Ford Mustang (1999-2004) Service Manual: Piston Inspection

Special Tool(s)

Scraper, Piston Ring Groove 303-D033 (D81L-6002-D) or equivalent

CAUTION: Do not use a caustic cleaning solution or a wire brush to clean the pistons or damage can occur.

1. Clean and inspect the (1) ring lands, (2) skirts, (3) pin bosses, and the (4) tops of the pistons. If wear marks, scores or glazing is found on the piston skirt, check for a bent or twisted connecting rod.

Piston Inspection

2. Use the Piston Ring Groove Scraper to clean the piston ring grooves.

  • Make sure the oil ring holes are clean.

Piston Inspection

    Crankshaft - Connecting Rod Journal Taper, Out of Round
    1. Measure the crankshaft connecting rod journal diameters in two directions perpendicular to one another at each end of the connecting rod journal. The difference in the measurements from one e ...

    Piston - Pin to Bore Diameter
    1. WARNING: Cover the end of the pin bore with a hand or shop rag when removing the retainer ring, since it has a tendency to spring out. Wear eye protection. NOTE: Piston and piston pins are a matc ...

    Other materials:

    Valve Cover RH
    Material Item Specification Metal Surface Cleaner F4AZ-19A536-RA or equivalent WSE-M5B392- A Silicone Gasket and Sealant F7AZ-19554-EA or equivalent WSE-M4G323- A4 PAG Refrigerant Compressor Oil F7AZ-19589-DA (Motorcraf ...

    Charging System (Description and Operation)
    The charging system is a negative ground system consisting of the following: generator internal voltage regulator charging system warning indicator storage battery necessary wiring and cables The generator is belt-driven by the engine ...

    Brake Booster - Hydro-Boost (Removal and Installation)
    Special Tool(s) Installer Set, Teflon Seal 211-D027 (D90P-3517-A) or equivalent Removal WARNING: The power brake booster should not be carried by the accumulator, nor should it ever be dropped on the accumulator. Check the snap ring on th ...