can anyone help on this matter. having my crank balanced but at ten ton it wouldnt come apart. the press can go to 50 ton
but as the flywheels are only cast they may break! anyone ever split the pressed cranks and if so what pressure did you go to? 
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| crank splitting https://ukbeg.com/forum/viewtopic.php?f=8&t=15332 |
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| Author: | muzza [ 22 Aug 2012 12:57 ] |
| Post subject: | crank splitting |
can anyone help on this matter. having my crank balanced but at ten ton it wouldnt come apart. the press can go to 50 ton but as the flywheels are only cast they may break! anyone ever split the pressed cranks and if so what pressure did you go to?
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| Author: | rik [ 22 Aug 2012 13:04 ] |
| Post subject: | Re: crank splitting |
Ten tons is nothing in 'pressed fit' terms... I've gone to nearly twenty to get a wheel bearing out! (but then it was probably a shitty old Renault) I have no experience with these cranks though, sorry... |
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| Author: | Adam [ 22 Aug 2012 14:16 ] |
| Post subject: | Re: crank splitting |
My 12 ton press wouldn't shift the flywheels on my JAP/Enfield when I wanted to fit a new big end (it worked ok on the pin of my TY trials bike when I fitted a new rod) I ended up taking to a factory that my mate works in. I've no idea what pressure they used - but I stood well back 
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| Author: | pash [ 22 Aug 2012 14:27 ] |
| Post subject: | Re: crank splitting |
I have pushed an XB pin through one web with a 20 ton press. Willybuell will tell you what he used. Check out his video... |
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| Author: | muzza [ 22 Aug 2012 16:56 ] |
| Post subject: | Re: crank splitting |
so do i tell the balance guy to go to 20ton? if it breaks its my fault and i have no crank 
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| Author: | Bonzo [ 22 Aug 2012 17:07 ] |
| Post subject: | Re: crank splitting |
muzza wrote: so do i tell the balance guy to go to 20ton? if it breaks its my fault and i have no crank I'd have assumed that if the balance guy makes a living doing this sort of thing that he'd have a rough idea of what's normal  
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| Author: | pash [ 22 Aug 2012 17:54 ] |
| Post subject: | Re: crank splitting |
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| Author: | muzza [ 22 Aug 2012 20:28 ] |
| Post subject: | Re: crank splitting |
Bonzo wrote: muzza wrote: so do i tell the balance guy to go to 20ton? if it breaks its my fault and i have no crank I'd have assumed that if the balance guy makes a living doing this sort of thing that he'd have a rough idea of what's normal "that aint no normal harley crank you got there" he said 10 kg was fairly light as it was and i cant have it properly balanced because of the knife and fork con rods. because the bit missing in the fork rod, throws the balance for a split second. shall we go to 15 ton? 
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| Author: | Nutah [ 22 Aug 2012 20:35 ] |
| Post subject: | Re: crank splitting |
http://www.darkhorsecrankworks.com/index.html http://www.powerglides.co.uk/crank_rebuild.php |
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| Author: | pash [ 22 Aug 2012 20:36 ] |
| Post subject: | Re: crank splitting |
As long as it is correctly supported, no problem. I think the cranks are the same press together affair as rubber mount Sportsters... Is it a good idea to take it to this guy? |
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| Author: | Maz [ 22 Aug 2012 20:47 ] |
| Post subject: | Re: crank splitting |
......or any guy IMO.....total waste of time/dosh.....so you end up with perfectly balanced flywheels etc........the big end mass around the pin remains the same BTW.....but unless you take into account the rod and piston weight at 45 degrees and the power stokes etc. that a 45 twin makes, it really doesn't matter how well the rotating mass is balanced.......plus you're gonna end up with worn/trashed/mis-aligned flywheels and crank pin by the time nobby has finished messing about with it 
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| Author: | pash [ 22 Aug 2012 22:03 ] |
| Post subject: | Re: crank splitting |
Maz wrote: .......plus you're gonna end up with worn/trashed/mis-aligned flywheels and crank pin by the time nobby has finished messing about with it 
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| Author: | WILLYBUELL [ 22 Aug 2012 23:54 ] |
| Post subject: | Re: crank splitting |
no probs http://youtu.be/jRV9TsnBG0I |
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| Author: | muzza [ 23 Aug 2012 08:42 ] |
| Post subject: | Re: crank splitting |
WILLYBUELL wrote: no probs http://youtu.be/jRV9TsnBG0I thats xb crap willy! this is proper stuff were on about
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| Author: | muzza [ 23 Aug 2012 08:55 ] |
| Post subject: | Re: crank splitting |
so we move on.......... powerglides seem to have done a couple of these before. |
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