2011 blackline, 24k service

i changed my primary fluid and found a disturbing (to me) amount of shavings on the magnet including a couple of long pieces, have never seen that much on there before. and the oil seemed dirtier than usual.

i have run amsoil 20/50 since the second fluid change and i have done more changes than what is called for, always adjust clutch according to schedule and manual

i have been running it much harder than usual in the last few thousand k... that includes a couple of burnouts just to see if i could, didnt dump the clutch just feathered it out with a high rev (this was on dry pavement with stock tires in good condition)

those are all the things i have done good or bad that i can recall.

my question to you... what could the metal be from? and what should i be looking at if anything after seeing this?

seems fine after the fluid change and clutch adjustment, meaning i cant feel any problems with it (tho it does feel and sound better). i was thinking i might change fluid after a thousand or so kilometers just to see if there is any new metal.

 

The oil would get "dirty" and have an oder due to clutch plate wear which is normal and the more wear you put on the plates (by the way you ride) would determine how dirty or discolored the oil gets. The metal pieces could come from anywhere in the case. I ran Amsoil 20-50 in my 07 and after about 20K the magnet had only a very little pasty bit of microscopic metal on it at 54k.

 

A lot of metal on metal contact it the primary. Ive had some splinters too early on but it ended up being nothing. Keep an eye on it. Its probably just break in material. Take a picture next time.

 

As long as you don't smell burning or see brass-colored metal shavings (or worse yet, chunks), you should be okay.

 

Where is there brass in the primary?

 

Not saying there is. All I know is that an indy mechanic near me showed the "shavings" out of a primary with a blown main shaft bearing awhile back and some of it seemed to have a distinct brassy tint to it...

 

Dont think there it any but the first shade of heated metal is yellow and when something goes thats what you see. fwiw

 

Good to know. Thanks.

 

It's possible that shaving has been in the primary since day 1........lodged in some corner of the housing and the subtle change in oil pressure or vibration due to riding conditions (running it harder) /burnout caused it to break free and the magnet finally picked it up. Could also be material left over from threading (tapping) the drain hole in the primary and it broke free when you pulled the drain plug. Keep checking the plug!

 

It's not uncommon to use bronze in bushings. That would give a yellowish tint.


http://www.atlasbronze.com/cast_bron...FcV7QgodyDQA1Q