Tried 2 weeks ago on an R100RT..couldn't pull the heads away from the block while the headers held them in. Had to pull the headers out of the exhaust ports so the heads could be pulled away. Pipes just barely stayed in the collector so easy to reassemble.
The only way I can maybe see this working is to take the mufflers and collector off so the headers just hang from the head.
BMW Club of Northern California, Ambassador, BMW MOA, Vice President Vintage BMW Club