Strange knock (tap) noise

[cwspellowe]

Does sound like it's fouling the bulkhead mate, bear in mind the mounts are only rubber so if you're changing gear hard or f*cking about with the throttle the whole thing will rock quite heavily, more so than when it's sat still. Watch dyno videos and you'll see how much engines can move on standard mounts.

First job would be to chock the top engine mount with some appropriately sized bits of metal angle. Make sure it's wedged solid and go for a drive. Could always try one of the Group N top mounts as they're harder rubber, or keep the chocks in like I did with the GTI6.