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  1. #1
    Platinum Member
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    May 2005
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    Rochester, NY
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    FarmTrac 270DTC

    Default Chainsaw help

    I inherited a Homelite 240 chainsaw. I was out cutting up some brush and logs to be hauled away with my tractor, obligatory tractor reference. Well it turns out the chain was not getting any oil. There was some oil dripping down the front of the saw. I opened up the top of the saw and found what I think is the oiler. The first pic shows the dripping and the second shows what I think is the oiler circled in red. The two tubes coming out look cracked but I could not see active leaking when I started the saw. Is this the oiler and has anyone tried to replace these tubes? I did clear the ports in the bar to make sure that was not the problem.
    Attached Thumbnails Attached Thumbnails Chainsaw help-img_0059-jpg   Chainsaw help-img_0058-jpg  

  2. #2
    Veteran Member Treemonkey1000's Avatar
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    Jan 2008
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    1,894
    Location
    Renton, Washington
    Tractor
    Kubota L3750

    Default Re: Chainsaw help

    Take the side of the saw off where the bar is and take off the bar and chain. Then start up the saw making sure there is oil in the tank. Once it is running rev it up for a bit and see if you have oil dripping out of the port. If you do good. What that means is the oil hole in the chainsaw bar is clogged up possibly. Take a small nail or thin screwdriver and run it down the chain groove. There is often a small hole by the back of the bar where it bolts to the saw. Oil should go in there and lube the bar. Now if there is no oil dripping out the next easy thing to check is the oil tank. See if you can hook the oil pick up in the tank. Carefully pull it out to look for it being clogged or the oil line cracked. If those look ok then your oil pump may be cracked or the hose to it damaged. That would involve taking off the clutch.
    Another thing to look at is see if it has a screw hidden away topside or on the bottom to adjust the oil feed rate. Crank that up and down and then start it. That might prime the pump sort of.
    You did say you cleaned the bar ports sorry about that. And yes if you see cracks in those lines then replace them. Still check inside the oil tank for the hose in there being shot. If the feed line is cracked you won't see them leaking at all.
    Last edited by Treemonkey1000; 03-25-2010 at 08:04 AM.
    1st Peter 1:6-9

  3. #3
    Elite Member
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    Apr 2009
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    adirondacks

    Default Re: Chainsaw help

    Quote Originally Posted by Eric_Phillips View Post
    . Well it turns out the chain was not getting any oil. There was some oil dripping down the front of the saw.

    You probably know this but the easiest way to check for bar oil is to hold the saw{tip of bar} close to a piece of wood and rev it up. As long as the bar is getting oil it will splatter a fine line on the wood. With oil dripping off the front I would think it was a clogged bar{???}

    I opened up the top of the saw and found what I think is the oiler. The first pic shows the dripping and the second shows what I think is the oiler circled in red. The two tubes coming out look cracked but I could not see active leaking when I started the saw.
    If they're craked you might as well start there and replace them?

    Is this the oiler and has anyone tried to replace these tubes?
    I'd have to see your saw in person, but usually they're not that hard to spilt and/or change hoses.

    I did clear the ports in the bar to make sure that was not the problem.
    How about the bar itself? where the chain rides?

  4. #4
    Elite Member dodge man's Avatar
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    Oct 2008
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    West central Illinois
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    Kubota BX2350

    Default Re: Chainsaw help

    Just looking at your photo's, that doesn't look like how the bar is oiled, but I'm just guessing since I'm not familar with your saw.

  5. #5
    New Member
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    Dec 2009
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    Location
    Shropshire, UK

    Default Re: Chainsaw help

    I think the pipes you are idicating are part of the feul system, i do not think that it is anything to do with the chain oiling system. This wil be a simple oil pump driven off the crankshaft or similar.
    Take the bar off and check the oil holes, they should lead straight into the chain guide. Have you actually looked at the chain after reving the engine some saws don't use much oil and hardly throw any off (my new one is like that).
    Another tell tale sign that the saw isn't oiling correctly would be the chain guide, this will overheat without oil.
    RJA

    If you're not part of the solution you're part of the problem

  6. #6
    Elite Member dodge man's Avatar
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    West central Illinois
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    Kubota BX2350

    Default Re: Chainsaw help

    I agree, my Stihl doesn't throw much oil, but it seems to work O.K.

  7. #7
    Elite Member
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    Default Re: Chainsaw help

    Quote Originally Posted by dodge man View Post
    I agree, my Stihl doesn't throw much oil, but it seems to work O.K.
    The stihl has the adjustment on some of their models to turn oil flow up. That was the 1st thing I noticed when I switched to stihl, there bar oil consumtion.

  8. #8
    Elite Member Chilly807's Avatar
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    Sep 2009
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    Nova Scotia
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    Kubota L3400DT

    Default Re: Chainsaw help

    From what I can see that is part of the oiling system. Some of the older Homelites used a crankcase pulse system to activate the chain oiler. Anything that high up on the saw is either fuel or oil, and the carb doesn't need anything else but itself to provide fuel.

    There is probably a diaphragm arrangement, with a pulse line going to the crankcase and a second line going to the oil feed for the bar and chain.

    You may have a pulse line issue, a bad diaphragm, a stuck check valve (likely), a pickup issue, or a kinked or cracked hose going to the bar or oil tank.

    Lots of possibilities, one or more of which is probably where the problem lies.

    A side note, I collected old chainsaws at one time, still look out for unusual stuff. I hate to say it, but the old saws are better as wall hangers or occasional runners for nostalgia. The improvements in anti-vibration and the advent of chain brakes really does make the newer saws safer and more user-friendly.

    My 2 cents,

    Chilly

  9. #9
    Silver Member Nitro-Fish's Avatar
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    Jan 2010
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    179
    Location
    VA
    Tractor
    JD 3320

    Default Re: Chainsaw help

    Yes that is the oil pump on the homelite 240 and yes you should replace the lines if they are cracked. Check a site called arboristsite.com for helpful advice. I used to have two of these saws, but never had to replace the oil lines, they never dry-rotted/cracked, but they are just like the fuel line, if they show wear replace them before it's too late.
    JD 3320 w/300CX loader
    JD 790 with 419 FEL R4's w/Rim Guard SOLD
    Implements; never enough
    Bobcat ZT mower
    Yard equipment; as much as I can get
    Chainsaws; too many!

  10. #10
    Silver Member
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    Mar 2008
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    154
    Location
    Nova Scotia
    Tractor
    Kioti CK25

    Default Re: Chainsaw help

    ""A side note, I collected old chainsaws at one time, still look out for unusual stuff. I hate to say it, but the old saws are better as wall hangers or occasional runners for nostalgia. The improvements in anti-vibration and the advent of chain brakes really does make the newer saws safer and more user-friendly."""

    I have to agree its time to hang your saw on the wall,in my business we retire a power saw in 6 months,however as a casual user I would suspect a 5 year life....just my 2 cents....now I duck....

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