Rocker Arm Roller Bearings

[supertireguy]

Just a heads-up for Husaberg owners to check their rocker arm roller bearings on a periodic basis.

During some recent service I noticed my roller bearings were a bit crunchy and not rolling smoothly. Around the same time I noticed an increase in top end valve racket. During the previous oil change I also noticed an increase of metal whiskers on the oil drain plug magnet. Keep in mind that my bike has over 4500 miles and 170 engine hours on the clock. Not bad for a high performance stressed motor. No damage or undue wear was done to the cams or other engine bits. With the new rocker arm & roller bearings the top end racket is much very quiet by comparison.

I would recommend that Husaberg owners check these rollers every 50 engine hours or so. You don't have to remove the rocker arms to inspect. Just remove the valve cover, press your finger on the rollers (fig #60 & #61) and try to roll them back & forth. They should roll like butter. I'm told the bearings in these rollers can be serviced with the right tools but I opted for new rocker arms.

Cheers...

http://supertireguy.com/photos/husa_valves.gif

[khelton]

Thanks for the postup STG, hae now changed my oil 5 times and still getting small shavings on the magnetic drain plug....will take a closer look at the rocker bearings...

[bmxr]

Same here... five changes and nine hours. Consistent amount of shavings in the plug. Hmmm...

[supertireguy]

A few whiskers on the drain plug is normal.

If you see an increase of debris on the magnet it's a sign to take a closer look for possible trouble.

[bmxr]

Thanks for the info! As you know, with the hours on your baby, you are our "canary in the mineshaft"! :thumbup: :lol:

[supertireguy]

Better a Husaberg FS650 canary in the coalmine than a Honda CRF450R canary in the coalmine.

170+ engine hours on a high strung motor is good news. CRF450R motors certainly put down the knarly power for their size but they usually grenade or need a big rebuild after 50 hours.

[khelton]

A few whiskers on the drain plug is normal.

If you see an increase of debris on the magnet it's a sign to take a closer look for possible trouble.

Where do you think these "whiskers" are coming from ?

[sm610]

Where do you think these "whiskers" are coming from ?


One might assume that the whiskers are coming from the roller bearings, in addition to the other steel stuff that wears, like the trans.

[sic66chev]

i think there are actually steel elves (watchmakers no doubt ) from sweeden that actually lose there small steel facial hair while constantly winding the things! i just got a 2000 fx600e from a guy locally and decided hey new bike (to me) buy a filter swap some oil ... i pulled out the lower screen and was freakin out ( i never see metal shavings in my chevy motors! well untill d - day is upon them!) but after a bit of visiting the UHE im gonna do the normal wear point checks and then ride it till it breaks ... and i mean it was only a fingernail worth...:headscrat