Hi all,
have had some time to remove the sprocket and looked at it. I have posted two videos, please check and advice as I am not quite sure. First is about the play of the drum sprocket back and forth. It does spin freely when rotated by hand, just not sure for how long it has to spin freely when given a push. Is this spin normal that you can see on video. The play in the sprocket- Looks like the ring that the needle bearing is sitting on is about 1-2mm longer and the nut that locks the sprocket cannot be tightened enough, to lay against the sprocket
Another thing- I have ran the chainsaw for no longer than 5 mins since I bought it and I am almost sure the ware on the driver sprocket was not there. Is it pssible to appear that quick and what might have caused it.
In the second video I have tested again after assembly. I have only put some grease on the needle bearing and that was it. Springs on clutch looked ok to me, as when i tried to pull any of the three plates of the clutch, I couldn't even lightly move any of them, so I guess they are OK. Also, as you can see from images, clutch is covered in oil, is this normal or it should be clean?
This is how I mount the chain, guess it is correct.
The back of the plate that is between clutch and needle bearing. Actually what you seen on picture, is everything that is under the sprocket. Does it has to be something more? Sprocket seems to be genuine STIHL one, as I can see STIHL logo embed on it.
As you can see the chain does not stop immediately after releasing throttle.