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:

    Refrigerant Lines
    The condenser to evaporator tube (19835) contains the high pressure liquid refrigerant upstream of the evaporator core orifice. The A/C manifold and tube (19D734) is attached to the A/C compressor, is sealed with O-ring seals, and has the following features ...

    Engine Mount RH
    Special Tool(s) Lifting Bracket, Engine 303-D088 (D93P-6001-A2) Support Bar, Engine 303-290-A Removal 1. Install the special tool. 2. Install the special tools. 3. Remove the starter. For additional information, refer to Secti ...

    Cleaning
    1. Fabricate a cleaning tool from a 1/8 inch diameter brazing rod. 2. Cut an abrasive pad from maroon colored 3M Scotch Brite with the dimensions corresponding to the coupling size. 3. Assemble the pad to the tool. 4. Coat the abrasive pad with PAG Refri ...