chain has been hitting the cam cover

[maxclark91]

Took the tuscan out for an early morning drive after about 30 minutes had a mechanical/metal tapping sound from 4th but mainly 5th gear at low rpm 2000-3000 under load coming from the engine. Returned home removed the cam cover to find the chain has been hitting the cam. What would be this fix for this? A complete new chains down to the crank or half time bearing only? With the cam cover off I am able to move the chain up and down around 8mm with hand pressure.

Any advise, help or similar problems and fixes would be most appreciated.

I am a car mechanic for citroen and luckily they will let me use the ramps at work to sort the problem, just any advise is always welcome.