crank shaft end play adjustment?

willestreet

It will pay you dividens to set it up a little loose & keep an eye on it.

0.35 should be more than enough,did you check it when it was new?

I can tell you since I was made aware of of the problem in 05 I have

checked all bikes I have delivered to my customer's & they seem to be at 0.15 + / - ?

However these bike's are used for dirt use & that seem's to be ok.

Please keep us informed on your finding's. Thank you!

williestreet said:

Are the larger clearances because of Husabergs choice of different bearing type.

Click to expand...

I always thought the SMR used the same roller as the Berg ??
NJ206ECP/C3HVC058 is speccied for both the SMR and Berg

Just to confuse the issue, on some models (EXCs)it seems NJ206 ET2XCS46 get speccied, whereas the SXs share the SMRs roller NJ206ECP/C3HVC058 - but only the SMR uses the ball/roller, the SX is roller/roller as per EXCs

HOWEVER- The berg uses them on both sides, wheras the SMR uses a ball AND roller config I believe ?? (as a lot of guys on this site have tried also-)


Husaberg end float specs increase as stroke increases-
ie the 550 is specced at .45-.55
the 650 is specced at .55-.65

Just what end float does KTM specify for a ball/roller combo (bearing in mind the end float is restricted by whatever is built into the ball bearing )???

Whew. Now Im starting to confuse myself, not just the people reading this...... :lol:

AUSBERG said:

williestreet said:

Are the larger clearances because of Husabergs choice of different bearing type.

Click to expand...

Click to expand...

I always thought the SMR used the same roller as the Berg ??
NJ206ECP/C3HVC058 is speccied for both the SMR and Berg

Just to confuse the issue, on some models (EXCs)it seems NJ206 ET2XCS46 get speccied, whereas the SXs share the SMRs roller NJ206ECP/C3HVC058 - but only the SMR uses the ball/roller, the SX is roller/roller as per EXCs

HOWEVER- The berg uses them on both sides, wheras the SMR uses a ball AND roller config I believe ?? (as a lot of guys on this site have tried also-)


Husaberg end float specs increase as stroke increases-
ie the 550 is specced at .45-.55
the 650 is specced at .55-.65
these specs being for a roller/roller combo

Just what end float does KTM specify for a ball/roller combo(SMR) (bearing in mind the end float is restricted by whatever is built into the ball bearing )???

Whew. Now Im starting to confuse myself, not just the people reading this...... :lol:

A bit of searching on this site will reveal a LOT of discussion on the subject of main bearing and crankshaft failure....lots of info to be found !!

Late model "Big Inch" HD engines use roller main bearings not much larger then that of a modern Husaberg. 8O

Accurate axial bore alignment, proper interference fit and correct float combined with a rigid crankshaft (read no CB) is the "E" ticket to longevity regarding adverse conditions.

Do a search as all is well documented.

Cheers,
Dale

williestreet said:

Thanks, I have been using the search function and am finding alot on the clearance and bearing selection as you suggested.

I didn't check it when new. I didn't know of this issue when the bike was purchased or I would have checked it and probably welded the crank at that time.

My bigger question was has anyone found a crank shimmed on the opposite side than what was specified.

Mine was shimmed on the clutch side and everything I can find says Bergs and KTMs' must be shimmed on the ignition side. Any thoughts?

Nice to find a site where the majority of talk is not about cosmetics. Who cares how it looks. I care how it works

Thanks
John Russell

Click to expand...

Hi John,
I shim both sides as required.

Your timing is great as we had a spell where the talk was of "Blue Wheels" and "Fancy Graphics". You know, "Marketing Bling".

I believe polyester and white shoes have left the building. :lol: LOL

Dale

williestreet said:

Mine was shimmed on the clutch side and everything I can find says Bergs and KTMs' must be shimmed on the ignition side. Any thoughts?

Click to expand...

Lots of thoughts, but nothing concrete :lol:

If you ever find out the reasoning behind KTMs/Husabergs thinking, let us know.

BTW, was it clutch or ign side that failed on your 560 ??

AUSBERG said:

williestreet said:

Mine was shimmed on the clutch side and everything I can find says Bergs and KTMs' must be shimmed on the ignition side. Any thoughts?

Click to expand...

Lots of thoughts, but nothing concrete :lol:

If you ever find out the reasoning behind KTMs/Husabergs thinking, let us know.

BTW, was it clutch or ign side that failed on your 560 ??

Click to expand...

"Technical personnel rarely write technical manuals"
Common sense is of tremendous value while working with European motorcycles.

Simply because something is in print does not guarantee it is correct.

Dale