Boxster (986) F6-2.7L (2000)
1. Clean the removed pistons with solvent naphtha. To identify the dimensional group (punched on the piston crown), carbon deposits must be
carefully removed, e.g. with a brass brush.
2. Check the piston diameter -D- at the piston skirt using an external micrometer. The measurement -X- is made at 16 mm from the bottom edge of
the skirt.
NOTE: The piston must be replaced if the wear limit is exceeded.
The maximum permissible wear at the specified measurement point is 100 mu.m (= 0.1 mm). The piston must be replaced if this dimension is
exceeded. The reference dimensions for the piston groups are to be taken from the table.
NOTE:
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Original pistons from the Porsche spare parts catalogue are available in the dimension group "X" only.
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Note the different weight groups