Lincoln Aviator: Engine System - General Information / General Procedures - Piston Selection
Check
NOTE:
Refer to the appropriate Section 303-01 for the specifications.
-
NOTE:
The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston.
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Measure the cylinder bore in 2 directions.
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Select a piston size based on the cylinder bore.
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NOTE:
For precision fit, new pistons are divided into 3
categories within each size range based on their relative position
within the range. A paint spot or specific size grade on a new piston
indicates the position within the size range.
Choose the piston with the correct paint color or specific size grade.
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...
Special Tool(s) /
General Equipment
Plastic Scraper
Nylon Bristle Disk
Plastic Razor Blade
Lint-Free Towel
Isopropyl Alcohol – 90 Percent Minimum
Materials
Name
Specification
Motorcraft® Silicone Gasket RemoverZC-30-A
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Motorcraft® Metal Surface Prep WipesZC-31-B
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Motorcraft® Engine Shampoo and DegreaserZC-20
ESR-M14P3-A
Motorcraft® Metal Brake Parts CleanerPM-4-A, PM-4-B
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Cleaning
NOTICE:
This procedure is only to be used on the sealing surfaces of
metal components...
Other information:
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
The crankshaft connecting rod journals must be
within specifications to check the connecting rod bearing journal
clearance.
Remove the connecting rod bearing cap and connecting rod bearing...
Overview
Power Windows
The
power windows operate only when the accessory delay relay is active.
The accessory delay relay is active whenever the ignition is on, or up
to 10 minutes after the ignition is changed from on to off while the
front driver and passenger doors remain closed...