11 25 Pistons with Rings and Pins

WARNING: This page is about a different car, the 2016 MINI Cooper Paceman, 2015 MINI Cooper Paceman, 2014 MINI Cooper Paceman, and 2013 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For diameter of cylinder bore, refer to ENGINE BLOCK .

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	76.949... 76.967
Piston running clearance	mm	0.033... 0.067
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	0.20... 0.40
End clearance (wear limit)	mm	0.95
Side clearance	mm	0.015... 0.070
2nd groove
End clearance	mm	0.30... 0.55
End clearance (wear limit)	mm	1.06
Side clearance	mm	0.015... 0.060
3rd groove
End clearance	mm	0.10... 0.40
End clearance (wear limit)	mm	0.82
Side clearance	mm	0.040... 0.10