Lincoln Aviator: Engine System - General Information / General Procedures - Piston Inspection
Inspection
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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.
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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:
Parking Aid Overview
Parking Aid - Audible
The
available parking aid features depend on the vehicle trim level and
options selected. The possible audio parking aid configurations are as
follows:
Front and rear parking aid
Front and rear parking aid, plus active park assist and the side sensing system (also known as flank guard)
The
rear parking aid system sounds a warning tone through the rear audio
speakers to alert the driver of stationary objects near the rear bumper
when the vehicle is in reverse...
Materials
Name
Specification
Motorcraft® Metal Brake Parts CleanerPM-4-A, PM-4-B
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Removal
NOTE:
Removal steps in this procedure may contain installation details.
Remove the wheel and tire.
Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation)...