The Forestry Forum

I have a stihl MS290 and the oiler was not working.
I took the side cover, bar and chain off.
I cleaned it up good and there was no oil coming out.
I then Remove the e-clip holding the sprocket drum on and remove the drum.
On the back side lip of the drum was a little notch that a wire like went into that operates the oiler.
It was out of range of the drum and was not turning.
I guess it broke off or wore down some.
I think I got the little wire bent enough to work the oiler ok.
If it dont keep working I will have to go back in and pull the clutch off.

The problem was, I could never get the clutch off?
I was able to take out the 3 clutch springs just to get enough of the wire to bend it to work.
How do you remove the clutch?
Is it standard threads; left to loosen and right to tight?
And how do you hold the crank from turning to loosen the nut?
Am I on the right track here?
Thanks,
mtnman

The clutch is left hand thread (backwards). To keep the engine from turning over you either need to use a piston stop (remove the spark plug, insert plastic piston stop or enough starter cord to stop the piston- don't lose the cord down the ports) or else spin it off with an impact wrench.

The wire that turns the oiler pump worm gear is a common replacement part, most Stihl dealers should have it in stock.

Good to know.  I may be having to go through this process myself...

Quote from: Rocky_J on September 29, 2008, 08:03:13 PM
The clutch is left hand thread (backwards).

OK I just want to make sure before I start putting pressure on it the wrong way, I got to set the rachett as if I was going to tighten something to take that clutch bolt off, correct?
Do you know the a torque setting for re-tighten the bolt?
Thanks,
mtnman

Yes, left hand threads mean that lefty=tighty and righty=loosey

You only need to get it snug on reassembly, the torque from the motor when cutting will continue to tighten it more.

Thanks Rocky!!!!
mtnman