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banging noise upon starting / turning


Vehicle Information: Year: 1984; Engine (Size, Modifications): 3.3 l mod 3.6 turbo, different transmission; Total Mileage: 56000;

My 1984 930T has a chunking banging noise when I start (let out clutch). It seems worse when I am turning at the same time, ie. leaving a parking place turning left. It chunks 4 to 5 times during a start, but seems ok in all higher gears, and other driving. It also has been heard when low rpms (2000) in second or third, when cornering and putting on some slight power. It may bank again a time or two.any ideas, where to start to look. PS. engine mounts have all been verified ok, there was one broken some time ago with some banging noise similar to this.

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