Ford Mustang (1999-2004) Service Manual: Piston - Ring End Gap

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

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

NOTE: Cylinder bore must be within specification for taper and out-of-round.

1. Use a piston without rings to push a piston ring in a cylinder to the bottom of ring travel.

Piston - Ring End Gap

2. Use a feeler gauge to measure the top piston ring end gap and the second piston ring end gap.

  • Refer to the appropriate section in Group for the procedure.

Piston - Ring End Gap

    Piston - Selection
    NOTE: The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston. 1. Select a piston size based on the cylinder bore. 2. NOTE: For precision fit, new ...

    Piston - Ring-to-Groove Clearance
    1. Inspect the piston for ring land damage or accelerated wear. 2. Measure the piston ring-to-groove clearance. Refer to the appropriate section in Group for the procedure. If out of specifica ...

    Other materials:

    Rear Ride Height Measurement - GT and Base
    Item Description 1 Body reinforcement 2 Ride height (shortest distance) 3 Rear axle Wheel Track Item Part Number Description 1 - Front track 2 - Rear track Dogtracking Item Part N ...

    Underbody Misalignment Check
    Underbody Dimensions   1. Underbody dimensions tolerances are +- 3.175 mm (0.125 in). Reference dimensions are not controlled dimensions. Reference points are +- 4.76 mm (0.1875 in). All underbody dimensions are detailed to the centerline of existin ...

    Component Tests
    Driveline Vibration An analysis of driveline vibration can also be conducted using the Vibration Analyzer; follow the manufacturer's directions. Driveline vibration exhibits a higher frequency and lower amplitude than does high-speed shake. Driveline vibra ...