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#1
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Frozen Bottom Bracket...what to do?
Ive got a 15 year old Merckx (SLX) with a C-Record BB (early version, two
cups, bearing races, lock ring...not the sealed bearing kind) frozen to the frame. Ive given up on saving the BB, but I want to get it out without damaging the frame so I can install a new one. Any suggestions on how to do this? thanks, steve -- "The accused will now make a bogus statement." James Joyce |
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#2
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Frozen Bottom Bracket...what to do?
steve wrote:
Ive got a 15 year old Merckx (SLX) with a C-Record BB (early version, two cups, bearing races, lock ring...not the sealed bearing kind) frozen to the frame. Ive given up on saving the BB, but I want to get it out without damaging the frame so I can install a new one. Any suggestions on how to do this? Jerry in Vermont's weekend girlfriend will be able to suck it out if you ask her nicely. |
#3
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Frozen Bottom Bracket...what to do?
steve wrote: Ive got a 15 year old Merckx (SLX) with a C-Record BB (early version, two cups, bearing races, lock ring...not the sealed bearing kind) frozen to the frame. Ive given up on saving the BB, but I want to get it out without damaging the frame so I can install a new one. Any suggestions on how to do this? Take it to a good bike shop. OK, what exactly is "frozen"? Lock ring? Fixed cup? Adj. cup? Aluminum cups or steel? --D-y |
#4
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Frozen Bottom Bracket...what to do?
Donald Munro wrote: steve wrote: Ive got a 15 year old Merckx (SLX) with a C-Record BB (early version, two cups, bearing races, lock ring...not the sealed bearing kind) frozen to the frame. Ive given up on saving the BB, but I want to get it out without damaging the frame so I can install a new one. Any suggestions on how to do this? Jerry in Vermont's weekend girlfriend will be able to suck it out if you ask her nicely. No sucking, its all in the tounge. Barring that, I would use a sawzall in the downtube and seat tube. It will come right off. |
#5
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Frozen Bottom Bracket...what to do?
If it is the adjustable cub try using liquid wrench. If not you try
ammonia, sometimes this works with frozen seat posts. Your other option is to try and use a pipe wrench on the adustable cup assuming there is enough surface for the wrench to grab hold of. Fixed cup The more likely scenario is that the fixed cup is frozen. Find a bike shop that has a fixed cup reomoval tool. The other option is too find someone who has a machinists vise like a Wilton. Put the fixed cup in the vise and this may work as well. steve wrote: Ive got a 15 year old Merckx (SLX) with a C-Record BB (early version, two cups, bearing races, lock ring...not the sealed bearing kind) frozen to the frame. Ive given up on saving the BB, but I want to get it out without damaging the frame so I can install a new one. Any suggestions on how to do this? thanks, steve -- "The accused will now make a bogus statement." James Joyce |
#6
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Frozen Bottom Bracket...what to do?
wrote: If it is the adjustable cub try using liquid wrench. If not you try ammonia, sometimes this works with frozen seat posts. Your other option is to try and use a pipe wrench on the adustable cup assuming there is enough surface for the wrench to grab hold of. Fixed cup The more likely scenario is that the fixed cup is frozen. Find a bike shop that has a fixed cup reomoval tool. The other option is too find someone who has a machinists vise like a Wilton. Put the fixed cup in the vise and this may work as well. The fixed cup tool you are looking is specifically designed to remove fixed cups. I believe bicycle research or Hozan made this tool. If all else fails then you may have to use something like liquid nitrogen or liquid helium. I have used liquid freon to remove die that another bike shop got the die stuck on. steve wrote: Ive got a 15 year old Merckx (SLX) with a C-Record BB (early version, two cups, bearing races, lock ring...not the sealed bearing kind) frozen to the frame. Ive given up on saving the BB, but I want to get it out without damaging the frame so I can install a new one. Any suggestions on how to do this? thanks, steve -- "The accused will now make a bogus statement." James Joyce |
#7
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Frozen Bottom Bracket...what to do?
steve wrote: Ive got a 15 year old Merckx (SLX) with a C-Record BB (early version, two cups, bearing races, lock ring...not the sealed bearing kind) frozen to the frame. Ive given up on saving the BB, but I want to get it out without damaging the frame so I can install a new one. Any suggestions on how to do this? thanks, steve -- "The accused will now make a bogus statement." James Joyce lube + monkey wrench + cheater bar(4' pipe slipped over the handle of the monkey wrench) I recently had the same problem with a frame I bought off Ebay. I plugged up the holes in the BB and then poured WD40 down the seat tube and let it soak for a few days. Then went after it with a monkey wrnech and cheater bar. I almost gave up, but it finally broke free. |
#8
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Frozen Bottom Bracket...what to do?
wrote in message ups.com... The fixed cup tool you are looking is specifically designed to remove fixed cups. I believe bicycle research or Hozan made this tool. If all else fails then you may have to use something like liquid nitrogen or liquid helium. I have used liquid freon to remove die that another bike shop got the die stuck on. So _that's_ what happened to the ozone layer. |
#9
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Frozen Bottom Bracket...what to do?
1. Soak with penatrating oil. wait 2 days.
2. Stick entire frame in a walk in freezer or similar. 3. get proper tools and turn them in the right direction. 4. take frame out of freezer and heat center of BB (the bike frame with a propane torch, not the spindle!) as you turn tool in proper direction. the frame will expand at a quicker rate than the fixed cup and allow you to get the piece off. if the fixed cup gets warm, repeat the freezing. the idea is to go after the temp difference between frame and cups. |
#10
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Frozen Bottom Bracket...what to do?
I don't recommend using a torch since you will wreck the paint. If the
adjusting cup comes off then the fixed cup can be removed. The secial fixed cup removal tool will it. It's a essciall a bolt with a nut that jams into the fixed cup. I suppose one could make one with a bolt. The nut and bolt would probably have a left hand thread to prevent it from loosening. wrote: 1. Soak with penatrating oil. wait 2 days. 2. Stick entire frame in a walk in freezer or similar. 3. get proper tools and turn them in the right direction. 4. take frame out of freezer and heat center of BB (the bike frame with a propane torch, not the spindle!) as you turn tool in proper direction. the frame will expand at a quicker rate than the fixed cup and allow you to get the piece off. if the fixed cup gets warm, repeat the freezing. the idea is to go after the temp difference between frame and cups. |
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