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Cylinder Boring

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  1. Before you use any type of boring bar, clean the top of the cylinder block in order to remove any dirt or burrs.
  2. Carefully follow the instructions furnished by the manufacturer regarding use of equipment.
  3. When you rebore cylinders, make sure all crankshaft bearing caps are in place. Tighten the bearing caps to the proper torque in order to avoid distortion of the bores in the final assembly. The crankshaft must be removed prior to cylinder boring.
  4. When you take the final cut with a boring bar, leave 0.001" (0.03 mm) on the diameter for finish honing. This gives the required position to the cylinder clearance specifications. (Carefully perform the honing and boring operation in order to maintain the specified clearances between pistons, rings, and cylinder bores).
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