Bottom bracket unscrew direction?

[dmgraham8]

Hello all,

Can anyone tell me which way I need to turn to unscrew my bottom bracket? It won’t budge!

 

[Chris S]

Your bike is a Marin so it will have a conventional bottom bracket.
The chainring side unscrews clockwise, i.e. the opposite way to normal.
The other side unscrews anticlockwise as normal.

 

[dmgraham8]

Your bike is a Marin so it will have a conventional bottom bracket.
The chainring side unscrews clockwise, i.e. the opposite way to normal.
The other side unscrews anticlockwise as normal.

Thanks Chris S Legendary member!

 

[dmgraham8]

Thanks Chris S Legendary member!

I’ll give it some welly

 

[C R]

I’ll give it some welly

Drive side is notorious for being difficult to undo, a long handled spanner, or something like a wheel brace will help.

https://www.screwfix.com/p/laser-telescopic-wheel-brace-500mm/13244

 

[Cycleops]

Thanks Chris S Legendary member!

That's why he's a legend 😄

 

[Blue Hills]

forgive my appalling ignorance (I really should know without asking)
is that a square taper BB?

 

[fossyant]

Yes square taper

 

[fossyant]

And cartridge. Best ones in my opinion.

 

[Blue Hills]

Yes square taper

In which case I would highly recommend one of these

https://sprockets.uk.com/tacx-t4415-splined-tool-for-shimano-taper-8-x-1-32mm-wrench/

though there are simpler more generic things using a screw-in bolt and big washer.

The normal BB tool is an abomination - almost guaranteed to slip with anything problematical.

 

[Darius_Jedburgh]

In which case I would highly recommend one of these

https://sprockets.uk.com/tacx-t4415-splined-tool-for-shimano-taper-8-x-1-32mm-wrench/

though there are simpler more generic things using a screw-in bolt and big washer.

The normal BB tool is an abomination - almost guaranteed to slip with anything problematical.

Nah. You don't need anything that fancy.
Put the tool in place. Get the original crank fixing nut and a big washer. Screw the nut in back and the big washer will hold the tool in place. One mighty heave and you can remove nut and washer.

 

[Blue Hills]

Nah. You don't need anything that fancy.
Put the tool in place. Get the original crank fixing nut and a big washer. Screw the nut in back and the big washer will hold the tool in place. One mighty heave and you can remove nut and washer.

agree there are other ways - i do have a bolt/washer thing as well.
But the tacx tool is good
and the normal tool an abomination.
unfit for purpose in my view, even with a BB that isn't especially difficult.
I'd always use a lock-on tool.

 

[oldwheels]

In the distant past I have had to resort to a blunt chisel and big hammer to get the thing to move.

 

[simongt]

When you re-assemble, recommend using copper anti-seize grease to lube up with.

 

[Darius_Jedburgh]

When you re-assemble, recommend using copper anti-seize grease to lube up with.

Copper grease is not a lube. Just the opposite. It will wreck your bearings.
Use some on the threads by all means as an anti sieze, but never ever use it as a lube.