated...
Special Tool(s) /
General Equipment
Feeler Gauge
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore...
Other information:
System Operation
Headlamps - Low Series
System Diagram
Item
Description
1
HS-CAN2
2
BCM
3
LH low beam
4
LH high beam
5
RH low beam
6
RH high beam
7
SCCM
8
LH steering column multifunction switch
9
IPMA
10
GWM
11
HS-CAN1
12
Start/Stop switch
13
HCM
14
LIN
15
LIN
16
PCM
17
LH headlamp
18
RH headlamp
19
LH front suspension height sensor
20
LH rear suspension height sensor
21
Headlamp switch
22
(If equipped automatic headlamp leveling)
23
LIN
24
LIN
Network Message Chart
BCM Network Input Messages
Broadcast Message
Originating Module
Message Purpose
Headlamp flash to pass status
GWM
Indicates to the BCM a request for the high beams or flash-to-pass...
WARNING: Extended idling at high
engine speeds can produce very high
temperatures in the engine and exhaust
system, creating the risk of fire or other
damage.
WARNING: Do not park, idle or drive
your vehicle on dry grass or other dry
ground cover...