Ford Focus Service Manual: Piston Selection - Engine System

Ford Focus Service Manual / Powertrain / Engine / General Information / Piston Selection - Engine System

NOTE:

The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston.

Select a piston size based on the cylinder bore.

NOTE:
For precision fit, new pistons are divided into 3 categories within each size range based on their relative position within the range. A paint spot or specific size grade on a new piston indicates the position within the size range.
Choose the piston with the correct paint color or specific size grade.
- Refer to the appropriate section in Group 303 for the procedure.

Piston Inspection - Engine System

Special Tool(s) Scraper, Piston Ring Groove 303-D033 (D81L-6002-D) or equivalent NOTICE: Do not use a caustic cleaning solution or a wire brush to clean the pistons ...

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NOTE: Refer to the appropriate section and procedure for special instructions on loosening and tightening mount fasteners. With the vehicle in NEUTRAL, position it on a hoist. For additional in ...

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