ms 660 problem

[elfinwood saws]

it is the sprocket/clutch drum they've parted company.

 

Better than the end of the crank snapping off!

[spudulike]

Never seen that before - was it genuine OEM, Oregon or Chinese? As Elfin says - better than a sheared crank and many other faults that could have occured!

[canoehead]

as far as i can tell it was an oem. thou the ref. no's don't exactly match mr solutions fiche for the same parts. and it was a spur sprocket. (now that i know the difference, thanks Agg). it was like it torqued itself apart. i blame myself for running the saw past the point where i should've stopped to remove the chain for sharpening. only had the one chain with me that day, and just wanted that last cut of the day. wont do that again in a hurry. doh!!