Sthil 025 chainsaw has bar bar oil pouring out of the output hole

[raymondjiii]

So the oil is coming out of the correct place and there is no oil leaking on the floor when the chainsaw is not in use. I assume this is a venting problem?

My original oil cap cracked in the middle (sticking a screwdriver in the slot to open it) so I replaced it with a new one - might not be original Stihl - but it does seem to fit. The other place is the little silver circle with the hole in it. I believe this is the vent.

Any way I can figure out which (or something else) might be the cause of this? I took the bar and chain off and started it up, the bar oil just pours out and eventually runs down around the sprocket area and turns black and I get some smoke.

Thanks for any help.

 

[D'Animal]

Is it coming out the oiler hole or is it coming out of the hole that has the Orange plug in the picture below next to the muffler?

 

[e9999]

Raymond, since this is your first post, you may not realize that you just hit the jackpot. There is absolutely nothing that Dan does not know about Stihl saws.... Heck, I think he knows about Stihl saws that haven't been designed yet! You are out of the woods, my friend!

I should add that I love my 025. Has been going strong for 20+ years or so. A very nice size. Only had to change the fuel line once I think. And maybe not even that, not sure, I have several Stihls...

 

[raymondjiii]

I am having a hard time figuring out where that orange plug is. I "think" it's coming from different sources. It is definitely coming out of the oiler hole but it looks like it's also coming from somewhere else. Another thing I noticed is that little metal rod that spins around turns the worm gear for the pump - that metal piece - is not catching the clutch cover which has two small notches in it.

I think I am going to have to remove the clutch to see what is going on. I just ordered that piston stop tool so that I can take it off. I'll report back when I have more info. Thank you.