Ford Mustang (1999-2004) Service Manual: 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 matched set and should not be interchanged.

Measure the piston pin bore diameter in two directions on each side. Verify the diameter is within specification.

  • If out of specification, install new components as necessary.

Piston - Pin to Bore Diameter

 

Piston - Pin to Bore Diameter

Piston -Diameter

1. Measure the piston diameter 90 degrees from the piston pin at the point indicated.

  • If out of specification, install new components as necessary.

Piston -Diameter

Piston -to Cylinder Bore Clearance

1. Subtract the piston diameter from the cylinder bore diameter to find the piston-to-cylinder bore clearance.

    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 o ...

    Piston - Selection
    NOTE: The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston. 1. Select a piston size based on the cylinder bore. 2. NOTE: For precision fit, new ...

    Other materials:

    Removal
    1. Raise and support the vehicle. 2. Remove the rear wheel and tire assemblies. 3. CAUTION: Remove the rear brake calipers to prevent drag during the drive pinion bearing preload adjustment. CAUTION: Do not allow the calipers to hang from the brake hoses ...

    Engine Dynamic Balance Shaft
    Removal 1. Remove the timing chain (6268). For additional information, refer to Timing Chain in this section. 2. Disconnect and position the wire harness aside. 3. Remove the radiator fan and shroud assembly (8146). 4. Remove the engine dynamic balan ...

    Halfshaft
    Special Tool(s) Differential Plug 205-294 (T89P-4850-B) Differential Seal Protector 205-461 Front Hub Remover 205-D070 (D93P-1175-B) or Equivalent Halfshaft Removal Tool 205-475 Steering Arm Remover 211-0 ...