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Post subject: What are the differences between the 4l0 con-rods and ypvs?
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Billy  One-handed Stoppie! Joined: 12 Oct 2007 Total posts: 2198 Location: Sweden arise! |
Hi, i know the ypvs ones are wider, but how much wider? And are there anything else then that? Lenght? Hole sizes? 
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Posted: Sat Jun 14, 2008 4:45 am
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NORBO  RD/RZ Jedi Master Joined: 03 Aug 2003 Total posts: 5495 Location: Nottingham |
hey are 1,mm wider but thats it the smalls are the same with the 350lc , the 250 smalls a little smaller same as the 125lc . But it is posable to use an lc rod on a ypvs you need to use a lc bigend and thicker washers at ether sode to take up the slack. But obviousley there is no point to this as the ypvs crank is better with its 1mm wider bigend.
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Posted: Sat Jun 14, 2008 9:42 am
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BillyOne-handed Stoppie! Joined: 12 Oct 2007 Total posts: 2198 Location: Sweden arise! |
Ai thanks alot! 
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Posted: Tue Jun 17, 2008 10:09 am
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| jmw |
A thicker big end makes all the difference! 
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Posted: Tue Jun 17, 2008 10:11 am
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jante350RD/RZ Jedi Master Joined: 05 Aug 2003 Total posts: 5220 Location: Bergen, Norway |
It also has a little gap allowing better lubrication to the bearing. I believe this is mainly why its a bit wider...
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Posted: Tue Jun 17, 2008 11:16 am
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NORBORD/RZ Jedi Master Joined: 03 Aug 2003 Total posts: 5495 Location: Nottingham |
| jmw wrote: |
| A thicker big end makes all the difference! |
I bet thats what you tell all the girls . 
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Posted: Tue Jun 17, 2008 4:30 pm
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BillyOne-handed Stoppie! Joined: 12 Oct 2007 Total posts: 2198 Location: Sweden arise! |
| jante350 wrote: |
| It also has a little gap allowing better lubrication to the bearing. I believe this is mainly why its a bit wider... |
Are you talking about slots on the sides or the milled out cuts in the middle? The lc rods have both but you might refer to some other gap?
Btw, can you run with ypvs rods (and bearings ufcourse) on a lc crank but take one of the aluminum thrust washers away? I know for a fact that many cranks don't have them at all. What are their purpose, other then just break and trash everything around?
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Posted: Wed Jun 18, 2008 9:04 pm
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jante350RD/RZ Jedi Master Joined: 05 Aug 2003 Total posts: 5220 Location: Bergen, Norway |
Its a crack in the center of the big end, opposite the shaft! 
You can run a YPVS crank, if you mill out some more space in your crankcase, dont think the washer is thick enuff, and its there for a reason aswell...
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Posted: Wed Jun 18, 2008 9:08 pm
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| xen-uno Joined: 27 Jul 2005 Total posts: 845 |
Those thrust washers are steel ... probably a very hard spring steel.
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Posted: Thu Jun 19, 2008 1:00 am
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jante350RD/RZ Jedi Master Joined: 05 Aug 2003 Total posts: 5220 Location: Bergen, Norway |
| xen-uno wrote: |
| Those thrust washers are steel ... probably a very hard spring steel. |
Yep, to avoid the big end to rub and build up heat I suppose...
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Posted: Thu Jun 19, 2008 8:37 am
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