2008 YZ450f rod broke


37 replies to this topic
  • RobbieM16

Posted May 26, 2011 - 06:19 PM

#21

Heres some pics I got.. Posted Image
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  • crf450319

Posted May 27, 2011 - 12:45 PM

#22

Does anybody know any other machine / welding shops in Canada that could fix my case to cut down shipping and what not?


I don't know of any shop in particular, but if you're just looking at repairing the damage shown in the pics I'd guess there's a shop in BC that could do the work. The closer you are to a big city, the better chance you've got of finding a place that can do the work properly. There are 3 shops here in MB that I'd trust to repair that sort of damage, one of them is 5 min from my house.

What did the people at Engine Dynamics quote you for a repair price, did they give you any sort of ball-park estimate ? What are you looking at as far as shipping cost, to and from ?

The shop that's close to my house builds custom performance engines for Service Honda's 500AF/crf450 conversion bikes (their primary business is building high performance car engines), I can't remember exactly what they do for Service Honda but I've personally seen SH's stuff in their shop. Kinda weird that a shop in Indiana sends their stuff all the way up here, but that says a lot about the quality of their work. Here's a link to their website :

http://www.millareng...x?PageName=Home

  • Weapon X

Posted May 27, 2011 - 01:56 PM

#23

I 2nd that on millar or sun and snow in portage la prarie

  • MNellis

Posted May 27, 2011 - 06:35 PM

#24

Will the 426 cases work?

  • grayracer513

Posted May 27, 2011 - 07:21 PM

#25

Will the 426 cases work?


Not even close.

  • RobbieM16

Posted May 27, 2011 - 09:42 PM

#26

Turns out the right case is completely ****ed, or so I think. So looks like I'll be on the lookout for a right case, possibly for the left too if I can find some used soon..

Might just end up buying new cases from mrcycles.com for $558 for the set if worse comes to worse.. I put the motor back together for now until I get the parts, don't need it all appart in my shop right now considering I know what exactly is needed for the motor now.. Also turns out a tranny gear is cracked, , another 50 bux

Wondering if anyone knows for sure if or what crankcases are interchangable with the 2008?

Will upload pictures later,

Rob

  • crf450319

Posted May 28, 2011 - 06:16 AM

#27

Nice looking bottom end (no, not that kind of bottom end guys) from an '08 on E-bay :

http://cgi.ebay.com/...=item415767111d

and I'm guessing the matching cylinder & piston from the same bike :

http://cgi.ebay.com/...=item4153fe17af

$1450 for the parts you need, if you'd pay asking price - he's got the "make offer" thing going. I looked through his other auctions and it looks like he parts just about everything out.

  • grayracer513

Posted May 28, 2011 - 09:07 AM

#28

Wondering if anyone knows for sure if or what crankcases are interchangable with the 2008?


'06-'09 YZ450F will work.

  • RobbieM16

Posted May 28, 2011 - 10:16 AM

#29

'06-'09 YZ450F will work.


Is this for sure? I called a local dealership and they told me 06 - 2011 yz450f except the 2010, and 06 - 2011 wr450s would work

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  • crf450319

Posted May 28, 2011 - 10:38 AM

#30

Is this for sure? I called a local dealership and they told me 06 - 2011 yz450f except the 2010, and 06 - 2011 wr450s would work


As we all know, the '10 & '11 yz450's have the intake/exhaust sides of the engine flipped around. I would be very surprised if the cases were interchangeable from your '08 to an '11 - In fact, I'd be willing to put money on them not being the same.

I can't seem to find a parts fiche for an '11, wonder why that is ?

2011 wr450f case part # 2S2-15100-11-00

2008 yz450f case part # 2S2-15100-21-00

Different part numbers between the wr/yz cases. With something that costs as much as cases do, I wouldn't fart around with different years. I'd stick with the '06-'09's... but that's just me. If the dealerships in BC are anything like the dealerships here, they're run by a bunch of morons and the staff at the parts counter are much worse.

  • grayracer513

Posted May 28, 2011 - 11:33 AM

#31

Is this for sure? I called a local dealership and they told me 06 - 2011 yz450f except the 2010, and 06 - 2011 wr450s would work

Since the 2011 is identical to the 2010, and the 2010 doesn't interchange.... :smirk:

'06-'09 YZ450F and '07-'11 WR450. The 2010-11 are totally different. The '06 WR450 is the same as the '05. The WR didn't start using the Gen2 engine with the aluminum frame until '07. The YFZ quad went to Gen2 in '09, but all of the hard points on the quad cases are different, so none of them are usable in a motorcycle.

And yes, that's for sure.

  • RobbieM16

Posted May 30, 2011 - 05:07 PM

#32

OK right on guys,, I picked up a 2006 YZ450f right case on eBay for 106 bux shipped.. Its in the mail as we speak, and tomorrow I'm ordering the rest of my parts :smirk:

  • crf450319

Posted May 30, 2011 - 07:37 PM

#33

Crankcases are sold in pairs only because they are line bored bolted together as a set. You should not ever mix halves.


OK right on guys,, I picked up a 2006 YZ450f right case on eBay for 106 bux shipped.. Its in the mail as we speak, and tomorrow I'm ordering the rest of my parts :smirk:


Did you get both cases, or just the right ? I'm interested to find out what happens if you bolt your '08 left case to an '06 right case. :smirk:

  • RobbieM16

Posted May 30, 2011 - 08:58 PM

#34

Did you get both cases, or just the right ? I'm interested to find out what happens if you bolt your '08 left case to an '06 right case. :smirk:


Yea I did buy just the right,, couldn't find a set

  • RobbieM16

Posted May 30, 2011 - 09:09 PM

#35

Is something bound to go wrong doing such or?..

  • crf450319

Posted May 31, 2011 - 04:41 PM

#36

As grayracer513 said, the cases are line bored while bolted together at tha factory. That way any shaft that runs from one case through the other is perfectly lined up (that's my guess anyway), if you mix cases I'm guessing there may be some internals that won't be lined up how they should be. On the other hand, it might be fine ? I don't know, I'm not the person to ask on the subject..

Have you split the cases yet, found any other damage ?

  • Polar_Bus

Posted June 01, 2011 - 02:15 AM

#37

Did you get both cases, or just the right ? I'm interested to find out what happens if you bolt your '08 left case to an '06 right case. :smirk:


You better pray Yamaha has EXTREMLY tight machining tolerences from year to year. Crankcases are always machined in matched pairs to assure flatness, and "crank centerline trueness" . Me personally would NEVER mate mismatched used case halves after spending upwards of a grand on new engine parts....

  • RobbieM16

Posted June 01, 2011 - 01:36 PM

#38

Ya one of my tranny gears is cracked, and that one right case is hooped.. I guess it was a mistake buying just the one 06 case, but oh well. I've put a hold on the parts and such until I can find a set of cases. Don't wanna fool around with my grand in new parts with mix matched cases..





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