Join Date: Sep 2005
Location: Murray, KY
Bikes: Trek 7500 FX (2005)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Need help on unfreezing bottom bracket crank arm bolt
I'd like to clean, grease, adjust and check the bearings for rust on the Stronglight 93 BB on my '74 Motobecane Grand Record. The bolt and spindle are steel. I've tried a liquid wrench type product on the bolt, still resisting what I consider reasonable force to remove. It's been about 5 years since I overhauled it, possibly more, used Phil Wood grease, very little riding, kept indoors in the interim, no crud down the seat tube into the bracket. The cranks rotate smoothly and freely, no noise, no wiggle. I have the funky Stronglight socket tool and rod for use on the bolt (that's as much force as I'm willing to use, no 12" wrench handles) as well as the Stronglight crank arm puller (did this quite a few times, then shelved the bike for a while).
Maybe I should leave well enough alone - no long rides on the bike planned, just an occasional ride to remind me how much I enjoyed Greeley, Colorado, biking 30+ years ago. No problems with the 70's Normandy and Campy hubs (clincher/tubular - Mavic Gold rims, pretty) or Stronglight headset (I hate doing headsets - bearings everywhere) but I just can't get one of the BB bolts to budge. I got excited when I saw some Universal 61 brake lever gum hoods (only original equipment to deteriorate, barrel adj. covers are about to go, though) available and thought I'd tune it up and then order them ($35) if all went well.
Just dumped a GT MTB and bought Trek 7500 FX's for my wife and myself, sweet bike for riding to work and for recreation, so I have to ask myself why I'm fooling with the Motobecane - mid-life (I wish) crisis, maybe.