MS460 Missing Shrapnel?

[StihlWeekendWarrior]

Middle of last winter I picked this 460 up off of craigslist immediately after cutting wood with my buddy. Me running a pathetic MS210C and him a MS290"Farm Boss" pretty much bought the 460Mag before I dialed the number. It is a high hour saw, no doubts there. But it runs better than my daily driver. Been running it since then. Great compression, smooth running...etc.

So a week ago or so I was digging into my saw for no other reason than curiosity. Cut just fine, ran great, no shakes...etc. I pulled the drum off and a small piece of metal fell out into my hand. The only thing I could see It being was one of the clutch shoes(?) missing a tab. Ordered a set of new clutch shoes from eBay.
Fast forward to today, and obviously there are some differences here between new and old. Checked through the internet and the part number on the new shoe is applicable to my saw, maybe just an updated/different design?
More comparison pics. Then I noticed that it wasn't just one tab missing off of the original shoe...
All three shoes appear to be missing tabs.

I tried to upload the pics I took of the clutch side of the saw after it was cleaned out but apparently these 4 photos equal 10 uploads total.

Basically I cant see anything wrong with the saw on the inside and just want to know if someone has seen this before. Maybe this is completely common and sheds light on my inexperience with high hour saws.
Thanks in advance,
-Adam

 

[StihlWeekendWarrior]

Also FYI, never before have I uploaded photos to any forum, anywhere. So if the thread looks highly unorganized or has multiple pictures, please excuse my obvious lack of computer operation knowledge.

 

[Philip Wheelock]

Can you figure out what the metal fragment was attached to or where it came from?

 

[StihlWeekendWarrior]

Can you figure out what the metal fragment was attached to?

It definitely was from the red circle in the first picture I uploaded. Im just curious how the hell the rest of them broke and didnt make the inside of the saw FUBAR

 

[HarleyT]

Here are some nuggets from the Mediacat goldmine....
See if any pertains to your problem.


Click on the photo to make it larger....

 

[Philip Wheelock]

You never know what went on with the saw before you bought it. While you have the clutch apart, I'd replace the clutch springs & retainers. Check the clutch drum & needle bearing for wear as well.

 

[StihlWeekendWarrior]

Here are some nuggets from the Mediacat goldmine....
See if any pertains to your problem.
View attachment 494324 View attachment 494325

Click on the photo to make it larger....

Exactly the information I was looking for. Well that answers the different clutch shoe bewilderment. The "new" clutch shoes are in fact an older design than the ones I had found in the saw. Considering they dont have the locking tabs to break off of the end, I feel more inclined to use them though. Have to check the washer that came out when I get home.
Incredibly helpful stuff here. Thanks!

 

[StihlWeekendWarrior]

You never know what went on with the saw before you bought it. While you have the clutch apart, I'd replace the clutch springs & retainers. Check the clutch drum & needle bearing for wear as well.

Yeah each of the springs are almost a 1/3 of the way wore through on one side. Is that a normal occurrence?
Bearing seems ok also.

 

[Philip Wheelock]

Yeah each of the springs are almost a 1/3 of the way wore through on one side. Is that a normal occurrence?...

Normal as in wear & tear. Best to replace everything suspicious in the clutch while it's apart.