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

Check

NOTE: Refer to the appropriate Section 303-01 for the specification.

  1. 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 2020-2021 Service Manual: Diagnosis and Testing - D Clutch


    Symptom Chart D Clutch For D clutch operation, REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation).   D Clutch Condition Possible Sources Action D clutch does not apply SSD mechanically stuck OFF INSTALL a new solenoid...

    Lincoln Aviator 2020-2021 Service Manual: Removal and Installation - Air Cleaner Outlet Pipe RH


    Removal NOTICE: The turbocharger compressor vanes can be damaged by even the smallest particles. When removing any turbocharger or engine air intake system component, ensure that no debris enters the system. Failure to do so may result in damage to the turbocharger...

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    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.

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