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Engine front end metallic graunch on hard Acceleration


ClioSport Club Member
  172 Cup rallycar

Clio 172 Cup, only on hard acceleration i can hear what sounds like a series of metallic rubbing / graunch from under the bonnet, possibly LH side of the engine, and then it stops. It does it every time, but low speed accel its fine. Doesn't do it under braking, as if its on full torque - Anyone else had something like this and fixed it ? Engine mounts moving ? driveshaft? Thanks Simon