Lincoln Aviator 2020-2026 Service Manual / Powertrain / Engine / Engine System - General Information / General Procedures - Valve Guide Inner Diameter

Lincoln Aviator: Engine System - General Information / General Procedures - Valve Guide Inner Diameter

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.
- Use a ball gauge to determine the inside diameter of the valve guides in 2 directions at the top, middle and bottom of the valve guide.
- Measure the ball gauge with a micrometer.
- If the valve guide is not within specifications, install a new cylinder head assembly.

General Procedures - Spark Plug Inspection

Inspection NOTE: Dropped spark plugs should always be discarded. Unfired An unfired spark plug should appear very clean with a pure nickel finish to the threads and ground strap...

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...

Other information:

Lincoln Aviator 2020-2026 Service Manual: Removal and Installation - Rear Driveshaft

Special Tool(s) / General Equipment 100-001 (T50T-100-A) Slide Hammer 205-832Remover, HalfshaftTKIT-2006C-FFMFLMTKIT-2006C-LMTKIT-2006C-ROW Slide Hammer Materials Name Specification Motorcraft® Premium Long-Life GreaseXG-1-E1 ESA-M1C75-B Removal NOTE: The maximum articulation of the flex coupling is 4 degrees...

Lincoln Aviator 2020-2026 Owners Manual: Switching Off Your Vehicle When It Is Stationary

Put the transmission in park (P). Press the push button ignition switch once. Apply the parking brake. Note: This switches off the ignition, warning lamps and indicators. Vehicles Using Phone as a Key Shift into park (P). Press the push button ignition switch...

Fastening the Seatbelts

The front outboard and rear safety restraints in the vehicle are combination lap and shoulder belts.

Insert the belt tongue into the proper buckle (the buckle closest to the direction the tongue is coming from) until you hear a snap and feel it latch. Make sure that you securely fasten the tongue in the buckle.

Lincoln Aviator. Fastening the Seatbelts

To unfasten, press the release button and remove the tongue from the buckle.