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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 159 (Engine - Technical Data - R57 (N14)) >> Pistons With Rings And Pins >> 11 25 Pistons with Rings and Pins N14

11 25 Pistons with Rings and Pins N14

WARNING: This page is about a different variant/trim than selected.
NOTE: For diameter of cylinder bore, refer to ENGINE BLOCK, CYLINDER CRANKCASE .
PISTONS WITH RINGS AND PINS SPECIFICATION (1 OF 2)

Piston and pin are paired to each other - replace together only.    
Measuring point "A" (position) mm 10
Piston diameter at measuring point "A"    
Original (new dimension) mm 76.941... 76.959
Piston running clearance mm 0.041... 0.064
Permissible total wear tolerance between piston and cylinder (engine operated) mm 0.10
PISTONS WITH RINGS AND PINS SPECIFICATION (2 OF 2)

1st groove    
End clearance mm 0.25... 0.35
Contact clearance (wear limit) mm 0.91
Axial play mm 0.030... 0.070
2nd groove    
End clearance mm 0.35... 0.50
Contact clearance (wear limit) mm 1.06
Axial play mm 0.030... 0.070
3rd groove    
End clearance mm 0.10... 0.35
Contact clearance (wear limit) mm 0.82
Axial play mm 0.030... 0.070