Old Dura-ace problem

[snapper]

I have a late 1980s Dura-ace rear wheel that I want to change the 7 speed cassette on. I got the locking small cog off but the rest of the cogs refuse to budge. I have already applied the big hammer approach as vigorously as I dare. Does anyone know how this should come apart? Should they just slide off? Threaded? I would hate to destroy this smooth rolling hub.

[rciracing]

Did you try placing a flat head screwdriver betweent the hub and cassette...and pry open? Also some of the older stuff is threaded although I don't think yours would be old enough but you could always try to unthread it.

[walsh]

Can't really help, but the last Master has some resources:
http://www.sheldonbrown.com/dura-ace.html

[punga]

I don't have any direct experience with the Dura-Ace stuff, but if it's Uniglide that means its splined and not threaded. If you're not able to get it to slide off, it could be if that the sprockets are digging into the freehub body.

p!

[Dirt]

Pictures would help here. It may be that you have a 7-speed freewheel instead of a freehub.

[OverStuffed]

I don't have any direct experience with the Dura-Ace stuff, but if it's Uniglide that means its splined and not threaded. If you're not able to get it to slide off, it could be if that the sprockets are digging into the freehub body.

p!

This is most likely. If the cassette is made up of an assembly of cogs, you can use two chainwhips to free them up one at a time, or use your bike and one chainwhip.

[g_barr]

Park tools has three on-line tutorials under Cassette and Freewheel Service (http://www.parktool.com/repair/byregion.asp?catid=4&imageField2.x=15&imageField2.y=9).