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 ...
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Ford Focus Engine oil check
CAUTION:
Do not use oil additives or other
engine treatments. Under certain
conditions, they could damage the
engine.
Note: The oil consumption of new
engines reaches its normal level after
approximately 5 000 kilometres (3 000
miles).
Checking the oil level
CAUTION:
Make sure that th ...
