As a professional mechanic, I would say that there are numerous reasons a BB might go in slightly tightly or not as easily as a perfect tool video might show:
1. It is true that not all frames from Rivendell are faced and chased before they are delivered to customers. I had to end up facing and chasing my Quickbeam when I got it. 2. Shimano BB's now ship with a thread locking compound pre-applied to their threads, so there is resistance from that the first time you thread in a BB. 3. Even perfectly faced/chased BB shells and BB's with clean threads will not always thread together 100% smoothly. To a certain extent it depends on the production tolerances of the BB shell and BB cups, how much deformation there was in joining the tubes and BB shell, etc. If anything, I would take comfort in the fact that it took them a while and that they backed it out to check things as they were installing it. They were taking the time to make sure it was done right. The hamfisted mechanic forces things in quickly and doesn't give it a second thought. On Tuesday, February 17, 2015 at 5:28:03 PM UTC-8, drew beckmeyer wrote: > > preface: im not much of a mechanic. i can install and adjust most allen > wrenchy components, but beyond that, i go to a bike shop. > > so, i got my hunqapillar frame a few months ago and i got a standard issue > shimano bb to have installed. took it to a local used bike shop and had the > guys put it in, since i dont have the tool or previous knowledge of how to > do this. i watched them and it looked like it was taking some work. hard > cranking, working it in and out etc. grease was used, but they didnt chase > it. it struck me as not the easiest/somewhat rough install, but id never > seen one installed before, so what did i know... > > bike rides fine. bb is smooth, no sounds, no wiggle, no complaints. > > Cut to me, now, watching instructional videos. i stumble upon a bb install > video and it seems like theirs went in much easier than mine. this makes me > nervous. > > i call a higher end and reputable bike shop and tell them this story. > mechanic says "it might just be that it wasn't chased. it might be that > they stripped the threads and if we take the bottom bracket out, one will > never go back in again." i ask if what he would do if he was in this > predicament. "we can check it out, but i would maybe just ride it until you > need a new bottom bracket because if the threads are gone, we cant fix it." > > obviously, this makes me infinitely more nervous and sick to my stomach. > > what can you tell me? what would you do? how likely is it that this is a > deathblow? > > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
