Well, I recently purchased the Haynes Manual for my dad, for his Miata. It was both good and bad. The bad part was that the engine we thought was "so simple, and small" had alot of things that could go wrong with it, about 128 pgs worth. The good part, was that we now know how important it is to leave the really tough stuff to the pros, and that labor costs really are justified on certain jobs. Of course, maybe you are the type of guy who likes to take apart his engine, himself, and really gets into it.
Alright, so maybe I didn't answer your question, and went off on my own little tangent, but hey... I do think that the Haynes Manual is a good investment. Of course, I'm not sure, but I would imagine, that they would do more work on the n/a (normally aspirated) 850, as opposed to the turbo/t-5/t-5R/R *respectively*.
I have not found a Bentley service manual for the 850's.
Hopefully, someone will own the Haynes Manual and will be able to give us a personal opinion on it.
BTW, what year is your 850 Turbo?
Alright, so maybe I didn't answer your question, and went off on my own little tangent, but hey... I do think that the Haynes Manual is a good investment. Of course, I'm not sure, but I would imagine, that they would do more work on the n/a (normally aspirated) 850, as opposed to the turbo/t-5/t-5R/R *respectively*.
I have not found a Bentley service manual for the 850's.
Hopefully, someone will own the Haynes Manual and will be able to give us a personal opinion on it.
BTW, what year is your 850 Turbo?