Sounds like doublet separation.
You might try Harry Fleenor - he is an expert on Rollei cameras:
http://www.rolleirepairs.com/
I'm pretty sure he can clean between the lenses, but repairing doublet separation is a different story.
You may try these other repair people:
http://www.sl66.com/pg/repair.shtml#usa
Or this message:
Mr Krikor Maralian Krimar Photo Shop 105-B Broadway Elmwood Park, NJ 07407 Telephone (201) 796-0554 Krikor is the official Rollei repair service for older models in the US market and was Head Technician at Marflex (the former official repair people), has 42 years of Rollei repair service experience. Besides 23 years at Marflex, Krikor trained at the Rolleiflex factory for three years, with an 8 year stint at Rollei/Africa, and eight years at Rollei/USA. If that isn't enough he is a very nice person who is very generous with his time; if you live in the NYC area dropping in and showing him your camera might save an expensive repair.
Good luck
Vick