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:

    Inspection and Verification
    NOTE: Upon installation of a new GEM, the module must be reconfigured. For additional information, refer to Section. 1. The warning lamps are a GEM controlled system; refer to Section. 2. Verify the customer concern by operating the system in questio ...

    Flywheel Runout Check
    Special Tool(s) Dial Indicator/Magnetic Base 100-D002 (D78P-4201-B) or equivalent 1. Mount the special tool so that the indicator contact point rides on the clutch disc contact surface. 2. Turn the flywheel (6375); if the runout exceeds the ...

    Anti-Lock Control - Rear
    Torque Specifications Anti-Lock Control The four wheel anti-lock brake system (4WABS) consists of the following components: anti-lock brake control module (2C346) front anti-lock brake sensor (2C205) front anti-lock brake sensor indicator (2C182) ...