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:

    Charge Air Cooler
    Material Item Specification Silicone Gasket and Sealant F7AZ-19554-EA or equivalent WSE-M4G323-EA Removal and Installation 1. Drain the supercharger coolant. For additional information, refer to Section. 2. Release the fuel pressure. F ...

    Removal
    1. Disconnect the battery negative cable. 2. Drain the engine cooling system. 3. Remove the LH exhaust manifold. For additional information, refer to Exhaust Manifold-LH in this section. 4. Remove the lower intake manifold. For additional informatio ...

    Pinpoint Tests - OSC Equipped Vehicles
    Special Tool(s) Breakout Box, EEC-V Control System 418-049 (T94L-50-EEC-V) or equivalent MLP-TR Cable 418-F107 (007-00111) or equivalent Worldwide Diagnostic System (WDS) 418-F224 New Generation STAR (NGS) T ...