striped bottom bracket

skellator3

hi i have an old winter bike (Steel Frame) this thing is over 20 years old, and when i serviced it this week i have found that the threads on the drive side of the bottom bracket housing has basicly rusted and will no longer hold the bottom bracket tight when i load it up it jumps out the thread. the non drive side is ok, any ideas on what i can do or is the frame going to the great scrap yard for dead bikes

gundersen

personly I would take it to my lbs and get the threads recut
that would help a lot
if that was not enough I would use locktite

if you like the frame you could get someone to weld a couple of lines before you you get the threads recut

Monty Dog

As well as the above, tThere are also some BBs that don't require BB threads - depends on the model of crank you want to fit.

skellator3

its just an old square taper nothing to fancy, so would i be better geting a few lines of weld laid down and get it re taped

Monty Dog

Easiest would be to get it re-threaded at your LBS and use Loctite or a few wraps of PTFE tape to hold it in place. Welding / re-tapping is far more difficult as you'd need to jig the frame and mill the weld before cutting the thread.

ride_whenever

Bollocks to all this get it re-tapped. There isn't the metal there to do it properly, helicoiling could work but you'll quite possibly struggle to get one that big, although i'm not sure.

Best bet is a threadless bottom bracket, shouldn't be too expensive.

skellator3

where can i get a threadless bottom bracket, sqr taper 127mm overall length. i agree that there is not enough metal to retap threads