Ford Focus Service Manual: Cylinder Bore Taper

Ford Focus Service Manual / Powertrain / Engine / Engine Block / Cylinder Block / Cylinder Bore Taper

NOTE:

Refer to the appropriate Section 303-01 for the specification.

Measure the cylinder bore at the top, middle and bottom of piston ring travel in 2 directions as indicated. Verify the cylinder bore is within the wear limit. The difference indicates the cylinder bore taper. If the cylinder bore taper does not meet specification, bore the cylinder to the next oversize limit.

Cylinder Bore Out-of-Round

NOTE: Refer to the appropriate Section 303-01 for the specification. Measure the cylinder bore in 2 directions. The difference is the out-of-round. ...

Piston To Cylinder Bore Clearance

NOTE: Refer to the appropriate Section 303-01 for the specification. Subtract the piston diameter from the cylinder bore diameter to find the piston-to-cylinder bore clearance. ...

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