Ford Explorer: Engine System - General Information / General Procedures - Piston Ring End Gap

Ford Explorer 2020-2025 Service Manual / Powertrain / Engine / Engine System - General Information / 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.

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NOTE: Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore.

NOTE: Piston rings should not be transferred from one piston to another.

NOTE: The cylinder bore must be within specification for taper and out-of-round.
Use a piston without rings to push a piston ring in a cylinder to the bottom of ring travel.

Using the Feeler Gauge Set measure the top piston ring end gap and the second piston ring end gap
Use the General Equipment: Feeler Gauge

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 th..

General Procedures - Piston Selection

Check NOTE: Refer to the appropriate Section 303-01 for the specifications. NOTE: The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston..

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