Fitting cartridge BBs

I was reading the Park Tools website regarding fitting cartridge bottom
brackets and came across the following statement -

"Secure removable ring to at least 360 inch pounds using torque wrench. If
you are using hand wrench, and are holding the wrench 6 inches from axle,
apply 60 pounds of pressure. which is tight. By securing removable ring, you
are securing the other side at the same time. Removable ring pushes against
fixed flange."

The suggestion being that after screwing the cartridge and adapter by hand
it is only necessary to torque the adapter which tightens the cartridge at
the same time(presumably because they are opposite threads).

Is this correct? It would be handy if it was since my torque wrench only
works for righthand threads but the Shimano instructions suggest that both
the cartridge and adapter should be tightened.

Any thoughts?
PJay.

I'm not sure the advice is good for all BBs. What make and model do you
have?

~PB

Paul Davis wrote:
/snip
Is this correct? It would be handy if it was since my torque wrench
only works for righthand threads but the Shimano instructions suggest
that both the cartridge and adapter should be tightened.

Ideally, I reckon both sides should be fairly tight but you really don't
need a torque wrench for that.

In any case, with cartridge units, quite often you'll find the bearings
start to bind before it's as tight as you'd like, probably caused by poor
shell facing.

~PB

In article , Pete Biggs
wrote:
Ideally, I reckon both sides should be fairly tight but you really
don't need a torque wrench for that.

I use a 12" stillson with a sutable adapter and pull it up as tight
as possible.

In any case, with cartridge units, quite often you'll find the
bearings start to bind before it's as tight as you'd like, probably
caused by poor shell facing.

Not in my experience.

--
A T (Sandy) Morton
on the Bicycle Island
In the Global Village
http://www.millport.net

Sandy Morton wrote:

In any case, with cartridge units, quite often you'll find the
bearings start to bind before it's as tight as you'd like, probably
caused by poor shell facing.

Not in my experience.

I've had bad luck then. Anyone fitting cartridge BB's should tighten a
little at a time and keep checking the spindle turns freely, in case they
experience the same problem.

~PB

In article , Pete Biggs
wrote:
Not in my experience.

I've had bad luck then. Anyone fitting cartridge BB's should
tighten a little at a time and keep checking the spindle turns
freely, in case they experience the same problem.

I think you may have been unlucky or used a poorly made one. I've
fitted 27 this year so far and the only problem has been when I
forget to loosen the cable guide screw:-(

I'll post the make if anyone is interested.

--
A T (Sandy) Morton
on the Bicycle Island
In the Global Village
http://www.millport.net

Assuming the cartridge unit screws in from the right (i.e. the adapte
is on the left) and is of the flanged type:

There is no minimum torque requirement for the right side; just scre
it in until the flange is snug against the bottom bracket shell. Th
left hand side needs to be tightened to the specified torque.

Ia

--
wheelsgoround

Sandy Morton Wrote:
I've fitted 27 this year so far


Golly; you wear them out quickly. :-)


Ia

--
wheelsgoround

On 22/8/04 10:01 am, in article
, "wheelsgoround"
wrote:


Sandy Morton Wrote:
I've fitted 27 this year so far


Golly; you wear them out quickly. :-)

That's because his bikes do probably over a hundred thousand miles a year
;-)

...d

That's because his bikes do probably over a hundred thousand miles a year
;-)


Respect. Nearly 300 miles a day.

On such a small island too. :-)