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PISTON PIN REPLACEMENT

Fig. 1: Use a ring expander tool to remove the piston rings

Fig. 2: Use needlenose or snapring pliers to remove the piston pin snaprings

Use care at all times when handling and servicing connecting rods and pistons. To prevent possible damage to these units, do not clamp the rod or piston in a vise since they may become distorted. Do not allow the pistons to strike against one another, against hard objects or bench surfaces, since distortion of the piston contour or nicks in the soft aluminum material may result.

  1. Remove the piston rings using a suitable piston ring remover.
  2. Remove the piston pin lockring, if used. Install the guide bushing of the Then, on all engines, press the piston pin out of the piston with tools designed for this purpose.
  3. Install the piston and connecting rod assembly on a support, and place the assembly in an arbor press. Press the pin out of the connecting rod, using the appropriate piston pin tool.
  4. Assembly is the reverse of disassembly. Use new lockrings where needed.

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