Husqvarna 525P4S Workshop Manual page 57

Repair instructions
Wear tolerances
Cylinder bore
When the surface coating is worn and aluminium
appears
Piston ring gap
Max. 0,5 mm with the piston ring inserted in the
lower part of the cylinder.
Piston ring groove
Max. 1,1 mm. Clean the groove before checking the
measurement.
Piston ring play
Max. 0.1 mm. Clean the groove before checking the
measurement.
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