Yes, put the engine to TDC, and I used some liquid paper to mark the chain with regards to the sprocket.
On the RH sprocket, I unlooped the chain, and took it completely off the engine. On the LH side, I then just unlooped the chain from the sprocket, and let it dangle towards the RHS. This is all assuming you've already removed the chain tensioner from the LH head.

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Ben

'85 500 SEL
'85 928S2
'88 560 SEC
'90 750i