Cylinder Bore

Cylinder Bore Taper





1. 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. Bore the cylinder to the next oversize.

Cylinder Bore Out of Round





1. Measure the cylinder bore in 2 directions. The difference is the out of round. Verify the out of round is within the wear limit and bore the cylinder to the next oversize limit.

Cylinder Bore Cleaning

1. CAUTION: If these procedures are not followed, rusting of the cylinder bores may occur.

Clean the cylinder bores with soap or detergent and water.
2. Thoroughly rinse with clean water and wipe dry with a clean, lint free cloth.
3. Use a clean, lint free cloth and lubricate the cylinder bores.
^ Use clean engine oil meeting Ford specification.