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 Owners Manual: Proper Driver and Front Passenger Seating Adjustment

WARNING: National Highway Traffic Safety Administration (NHTSA) recommends a minimum distance of at least 10 in (25 cm) between an occupant's chest and the driver airbag module. To properly position yourself away from the airbag: Move your seat to the rear as far as you can while still reaching the pedals comfortably...

Lincoln Aviator 2020-2026 Service Manual: Removal and Installation - Front Door Speaker

Removal NOTE: Removal steps in this procedure may contain installation details. All vehicles Remove the front door trim panel. Refer to: Front Door Trim Panel (501-05 Interior Trim and Ornamentation, Removal and Installation). Front door mid range speaker Separate the wiring harness guide, remove the screws and the front door mid range speaker Torque: 22 lb...

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.