MartinYorkshire
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Good evening everyone,
I was hoping some of you may be kind enough to offer an opinion on the following images.
After not riding her bike, a 92 Rocky Mountain Hammer for a few years, her indoors decided she wanted to get back into it. I figured I'd better give the bike a service and started with the bottom bracket. It had never been removed since we had the bike.
Non drive side came off without any drama. Drive side however, wasn't exactly seized, just very tight on the entire removal. On closer inspection I can see thread damage, which matches in location, on both the frame thread and bottom bracket itself. The last 3rd of the bottom bracket thread is stripped, but not the frame. There was quite a lot of muck in the threads including particles.
Whats strange, is that the damage appears to be in the center of the thread overall and I can't work out how that could happen.
I'm trying to work out if the frame is done for, or if it's worth trying a new bottom bracket. I don't like the look of the damaged thread in the frame though.
I'd appreciate your thoughts.
I was hoping some of you may be kind enough to offer an opinion on the following images.
After not riding her bike, a 92 Rocky Mountain Hammer for a few years, her indoors decided she wanted to get back into it. I figured I'd better give the bike a service and started with the bottom bracket. It had never been removed since we had the bike.
Non drive side came off without any drama. Drive side however, wasn't exactly seized, just very tight on the entire removal. On closer inspection I can see thread damage, which matches in location, on both the frame thread and bottom bracket itself. The last 3rd of the bottom bracket thread is stripped, but not the frame. There was quite a lot of muck in the threads including particles.
Whats strange, is that the damage appears to be in the center of the thread overall and I can't work out how that could happen.
I'm trying to work out if the frame is done for, or if it's worth trying a new bottom bracket. I don't like the look of the damaged thread in the frame though.
I'd appreciate your thoughts.