Question about Husqvarna , No.455 Rancher, 20" Gas - Powered Chainsaw

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I have a husqvarna 137 chainsaw. The problem is with the bar oil. When the saw runs oil is flowing but where the rubber corner piece which allows the oil to flow out of appears to be just dripping the oil straight out. It looks like it should fill a small reservoir behind the metal plate and the oil then moves upwards where the chains drags the oil through the oil hole on the bar which is moving outwards as in the top chain on the bar. However the chain-brake area is just getting messy with oil splattering all over and the bar not actually getting oiled. I have fitted a new metal plate to see if the corner of the original was not sealing properly but that has not helped. The bar holes are clean. Any suggestions as I can't see what it could be?

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  • marcus459 Apr 12, 2011

    I have since fitted a new worm gear and oil pump assembly but still very little oil is reaching the bar instead it makes a real mess in the chain brake assembly



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It's the rubbers. I had the same problem with my 137 and 141. The rubbers shrink over time and the oil never makes it up the channel. The replacement part is one piece and less prone to leaking than the original 2 piece design.

Posted on Jan 29, 2012

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Hi marcus,

The bar and chain oil goes into the oil tank on the side. The oil for the engine is mixed with the gas before filling the gas tank.

Hope that helps.

Handy Andie

Posted on Mar 20, 2011

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  • Handie Andie
    Handie Andie Mar 30, 2011

    This is for anyone who is looking for this answer. I misread the question when I answered it.

    If the bar oil is running out near the clutch too freely, I have found that sometimes the problem is because the bolt holding the bar on is not seated correctly. It is the outside bolt and is accessible through the bar oil filler cap. The bolt has a square head and fits snuggly between two ridges in the bottom of the bar oil container. I used a magnet extension and just reseated it, then tightened the nut on the bolt tightly to pull the bolt on tight. Have not had a problem since.

    Hope this helps someone. If it does, I would appreciate a vote or comment.

    Handie Andie

  • Handie Andie
    Handie Andie Apr 12, 2011

    Hi Marcus,

    Did you replace the oil seal or check the pump and all its components for cracks or leaks?
    Could have something like that. If the bolt in the oil container is completely tight and fitted properly, the only other thing it could be would be a leak in the pumping system, such as the above. In that case, the bar wouldn't be getting enough oil.

    Handie Andie

  • marcus459 Apr 13, 2011

    Hi Andie, do you mean the two bolts that come out of the saw body that fit through the bar, I have to check if one of these is aligned correctly through the bar oil chamber? I have replaced the worm gear, oil pump, plate that fits over the rubber hose/oil port and I have also replaced this. There is adequate oil coming out but the plate just simply is not sealing properly to hold the oil so that move up to the channel that aligns with the oil hole in the bar. I'm getting a hell of lot of oil splattered in and around the chain brake area but the bar is getting quite hot still.



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