The big hammer and shifter thread
- Mulger bill
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The big hammer and shifter thread
Postby Mulger bill » Sun Aug 11, 2013 2:43 pm
A workmate asked me to have a go at resurrecting a hard rubbish MTBSO for his grandson.
No problems so far except getting the rusty as hell 6x cluster off the rear wheel.
A couple hours, most of a can of WD40, one removal tool with borked splines and three skinned knuckles later and the mongrel still refuses to move.
I'm open to any and all suggestions right up to the aforementioned heavy hitters if necessary.
Thanks in advance.
Shaun
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Re: The big hammer and shifter thread
Postby mitzikatzi » Sun Aug 11, 2013 3:06 pm
To remove a freewheel once. I found I needed to use a socket (23mm?) over the "free wheel removal socket" and a long handled tool (600mm long). This seemed to give more leverage than using a large shifter.
a rattle gun?
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Re: The big hammer and shifter thread
Postby QuangVuong » Sun Aug 11, 2013 4:15 pm
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Re: The big hammer and shifter thread
Postby LG » Sun Aug 11, 2013 4:17 pm
If removal tool or the freewheel removal spline is knackered, there will be 2 pinholes on a bearing cover on the outside of the freewheel. Use a punch and tap these clockwise which will remove the outer bearing race. The outside half of the freewheel will now come off (with cogs attached), the inside half can be clamped in a vice and used as described above. Alternatively, a pipe wrench can be used on the remaining freewheel section (with added leverage) to unscrew it. I've had to do this a number of times, works a treat.
EDIT: Quang beat me by 2 minutes.
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Re: The big hammer and shifter thread
Postby Duck! » Sun Aug 11, 2013 5:33 pm
+1 to this. If that doesn't work, probably nothing will.LG wrote:A good solid workshop vice, insert removal tool, clamp in vice, spin wheel = extra leverage.
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Re: The big hammer and shifter thread
Postby Mulger bill » Sun Aug 11, 2013 10:27 pm
Looks like it's time to pull out the pin spanner in the morning. If that doesn't work, there might be a suitable wheel in the junkpile, not all the bikes Vinnies local send me are fit for getting into a safe, saleable condition. Not that they seem to get many these days
Thanks lads, keep it coming.
Shaun
London Boy 29/12/2011
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Re: The big hammer and shifter thread
Postby Duck! » Sun Aug 11, 2013 10:42 pm
Although not actually relevant here, it's worth noting for other players that cassettes & freewheels have slightly different splines. Cassette locknuts & the appropriate tool have a deeper spline than a freewheel. The cassette tool won't actually fit in a freewheel, hence not being relevant to this particular trouble.
Another idea that may be worth considering (with a tool in good shape) is with the setup previously mentioned, using a chainwhip a la cassette removal style, with a long pipe on the handle to gain more leverage. You may need an assistant to help keep the chainwhip in place.
Dismantling the cluster from its core isn't really going to achieve anything,'cos you'll still be left with the core of it stuck to the wheel, and that will be no easier to remove without the gears on it.
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Re: The big hammer and shifter thread
Postby Mulger bill » Sun Aug 11, 2013 11:03 pm
I'm having trouble visualising how a chainwhip will help here tho'. Once again nice and slow with small words for the idiot please.
I WILL get this mongrel off even if I end up borking the hub using an angle grinder. From the feel of the bearings it might be beyond help anyway. Methinks the bike never saw the inside of a shed or any other form of cover in its life. *sigh*
Shaun
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Re: The big hammer and shifter thread
Postby The 2nd Womble » Sun Aug 11, 2013 11:09 pm
Huge fan of booted RGers who just can't help themselves
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Re: The big hammer and shifter thread
Postby Mulger bill » Sun Aug 11, 2013 11:14 pm
Watch yer mouth sport or I'll sling a nail stuffed praty at yer scone, not my fault me old man chose the Scots spelling to honour one of his footy team mates.The 2nd Womble wrote:Meh, replace the mechanic. From all the moaning it sounds like it's probably some cheap import crap. Probably English.
The Poms do do a nice saddle and steel tube tho'...
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Re: The big hammer and shifter thread
Postby Duck! » Sun Aug 11, 2013 11:14 pm
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Re: The big hammer and shifter thread
Postby Mulger bill » Sun Aug 11, 2013 11:19 pm
What's the betting both LBS will not have the tool in stock 'cos "Nobody has those anymore."?
Looks like Amazon might be the go...
Shaun
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Re: The big hammer and shifter thread
Postby ldrcycles » Mon Aug 12, 2013 7:12 am
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Re: The big hammer and shifter thread
Postby bychosis » Mon Aug 12, 2013 8:46 am
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Re: The big hammer and shifter thread
Postby LG » Mon Aug 12, 2013 8:49 am
If you pull a screw on freewheel apart and remove the outer half, it is correct the inner section is still stuck on the hub. It is mostly smooth steel and dificult to grip, but there are a couple notches where the pawls sit and a large set of stilsons usually engages on these quite well. A cheater bar can assist turning the stilsons anticlockwise for removal as required. If you still have the freewheel removal tool for use, you could also use this concurrently with the stilsons. If this won't get it off, its stuck.
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Re: The big hammer and shifter thread
Postby Duck! » Mon Aug 12, 2013 9:08 am
Umm, yeah... Mental note, don't post technical stuff really late at night when the brain's gone a bit fuzzy. Scratch that suggesion, it will not work.LG wrote:I'm having a bit of trouble visualising what Duck is suggests for the chainwhip, maybe I'm a bit thick . For an older screw on freewheel all a chainwhip does is spin the ratchet mechanism backwards, cassette lockring removal is a diferent matter...
If you can't get enough leverage using the wheel as a spanner, then it's curtains.
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Re: The big hammer and shifter thread
Postby Mulger bill » Mon Aug 12, 2013 9:53 am
Thanks again lads, appreciate the help.
Shaun.
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Re: The big hammer and shifter thread
Postby FuzzyDropbear » Mon Aug 12, 2013 2:58 pm
Yup, best method ever, we had to remove a mates cassette which had been on his bike for ages, vice + spinning wheel worked a treat. We were a bit cautious because we were pretty convinced we were going to snap a spokeLG wrote:A good solid workshop vice, insert removal tool, clamp in vice, spin wheel = extra leverage. ....
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Re: The big hammer and shifter thread
Postby coyote » Mon Aug 12, 2013 7:20 pm
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Re: The big hammer and shifter thread
Postby Mulger bill » Mon Aug 12, 2013 7:33 pm
Irish Johnny wanted to go in hard first but I told him it was last resort. Trust me, now I've got the junkpile unit fettled, the mongrels days are numbered...coyote wrote:What the blokes in the Loco workshop did not get out the gas axe? First you heat, if that does not work, then you cut. There would be only two out comes, either it comes apart or it dies a slow painfull death.
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Re: The big hammer and shifter thread
Postby Saturnstarzz » Tue Aug 13, 2013 5:46 pm
If its 700c wheel I have Shimano Rs10 that has seized spoke nipple you can have Shaun not sure how you'd go with the cassette though.Mulger bill wrote:Irish Johnny wanted to go in hard first but I told him it was last resort. Trust me, now I've got the junkpile unit fettled, the mongrels days are numbered...coyote wrote:What the blokes in the Loco workshop did not get out the gas axe? First you heat, if that does not work, then you cut. There would be only two out comes, either it comes apart or it dies a slow painfull death.
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Re: The big hammer and shifter thread
Postby Mulger bill » Tue Aug 13, 2013 6:52 pm
The junkpile unit will do the trick, if I can get it round enough.
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Re: The big hammer and shifter thread
Postby LG » Sat Aug 17, 2013 9:47 am
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Re: The big hammer and shifter thread
Postby Mulger bill » Sat Aug 17, 2013 6:39 pm
Happy to report that the mongrel died a slow and painful death.
Nearly finished, needed new balls for the BB and rear hub, new chain and cables but wasn't as bad as first look indicated.
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Re: The big hammer and shifter thread
Postby Spiza » Sat Aug 17, 2013 9:32 pm
Angle grinders are awesome!
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