Vetus VF4 - Set of Pistons, Gudgeon Pins and Seals (Replace)

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Service manual VF4 VF5
Set of pistons, gudgeon pins and seals (replace)4.6
Remove the piston rings.
Release the pin (2 a) and separate the connecting rods (2b) from
the piston (2c).
Remove the piston rings (1 a) from the pistons using a suitable
tool (1b).