Lincoln Aviator 2020-2026 Service Manual / Powertrain / Engine / Engine System - General Information / General Procedures - Piston Inspection

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.

General Procedures - Piston Diameter

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...

General Procedures - Piston Ring End Gap

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:

Lincoln Aviator 2020-2026 Service Manual: Removal and Installation - Vacuum Pump

Special Tool(s) / General Equipment Plastic Scraper Materials Name Specification Motorcraft® High Performance Engine RTV SiliconeTA-357 WSE-M4G323-A6 Motorcraft® Silicone Gasket RemoverZC-30-A - Motorcraft® Metal Surface Prep WipesZC-31-B - Motorcraft® Metal Brake Parts CleanerPM-4-A, PM-4-B - Removal NOTICE: During engine repair procedures, cleanliness is extremely important...

Lincoln Aviator 2020-2026 Service Manual: Description and Operation - Passive Anti-Theft System (PATS) - Overview

Overview The PATS deters the vehicle from theft by preventing the vehicle from starting unless a valid programmed key is detected inside the vehicle when the START/STOP button is pressed. The PATS does not disable an already running vehicle. Backup Starting NOTE: There are certain areas within the vehicle where the passive key may not be detected and the message center displays No Key Detected...

Children and Airbags

WARNING: Airbags can kill or injure a child in a child restraint. Never place a rear-facing child restraint in front of an active airbag. If you must use a forward-facing child restraint in the front seat, move the seat upon which the child restraint is installed all the way back.

Lincoln Aviator. Children and Airbags