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:

    Installation
    All vehicles 1. NOTE: Inspect the insulators for wear or damage. Install new insulators if necessary. Install the upper insulator on the spring. 2. Install the lower insulator on the lower arm. 3. Install the rear spring. Make sure the pigtail on the low ...

    Geartrain
    Power is transmitted from the torque converter to the Ravigneaux geartrain components through the input shaft and forward clutch cylinder. The geartrain contains a Ravigneaux planetary set connected by dual pinion gears. By holding or driving ...

    Removal
    1. Raise and support the vehicle. 2. Remove the rear wheel and tire assemblies. 3. CAUTION: Remove the rear brake calipers to prevent drag during the drive pinion bearing preload adjustment. CAUTION: Do not allow the calipers to hang from the brake hoses ...