Replacing Magneto Bearing (Aluminum Cylinder Engines )-continued

bearing, opposite to the split in the bushing, make a notch in the cylinder

hub at a 45 angle to the bearing surface. Use a chisel or screw driver

and hammer.

Press in the new bushing, being careful to align the oil notches, with

driver and crankcase support until the outer end of the bushing is flush

with the end of the reamed out cylinder hub.

With a blunt chisel or screw driver, drive a portion of the bushing into

the notch previously made in the cylinder. This is called staking and is

done to prevent the bushing from turning.

Reassemble sump to cylinder with guide bushing in the sump bearing.

Place reamer on pilot and insert the pilot into the cylinder bearing until

the tip of the pilot enters the guide bushings in the sump bearing.

Lubricate the reamer with kerosene, fuel oil, or Stoddard Solvent, then

ream the bushing, turning the reamer clockwise with a steady, even

pressure until reamer is completely through the bearing. Improper

lubricants will produce a rough bearing surface. Remove sump, reamer,

guide bushing, and clean out all reaming chips.