AMF headset bearing cup removal problem

Bike from the Dead · Oct 4, 2024

Does anyone have a method for removing headset bearing cups when they're butted up against the edge of this thicker portion of the headtube? I tried using my smallest punch to get these bearing cups out, but I just couldn't get it to work. I also tried using a thin screwdriver, but that didn't do any better.

Kevin B · Oct 4, 2024

I wonder if you could use an open end wrench and strike it from the underside?

idiotboy · Oct 4, 2024

small block of hard wood and a hammer, hit the outside edge

Bike from the Dead · Oct 4, 2024

idiotboy said:
small block of hard wood and a hammer, hit the outside edge

Worth a try. It won't damage the bearing cup, will it?

Captain Awesome · Oct 4, 2024

idiotboy said:
small block of hard wood and a hammer, hit the outside edge

^^^

I cut a notch in a block of wood that fits around the outside of the head tube and drive them out that way

Bike from the Dead · Oct 4, 2024

Captain Awesome said:
^^^

I cut a notch in a block of wood that fits around the outside of the head tube and drive them out that way

I could try that! Thanks!

rickpaulos · Oct 4, 2024

The cups are very sturdy. Bang away. The only reason to remove them is for new paint. I just took a vintage Murray apart an the frame was factory painted with the cups in place. Yes, paint in the cup where the ball bearings roll. I used to think the Chinese invented using paint as bearing lube but the BMA5 were doing that long ago.

Bike from the Dead · Oct 4, 2024

rickpaulos said:
The cups are very sturdy. Bang away. The only reason to remove them is for new paint. I just took a vintage Murray apart an the frame was factory painted with the cups in place. Yes, paint in the cup where the ball bearings roll. I used to think the Chinese invented using paint as bearing lube but the BMA5 were doing that long ago.

My reason to remove them is because I have a better bike that needs them.

I've got a Murray frame with painted bearing cups too. I don't know if I got those cups out...

Bike from the Dead · Oct 10, 2024

I actually used @Kevin B's suggestion and used the biggest adjustable wrench I had handy to knock out the bearing cups. Worked like a charm! A few good whacks with the hammer, and they were both out! Thank you everyone for your advice! I now know what to do with hard-to-remove cups from now on.

Kevin B · Oct 10, 2024

Bike from the Dead said:
I actually used @Kevin B's suggestion and used the biggest adjustable wrench I had handy to knock out the bearing cups. Worked like a charm! A few good whacks with the hammer, and they were both out! Thank you everyone for your advice! I now know what to do with hard-to-remove cups from now on.
View attachment 281520

That's a serious adjustable wrench

Bike from the Dead · Oct 10, 2024

Kevin B said:
That's a serious adjustable wrench

I'll have to ask Dad what he got such a big wrench for sometime. I call it the "I WASN'T ASKING!" wrench. I use it for those really stubborn nuts and bolts, and for freeing bottom bracket races from cranks.

Da Gas Man · Oct 10, 2024

Kevin B said:
That's a serious adjustable wrench

Or a really small hammer.

Nah, that is one big m effing adjustable wrench. Need two hands
on that at all times to avoid personal injury.

BDC · Oct 11, 2024

Bike from the Dead · Oct 11, 2024

BDC said:
View attachment 281691

The first part of that meme is exactly what I was referencing, but the rest of that is GOLD!

MattiThundrrr · Oct 19, 2024

BDC said:
View attachment 281691

Lol that's going in the Tips n Tricks thread

AMF headset bearing cup removal problem

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AMF headset bearing cup removal problem

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