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:

    Engine (Removal)
    Special Tool(s) Lifting Bracket Set, Engine 303-D095 (D94L-6001-A) or equivalent Spreader Bar 303-D089 (D93P-6001-A3) or equivalent Heavy Duty Floor Crane 014-00071 or equivalent Removal WARNING: Do not smoke or ...

    Disassembly
    1. Remove the No. 1 selective pump support thrust washer. 2. Remove the front pump support. 1. Remove the bolts. 2. Remove the front pump support. 3. Remove the seal rings. 4. Remove the inner and outer pump gerotor gears. 5. Carefully pry spring ...

    Principles of Operation
    NOTE: A new instrument cluster must be reconfigured. Refer to Section. The instrument cluster is a hybrid electronic cluster (HEC). The instrument cluster uses both hardwired and the standard corporate protocol (SCP) communication network to transmit a ...