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Hello,
Any ideas what has happened with this main bearing? We noticed metal flakes in the oil filter and decided to take a look. The rest of the mains are ok, engine was running fine for 600 competitive km.
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20201005_220428.jpg
Looks like surface fatigue according to this guide from Mahle:
Yup - any other signs of detonation or pre-ignition? Another cause may be incorrect bearing type for the application - were these OEM or proper competition bearings?
