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May 9th, 2015, 08:37 PM   #101
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Bearing bit in oil plug

Hi forum my berg had some oil spilling and I had to much oil (halfway in the window). So I think It spat it out the weephole.
Any how I thought to check the water pump seals on the oil side to make sure
So drained the oil and found a small half circle bearing race part with 3 small half holes for ball bearing and very small, no bigger than 10mm in dia if complete circle.
Along with some shavings on the magnet.
I have not stripped the engine so not savvy on the internals so please any of you experts know what this might be as the big bearing are huge and this is tiny in comparison.
Kind regards
Nick
USA Seattle
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May 9th, 2015, 08:47 PM   #102
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do you have a picture?

can pull the clutch side cover off and the rocker cover pretty easy

manual found here

2005 Husaberg - Workshop Manual
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May 9th, 2015, 09:35 PM   #103
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Clutch cover is off and I will take the rocker covers off tomorrow
No pictures I went to find it but It was so small I will look on the oil rags to fin it tomorrow it was so small it would be around 10mm dia and had 3 balls in the 1/3 segment
I looked at the engine manual and the only thing that looked close was the small bearing on the outside of the clutch rod where it met the basket I doubt it would make or through to the other side so not sure
It could be the outer ring of a needle bearing

Last edited by Nicklewis; May 9th, 2015 at 09:41 PM. Reason: More info
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May 28th, 2015, 12:23 AM   #104
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Originally Posted by bushmechanic View Post
the majority of failures in Australia were the 550 engine

the crank is heavier than the 628 crank and also has a smaller pin, the engine revs more as well

so compared to the 628 you have more forces spreading the crank, less stiffness to limit the spread, typically less endfloat and SKF rollers with sharp radii

Orangeberg worked out the NTNs work better and stands by them as a fix.

this is also the consensus among the RFS engine builders, in fact the NTN bearings were used in the RFS engines as an OEM part for some years so they get to see the difference on a larger scale
Love your work Bushmechanic
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September 19th, 2015, 06:15 PM   #105
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Got this bike cheap, knowing it needed to be torn apart before riding it.

What's wrong with these photos aside from the totally screwed bearing race.

This is only the right side main bearing... need to get a 30mm socket before I can pull the other side out.

Attached Thumbnails
Definative main bearing thread-img_20150919_202937.jpg   Definative main bearing thread-img_20150919_202946.jpg  
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September 19th, 2015, 09:13 PM   #106
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Ntn inner and skf outer the best of both worlds
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September 19th, 2015, 10:01 PM   #107
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Yep... Pretty silly. I've got some new KTM boxed NTN bearings waiting to go in...

Anyone know where to get a rod for a good price for a 550? I think its OK for now, but can't see it being too far off. Cylinder is scored up too, haven't looked at the piston yet.
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September 20th, 2015, 12:13 AM   #108
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interesting read .
can someone tell me if there is more to this than the fact it got welded ?
"Was rebuilt because the previous owner was super fussy and he wanted to up grade the crank to the motard race spec by getting it welded."

as in was the motard engine different oem ? or motard people decided welding them was the final solution

06 fe550

cheers
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September 20th, 2015, 04:29 AM   #109
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Originally Posted by spanner View Post
Ntn inner and skf outer the best of both worlds
other way round is OK; SKF inner and NTN outer gives 58 microns radial play instead of 46 (NTN inner and outer) and gives you the nice rounded roller end radius.

lachlan the welded pin just makes the assembly slightly stiffer .. they still flex like crazy but it is impossible for the crank to twist on a welded pin.

welded is better but not always good enough also very tricky to retain proper alignment during welding.

Borg; ask orangeberg about a rod for the 550 ORANGEBERG back in the workshop
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Last edited by bushmechanic; September 20th, 2015 at 06:13 AM.
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September 20th, 2015, 01:50 PM   #110
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Laser welding works good, no movement when done.
Costs about $100.
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