stuck BB idea

[Mark J cleary]

I have this FSA BB that is stuck on the drive side cup. That would be a
reverse threaded external BB. It has been on the indoor trainer and
actually works but I want to get a new R7000 crankset.

I have tried the usual BB tool but it will not budge and I chewed the
outside of the notches trying. So now my thought is get a hose clamp and
put it around the BB cup. Then get it really tight. Then take a large
pipe wrench and set it up to grab the clamp threading as a point of
pressure and give it the big turn.

What do you thing of this idea. I don't try getting some penetrating oil
in around too much work. I just want to give this one big swipe with the
pipe wrench. If the frame goes south doesn't matter.

[AMuzi]

Post by Mark J cleary
I have this FSA BB that is stuck on the drive side cup. That
would be a reverse threaded external BB. It has been on the
indoor trainer and actually works but I want to get a new
R7000 crankset.
I have tried the usual BB tool but it will not budge and I
chewed the outside of the notches trying. So now my thought
is get a hose clamp and put it around the BB cup. Then get
it really tight. Then take a large pipe wrench and set it up
to grab the clamp threading as a point of pressure and give
it the big turn.
What do you thing of this idea. I don't try getting some
penetrating oil in around too much work. I just want to give
this one big swipe with the pipe wrench. If the frame goes
south doesn't matter.

If you don't care about the cup (and you shouldn't- it's
corroded at the thread and they are cheap), I'd saturate the
area with rust penetrant (we like GM Rust Penetrant but
there are many such products; Kroil, PB Blaster etc) and
ride the trainer. The motion will help penetration. Then
yes, external cups are very grab-able with a big pipe
wrench. What's the hose clamp doing? Not much I suspect.

If it doesn't move with moderate torque, saturate again and
ride another day then repeat.

You might also shoot some penetrant down the seat tube if it
is open to the BB.

[Zen Cycle]

Post by Mark J cleary
I have this FSA BB that is stuck on the drive side cup. That would be a
reverse threaded external BB.

Sorry if this is a dumb question, but you're sure it's reverse threaded?


It has been on the indoor trainer and

Post by Mark J cleary
actually works but I want to get a new R7000 crankset.
I have tried the usual BB tool but it will not budge and I chewed the
outside of the notches trying. So now my thought is get a hose clamp and
put it around the BB cup. Then get it really tight. Then take a large
pipe wrench and set it up to grab the clamp threading as a point of
pressure and give it the big turn.
What do you thing of this idea. I don't try getting some penetrating oil
in around too much work. I just want to give this one big swipe with the
pipe wrench. If the frame goes south doesn't matter.

[AMuzi]

Post by Zen Cycle

Post by Mark J cleary
I have this FSA BB that is stuck on the drive side cup.
That would be a reverse threaded external BB.

Sorry if this is a dumb question, but you're sure it's
reverse threaded?
 It has been on the indoor trainer and

Post by Mark J cleary
actually works but I want to get a new R7000 crankset.
I have tried the usual BB tool but it will not budge and I
chewed the outside of the notches trying. So now my
thought is get a hose clamp and put it around the BB cup.
Then get it really tight. Then take a large pipe wrench
and set it up to grab the clamp threading as a point of
pressure and give it the big turn.
What do you thing of this idea. I don't try getting some
penetrating oil in around too much work. I just want to
give this one big swipe with the pipe wrench. If the frame
goes south doesn't matter.

Good point.
The Habaneros are all BSC. The early Italian built LeMond
maybe not but Lemonds that I've worked on were BSC.

Outboard cups are generally well marked. OP ought to double
check that.

[Zen Cycle]

Post by AMuzi

Post by Zen Cycle

Post by Mark J cleary
I have this FSA BB that is stuck on the drive side cup. That would be
a reverse threaded external BB.

Sorry if this is a dumb question, but you're sure it's reverse threaded?
  It has been on the indoor trainer and

Post by Mark J cleary
actually works but I want to get a new R7000 crankset.
I have tried the usual BB tool but it will not budge and I chewed the
outside of the notches trying. So now my thought is get a hose clamp
and put it around the BB cup. Then get it really tight. Then take a
large pipe wrench and set it up to grab the clamp threading as a
point of pressure and give it the big turn.
What do you thing of this idea. I don't try getting some penetrating
oil in around too much work. I just want to give this one big swipe
with the pipe wrench. If the frame goes south doesn't matter.

Good point.
The Habaneros are all BSC.  The early Italian built LeMond maybe not but
Lemonds that I've worked on were BSC.
Outboard cups are generally well marked. OP ought to double check that.

And the newer ones usually have an arrow marked on them somewhere.

[Mark J cleary]

Post by Zen Cycle

Post by AMuzi

Post by Zen Cycle

Post by Mark J cleary
I have this FSA BB that is stuck on the drive side cup. That would
be a reverse threaded external BB.

Sorry if this is a dumb question, but you're sure it's reverse threaded?
  It has been on the indoor trainer and

Post by Mark J cleary
actually works but I want to get a new R7000 crankset.
I have tried the usual BB tool but it will not budge and I chewed
the outside of the notches trying. So now my thought is get a hose
clamp and put it around the BB cup. Then get it really tight. Then
take a large pipe wrench and set it up to grab the clamp threading
as a point of pressure and give it the big turn.
What do you thing of this idea. I don't try getting some penetrating
oil in around too much work. I just want to give this one big swipe
with the pipe wrench. If the frame goes south doesn't matter.

Good point.
The Habaneros are all BSC.  The early Italian built LeMond maybe not
but Lemonds that I've worked on were BSC.
Outboard cups are generally well marked. OP ought to double check that.

And the newer ones usually have an arrow marked on them somewhere.

No a modern BSA threaded BB and FSA BB bracket with external bearings.
It is reverse threaded. I tried my 8 inch pipe wrench but it would not
grip real good and slipping. I think I need and bigger pipe wrench. I
could cut it out but how is the is the next thought? Pull the crank and
put a hacksaw in the BB. I would need to take blade and run it through
the BB and attach and then saw?

[AMuzi]

Post by Mark J cleary

Post by Zen Cycle

Post by AMuzi

Post by Zen Cycle

Post by Mark J cleary
I have this FSA BB that is stuck on the drive side cup.
That would be a reverse threaded external BB.

Sorry if this is a dumb question, but you're sure it's
reverse threaded?
  It has been on the indoor trainer and

Post by Mark J cleary
actually works but I want to get a new R7000 crankset.
I have tried the usual BB tool but it will not budge
and I chewed the outside of the notches trying. So now
my thought is get a hose clamp and put it around the BB
cup. Then get it really tight. Then take a large pipe
wrench and set it up to grab the clamp threading as a
point of pressure and give it the big turn.
What do you thing of this idea. I don't try getting
some penetrating oil in around too much work. I just
want to give this one big swipe with the pipe wrench.
If the frame goes south doesn't matter.

Good point.
The Habaneros are all BSC.  The early Italian built
LeMond maybe not but Lemonds that I've worked on were BSC.
Outboard cups are generally well marked. OP ought to
double check that.

And the newer ones usually have an arrow marked on them
somewhere.

No a modern BSA threaded BB and FSA BB bracket with external
bearings. It is reverse threaded. I tried my 8 inch pipe
wrench but it would not grip real good and slipping. I think
I need and bigger pipe wrench. I could cut it out but how is
the is the next thought? Pull the crank and put a hacksaw in
the BB. I would need to take blade and run it through the BB
and attach and then saw?

Eight inch wrench?
If you cannot borrow a regular 30" wrench, slip a tube over
the end of it.

For recalcitrant BB cups, we mount the tool securely in the
cup then close the tool in a large well mounted vise. Turn
the frame and out it goes.

p.s. This might be best done in your trainer to avoid
collateral damage. You can push down on the wrench while
pushing up at the stem or under the front of the top tube.

[Frank Krygowski]

Post by AMuzi

Post by Mark J cleary

Post by Zen Cycle

Post by AMuzi

Post by Zen Cycle

Post by Mark J cleary
I have this FSA BB that is stuck on the drive side cup. That would
be a reverse threaded external BB.

Sorry if this is a dumb question, but you're sure it's reverse threaded?
  It has been on the indoor trainer and

Post by Mark J cleary
actually works but I want to get a new R7000 crankset.
I have tried the usual BB tool but it will not budge and I chewed
the outside of the notches trying. So now my thought is get a hose
clamp and put it around the BB cup. Then get it really tight. Then
take a large pipe wrench and set it up to grab the clamp threading
as a point of pressure and give it the big turn.
What do you thing of this idea. I don't try getting some
penetrating oil in around too much work. I just want to give this
one big swipe with the pipe wrench. If the frame goes south
doesn't matter.

Good point.
The Habaneros are all BSC.  The early Italian built LeMond maybe not
but Lemonds that I've worked on were BSC.
Outboard cups are generally well marked. OP ought to double check that.

And the newer ones usually have an arrow marked on them somewhere.

No a modern BSA threaded BB and FSA BB bracket with external bearings.
It is reverse threaded. I tried my 8 inch pipe wrench but it would not
grip real good and slipping. I think I need and bigger pipe wrench. I
could cut it out but how is the is the next thought? Pull the crank
and put a hacksaw in the BB. I would need to take blade and run it
through the BB and attach and then saw?

Eight inch wrench?
If you cannot borrow a regular 30" wrench, slip a tube over the end of it.

Absolutely!

In my heavy portable tool box, I have two pieces of square steel tubing:
one is 1.25" square, the other 1" square, nested inside the first so
they don't take too much space. When I need lots of torque, I slide one
over a wrench handle, then the other for a longer lever. If necessary, I
can slide something else into the end of the last tube.

I don't know if this would apply to Mark's setup, but Sheldon Brown's
site has an interesting way of removing old style bottom bracket cups
that are stuck. See https://www.sheldonbrown.com/tooltips/bbcups.html