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| MaybeGuy |
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 MaybeGuy Super Spammer

Joined: 12 Mar 2007 Karma :     
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 Posted: 19:38 - 20 Dec 2008 Post subject: balancing a crankshaft |
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how would i go about doing this?
would i:
set the crankshaft up in a lathe on 2 dead centres, then file bits off the weights until it didnt turn no matter what the angle? ____________________ Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith
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| hmmmnz |
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 hmmmnz Super Spammer

Joined: 22 Aug 2006 Karma :   
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 Posted: 21:03 - 20 Dec 2008 Post subject: |
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i do it with a couple of rollers on easch end of the crank shaft,
with a marker i put a mark on the crank shaft where its out of allignment.
then whack it with a hammer no really
its one of those jobs that really is best if you just lightly put together the crank with new crank pins (you have new crank pins i take it) ne big end bearings and the conrods hen take it to a decent old bike shop with a press, and get them to press it all back together,
chances are they will get it pritty damn close when the do it that it will only need a few taps to allign it perfectly ____________________ the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches |
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| Pete. |
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 Pete. Super Spammer

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| MaybeGuy |
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 MaybeGuy Super Spammer

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| hmmmnz |
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 hmmmnz Super Spammer

Joined: 22 Aug 2006 Karma :   
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 Posted: 21:47 - 20 Dec 2008 Post subject: |
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get some one else to do it, its not an easy job,
ive never done it or a crank with more than 1 cylinder,
and all the ones ive done it on arn't highly strung like the engine you want it done to,
send it away, and then check it before you pu it back together,
or ask one of your work mates, if you have all the stuff to do it at work, then surely some one there knows what they are doing??
you don't!! watch and learn  ____________________ the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches |
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| sickpup |
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 sickpup Old Timer

Joined: 21 Apr 2004 Karma :     
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| MaybeGuy |
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 MaybeGuy Super Spammer

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| hmmmnz |
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 hmmmnz Super Spammer

Joined: 22 Aug 2006 Karma :   
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 Posted: 22:56 - 20 Dec 2008 Post subject: Re: balancing a crankshaft |
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whatever clever machine he has, i'll have it at work
You have a dynamic crank balancer small enough for a bike crank at work?
do you know where i work?
answering a question with a question.. i would like to question that  ____________________ the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches |
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| sickpup |
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 sickpup Old Timer

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| MaybeGuy |
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 MaybeGuy Super Spammer

Joined: 12 Mar 2007 Karma :     
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 Posted: 23:23 - 20 Dec 2008 Post subject: |
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aha, so so a trick question then?
how big of you.
why question me about something i dont know much about? i know that crankshafts are made where i work for both IC engines, and positive displacement pumps etc, so there would be no reason for it NOT to accomadate a crankshaft this size. ____________________ Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith
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| iooi |
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 iooi Super Spammer

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| Ariel Badger |
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 Ariel Badger Super Spammer

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| sickpup |
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 sickpup Old Timer

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| MaybeGuy |
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 MaybeGuy Super Spammer

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| sickpup |
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 sickpup Old Timer

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| MaybeGuy |
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 MaybeGuy Super Spammer

Joined: 12 Mar 2007 Karma :     
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 Posted: 13:30 - 21 Dec 2008 Post subject: |
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i should think so,
like i said before, they make compressors as well as ICE's, and all sorts of other shit. the compressors have cranks of similar size to the RD350 crank, and i would imagine they are adjustable to some degree?
@ arial 1930
i dont know if its out of true yet, but if it is out, im interested to know how they are balanced. ____________________ Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith
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| G |
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 G The Voice of Reason
Joined: 02 Feb 2002 Karma :     
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 Posted: 14:11 - 21 Dec 2008 Post subject: Re: balancing a crankshaft |
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On the subject, I've got a DRZ engine with a knackered big-end bearing.
Does anyone know the likely cost of getting a new bearing on?
I don't have the tools at my work, what with being in a single office with about 13 Macs and a couple of Dells . |
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| MarJay |
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 MarJay But it's British!

Joined: 15 Sep 2003 Karma :     
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 Posted: 16:15 - 21 Dec 2008 Post subject: Re: balancing a crankshaft |
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| G wrote: | On the subject, I've got a DRZ engine with a knackered big-end bearing.
Does anyone know the likely cost of getting a new bearing on?
I don't have the tools at my work, what with being in a single office with about 13 Macs and a couple of Dells  . |
Appleby's charged about £150 to rebuild my RGV crank... ____________________ British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another. |
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 G The Voice of Reason
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| Pete. |
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 Pete. Super Spammer

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| sickpup |
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 sickpup Old Timer

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| Ariel Badger |
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 Ariel Badger Super Spammer

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Old Thread Alert!
The last post was made 17 years, 53 days ago. Instead of replying here, would creating a new thread be more useful? |
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