Perhaps. I've never noticed a big 'pop' though when adding these pages. In fact, there's some concern that since these are non-commercial pages, they are dragging down the commercial pages. That's what I'm wondering. I suspect it'll actually make little difference - but we're going to see.
Loos of traffic to those pages means little. They traffic they brought in was non-buying service related stuff. People calling me and looking for manufacturer's phone numbers, or worse, assuming I am the manufacturer and looking for service (for products they didn't buy from me). I won't miss that.
One of the things about this project is that it's hell to get all that content online in a clean, spiderable format. Since I've removed it from my main site, I think I'm going to put this and similiar content on a seperate domain. Let it draw links naturally, or not, and just use those other sites as feeder links.