How to remove cranks and crank bearings?

Quoted message said:

I want to replace the crank bearings on my son's $79 bike, so I loosened the cranks but I can't
figure out how to separate the left crank from the right crank so that I can get new bearings in
there. It's so greasy I can't see my way around! Please advise.

Depends on the kind of cranks they are. They might be Ashtabula, one piece Euro, or 3 piece Euro,
for example.

These want different approaches. Are the crank arms bolted on to the spindle, or not?

--

_______________________ALL AMIGA IN MY MIND_______________________ ------------------"Buddy Holly,
the Texas Elvis"------------------
__________306.350.357.38>>[email hidden]__________

The crank arms are not bolted to the spindle by a bolt that is visible from the outside. Because of
all the grease in there, it would *appear* that the two crank arms are one with each other, but I
*think* that's not possible because the bearings couldn't be put on unless the cranks can be
separated.

"Eric S. Sande" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

I want to replace the crank bearings on my son's $79 bike, so I loosened the cranks but I can't
figure out how to separate the left crank from the right crank so that I can get new bearings in
there. It's so greasy I can't see my way around! Please advise.

Depends on the kind of cranks they are. They might be Ashtabula, one piece Euro, or 3 piece Euro,
for example.

These want different approaches. Are the crank arms bolted on to the spindle, or not?

--

_______________________ALL AMIGA IN MY MIND_______________________ ------------------"Buddy Holly,
the Texas Elvis"------------------
__________306.350.357.38>>[email hidden]__________

Quoted message said:

The crank arms are not bolted to the spindle by a bolt that is visible from the outside. Because of
all the grease in there, it would *appear* that the two crank arms are one with each other, but I
*think* that's not possible because the bearings couldn't be put on unless the cranks can be
separated.

Check this out and get back if it isn't what you need.

sheldonbrown.comopc.htmlOpen ↗

Good luck!

--

_______________________ALL AMIGA IN MY MIND_______________________ ------------------"Buddy Holly,
the Texas Elvis"------------------
__________306.350.357.38>>[email hidden]__________

That link is perfect. You are great. -Bruce in NC

"Eric S. Sande" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

The crank arms are not bolted to the spindle by a bolt that is visible from the outside. Because
of all the grease in there, it would *appear* that the two crank arms are one with each other,
but I *think* that's not possible because the bearings couldn't be put on unless the cranks can
be separated.

Check this out and get back if it isn't what you need.

sheldonbrown.comopc.htmlOpen ↗

Good luck!

--

_______________________ALL AMIGA IN MY MIND_______________________ ------------------"Buddy Holly,
the Texas Elvis"------------------
__________306.350.357.38>>[email hidden]__________