using a depth/feeler gauge, the clearance between the rod bolt and the block really needs to be at least 1mm / 0.04 inch. I went a little further and on the depth gauge, was at 1/16 which is 1.6mm / 0.062 inch.
(The tool has several names, Gap Gauge, Feeler Rule, Stainless Steel Metric Wedge Feeler Gauge Metric Taper Gauge Depth Ruler 1/16-3-4 Flange Ruler Inner Diameter Gauge)
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'10 X6M
'08 Cooper S
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