Cylinder Block Rebore

Sequence of Operation:

· Tidy the workstation and check the accuracy of measuring instruments.

· Check the cylinder bore size with an inside micrometer.

· Determine the size to be bored to and check the availability of pistons and rings.

· Clean the base of the block and then secure the cylinder block on the machine bed.

· Mount the correct boring spindle and boring head on the rebore machine.

· Fit a radial finger to the machine spindle head and clock a cylinder bore true under the ridge. Lock the machine bed in position and remove the radial finger after clocking.

· Grind a cutting tool to the correct angle and radius.

· Secure the tool in the spindle head at the correct height using a direct reading micrometer.

· Select the correct speed and feed and bore down a trial cut approximately 6mm long.

· Check the size with an inside micrometer and adjust the tool if necessary.

· Bore through the cylinder bores.

· Cut a chamfer at the top of the cylinder at 45degrees.

· Remove the block from rebore machine and hone.

· Wash honing oil off and apply rust inhibitor on machined surface.

The End.

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