Ford Focus Service Manual: 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 ...
Powertrain/Drivetrain Mount Neutralizing
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 ...
More about Ford Focus:
Ford Focus Engine compartment overview - 2.5L Duratec-ST (VI5)
A. Screen washer fluid reservoir*: See Washer fluid check.
B. Engine coolant reservoir*: See Engine coolant check.
C. Brake and clutch fluid reservoir (right-hand drive)*: See Brake and clutch
fluid check.
D. Engine oil filler cap*: See Engine oil check.
E. Brake and clutch fluid reservoir ( ...
