serotta heads up cup removal

[bicycletricycle]

i just made a little set of tools that easily remove a cup from a heads up so if anyone needs this procedure done let me know.

[Marcy]

If you've got a chance, I"d love to see what you came up with.
That is not an eaxy procedure...
-- Marc

[Louis]

Yes, please do post some pics.

[fogrider]

you're such a tease! please show us!

[Gothard]

Find a soft (alloy) spacer that fits around the heads-up, and against the headset cup.
Place in a vise opened so that he heads-up does not touch (soft jaw liners), and the spacer is on the wise's jaws.

Or forget the vise and find a tube with an ID larger than the heads-up that still abuts against the headset cup

Hammer the heads-up out with the headset removal tool, or a suitable drift and hammer.
Done. 2 minutes.

[bicycletricycle]

Gothard's plan is pretty close to what i did. I didn't want to use a punch or drift because that always seems to damage the surfaces a little and also because the gap between the cup and heads up is so small that the approach angle to the lip would have been pretty obtuse making the job more difficult. The standard cup removal tools don't reach into the small gap so they are of no use.

What i came up with it pretty simple.

First piece of the tool is some tubing. the heads-up slips in and rests on the headset cup.

then i machined a small piece of aluminum that fits snugly into the ID of the headset. I tapped to 1/4 20 holes in the top .705 inches apart from each other. When you thread two 1/4 20 flat heads into the top they overhang just enough to grab the lip of the heads up.

To use the set up you first slide the aluminum plug into the headsup/headset from the headset cup side until the top of it is just below the small gap between the two. Then you thread the two 1/4 20 flat heads in from the other side. Put the whole shooting match into the piece of tubing and then use a hammer or press or vice to apply force to the back of the plug.

http://i975.photobucket.com/albums/ae236/bicycletricycle/IMG_1533.jpg
http://i975.photobucket.com/albums/ae236/bicycletricycle/IMG_1532.jpg
http://i975.photobucket.com/albums/ae236/bicycletricycle/IMG_1531.jpg

[mavic1010]

I know this is from like 10 years ago, but do you still have the pics on what you did since the links are dead...I’m trying to envision what you did so that I can remove a headset cup from a heads-up.

Thanks.