Lincoln Aviator 2020-2026 Service Manual / Powertrain / Engine / Engine System - General Information / General Procedures - Cylinder Head Distortion

Lincoln Aviator: Engine System - General Information / General Procedures - Cylinder Head Distortion

Special Tool(s) / General Equipment

Feeler Gauge

Check

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

NOTE: Make sure all cylinder head surfaces are clear of any gasket material, silicone sealant, oil and coolant. The cylinder head surface must be clean and dry before running a flatness check.

NOTE: Use a Straightedge that is calibrated by the manufacturer to be flat within 0.005 mm (0.0002 in) per running foot of length, such as Snap-On® GA438A or equivalent. For example, if the Straightedge is 61 cm (24 in) long, the machined edge must be flat within 0.010 mm (0.0004 in) from end to end.
Using a Straightedge and a Feeler Gauge Set, inspect the cylinder head for flatness in the sequence shown.
Use the General Equipment: Feeler Gauge

General Procedures - Cylinder Bore Taper

Check NOTE: Refer to the appropriate Section 303-01 for the specification. Measure the cylinder bore at the top, middle and bottom of piston ring travel in 2 directions as indicated...

General Procedures - Exhaust Manifold Cleaning and Inspection

Special Tool(s) / General Equipment Feeler Gauge Cleaning Clean the exhaust manifold using a suitable solvent. Use a plastic scraping tool to clean the gasket sealing surfaces...

Other information:

Lincoln Aviator 2020-2026 Owners Manual: Reduced Engine Performance

WARNING: If you continue to drive your vehicle when the engine is overheating, the engine could stop without warning. Failure to follow this instruction could result in the loss of control of your vehicle. If the engine coolant temperature gauge needle moves to the upper limit position, the engine is overheating...

Lincoln Aviator 2020-2026 Owners Manual: Tire Pressure Monitoring System

WARNING: The tire pressure monitoring system is not a substitute for manually checking tire pressures. You should periodically check tire pressures using a pressure gauge. Failure to correctly maintain tire pressures could increase the risk of tire failure, loss of control, vehicle rollover and personal injury...

Adjusting the Steering Wheel - Vehicles With: Manual Adjustable Steering Column

WARNING: Do not adjust the steering wheel when your vehicle is moving.

Note: Make sure that you are sitting in the correct position.

Unlock the steering column. Adjust the steering wheel to the desired position.

Lincoln Aviator. Column

Lock the steering column.