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Stihl chainsaw leaking bar oil

Discussion in 'Mechanic and Repair' started by OKSooner, Sep 16, 2010.

  1. OKSooner

    OKSooner LawnSite Member
    Posts: 213

    I have a stihl chainsaw that's leaking bar oil like a seive.

    Whats up with that? What needs to happen to fix it?

    TIA
     
  2. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Posts: 9,544

    Where is it leaking from do you have a cracked oil tank or is it drooling out the oiler ?

    If your using winter bar oil it is thinner and will drool all my Stihls drool a little bit.
     
  3. dutch1

    dutch1 LawnSite Silver Member
    from Jayhawk
    Posts: 2,231

    Is it leaking while running or when sitting? If it's leaking while sitting, it would be wise to pull the clutch cover and bar to look for the source. If it's leaking while running as well, you may want to start it up with the bar off and plug the oil exit with a finger to check for leaks about the oil pump. You didn't mention the model, not that it would help since there are no parts breakdowns to take a gander at, but it might be one that I have encountered. You may want to consider a gasket between the oil pump and oil tank.

    Possibly a Stihl guy will show up to give some better information or an indication of a particular problem with your model.
     
  4. StihlMechanic

    StihlMechanic LawnSite Bronze Member
    Posts: 1,133

    While sitting, they all leak some, not really a leak but residue from the last use. Some saws have a split oil tank that has a gasket. Is the chain getting oil or not? What model? The oil is adjustable on some models, is it cranked up?
     
  5. OKSooner

    OKSooner LawnSite Member
    Posts: 213

    The bar seems to get oil just fine, but it leaked bad bad bad and empty just sitting in my shop. I'll get you the model number over the weekend - I don't know anything about adjustable oil, so I might ax you to talk me thru it.

    Thanks.
     
  6. OKSooner

    OKSooner LawnSite Member
    Posts: 213

    It's an MS260. Other than that all I know is that it's leaking bar oil. Is this something I can take care of myself or would you recommend I take it in?

    TIA
     
  7. dutch1

    dutch1 LawnSite Silver Member
    from Jayhawk
    Posts: 2,231

    What you depends on your mechanical skills and your ability analyze the problem.

    I would say that if you haven't made the effort to pull the clutch cover and bar, fill the bar oil reservoir in order to search for the leak, then, by all means you should take it to a Stihl shop for repair.
     
  8. StihlMechanic

    StihlMechanic LawnSite Bronze Member
    Posts: 1,133

    I would take the bar and chain off, clean the saw very well, and go from there. The ms260 is an awesome saw but they are known to seep oil, but in your case its prob a leak. Check the obvious, check the cap, if you have the tool-less cap, they are junk and are known to not seal. There isnt a good fix for the cap other than replacing it. Good luck, let me know.
     
  9. rreyn1812

    rreyn1812 LawnSite Senior Member
    Posts: 444

    Had the same problem with my Stihl MS260 Pro. Ended up being the cap. It leaks and dribbles down the case to the bottom and looks like it was coming from somewhere else. For the cost, try replacing the oil tank cap first. Luck! :)
     

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