How to remove headset bearing 'cups'

[John the Canuck]

don't know the correct terms

managed to drift the bearing cup off the fork
but how do i remove these without damaging the tube..?
thanks

 

[Spoked Wheels]

You need one of these

 

[raleighnut]

or a foot of broomstick handle, just take your time and tap evenly side to side.

 

[sittingbull]

You can make your own tools, there are a few similar vids to this:

 

[John the Canuck]

You need one of these......................

thank you
what's it called so i can search for one..?

 

[John the Canuck]

You can make your own tools, there are a few similar vids to this:]

thank you
but i have no workshop/garage and absolutely no tools to help me 'make' things
and, living outside a small village, have to rely upon online shopping

a PITA really

 

[John the Canuck]

or a foot of broomstick handle, just take your time and tap evenly side to side.

having seen the vid - i have no way of installing the new races[ sp.?] so i'll leave them
the ball tracks are clean - just the exterior is rusty
cheers

 

[smokeysmoo]

A long flat head screwdriver, (you can wrap the end of it in a cloth if you prefer), and a hammer will get them out, no need to buy/make anything special IME.

Just take your time and drift them out. They might need a little persuasion to get them moving, but once they are they'll come out easily enough.

Then a block of wood can be used to drift them back in.

Both ways have worked for me loads of times

 

[djb1971]

A socket on an extension bar can be slid through the top/bottom cup and gently tapped around the inside to remove the old cups.

 

[sittingbull]

Any ideas on installing the fork crown race?
I've seen a vid using a length of plastic pipe and walloping it from above but have wondered if, alternatively, assuming the headtube races are true, if the fork crown race would square itself up by tightening the headset top nut (bearings presumably in place)?.........or would this simply damage the headset?

 

[djb1971]

Heat race, cool forks.

Or cut a tiny slot into the race if sealed bearings

 

[sittingbull]

Being inexperienced in such procedures I don't think I'd have the confidence, but thanks

 

[djb1971]

You could just buy the correct tool or get the lbs to do it

 

[John the Canuck]

You could just buy the correct tool or get the lbs to do it

as above...what is the 'correct tool' called

nearest LBS is Glasgow 25 miles
4 buses away.!

 

[John the Canuck]

A socket on an extension bar can be slid through the top/bottom cup and gently tapped around the inside to remove the old cups.

that's a good idea...i think a screwdriver handle dampens the impact shock wave from the hammer

I'll get brave and try that............
suppose it would be worth soaking in GT84 overnight.?