Ford Mustang (1999-2004) Service Manual: Piston - Ring-to-Groove Clearance

1. Inspect the piston for ring land damage or accelerated wear.

Piston - Ring-to-Groove Clearance

2. Measure the piston ring-to-groove clearance.

  • Refer to the appropriate section in Group for the procedure.
  • If out of specification, install new components as necessary. Refer to the appropriate section in Group for the procedure.

Piston - Ring-to-Groove Clearance

    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: Cylin ...

    Piston - Pin Diameter
    1. Measure the piston pin diameter in two directions at the points shown. Verify the diameter is within specification. Refer to the appropriate section in Group for the procedure. If out of s ...

    Other materials:

    Rear Drive Axle and Differential
      The differential housing (4010) consists of a cast aluminum housing and a cast aluminum differential housing cover (4033). The differential housing cover uses silicone sealant as a gasket. The hypoid-design gearset consists of a 8.8-inch ...

    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, ...

    Pinpoint Tests
    CAUTION: Before removing and installing the generic electronic module (GEM) or its connectors, disconnect the battery. Failure to follow this caution will result in the GEM storing many erroneous DTCs, and it may exhibit erratic operation after in ...