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why me? 372 blown...again

Discussion in 'Chainsaws' started by Mattyo, Jan 13, 2018.

  1. Wolverine

    Wolverine Do you even burn wood bro?

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    Good enough for who it's for?
     
  2. malk315

    malk315 Running Saws for Therapy

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    So mystery solved on the sloppiness of that clutch last weekend -- 576 clutch has bigger threads. Wow.
    Good to know. Bummer it caused a leak.

    Is this the saw I cut one 3 or 4 foot length in half lengthwise?

    Glad you got things figured out to root cause!
     
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  3. Mattyo

    Mattyo Youtube speciawist

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    Yes indeed this is the saw it ran okay but only okay it did not tune as I would have liked so hopefully this solves that problem but maybe not maybe there are other issues that I need to work out we will see
     
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  4. tree monkey

    tree monkey Jon1212 Approved!

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    we talked about that straight fuel lineo_O
     
  5. Mattyo

    Mattyo Youtube speciawist

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    Ya...I used too much. My fault. Not the line.
     
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  6. Mattyo

    Mattyo Youtube speciawist

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    I shortened the line in the air box and think kink went away. ...again....my bad. Not gonna blame the line for that.

    Who knows whether this or the vac leak buggard the piston....

    20180113_085204.jpg
     
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  7. Finnrpm

    Finnrpm Well-Known OPE Member

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    FYI..........

    570 oem clutch pn: 503744405
    372 oem clutch pn: 503744401

    It seems that those responsible for clutch design at husqvarna, do not really understand true meaning of CAD......... :)

    RV
     
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  8. Mattyo

    Mattyo Youtube speciawist

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    nice info, thanks

    there's just no good reason to change the threads... none. and the clutches would be identical otherwise.
     
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  9. tree monkey

    tree monkey Jon1212 Approved!

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    :BangHead:
     
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  10. Mattyo

    Mattyo Youtube speciawist

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    Yup....thats how it feels. I spent an extraordinary amount of time building these things and they still get messed up.

    Every time I think I did an ok job something bites me in the ass.....


    ....and later I realize it was me that did it


    Ugh
     
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  11. Derf

    Derf Pinnacle OPE Member

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    Hey Matt, don't feel bad. Everyone learns from their mistakes, and I doubt you'll make them again in the future. You're a very knowledgeable saw mechanic, and you're always helpful when you offer to wrench on a saw at a GTG. Thanks for sharing what you learn with the community, too.

    "The greatest teacher, failure is." -Yoda, Star Wars The Last Jedi
     
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  12. Stump Shot

    Stump Shot Old *pretty boy dipstick of Quality

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    Just a matter of details... Some aren't so minor.
     
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  13. paragonbuilder

    paragonbuilder Jon1212 Approved!

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    If it was the line, it seems it would have cheaper to just buy the curly line at this point.


    Sent from my iPhone using Tapatalk
     
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  14. Mattyo

    Mattyo Youtube speciawist

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    I don't think it was the line. I think it was the vac leak. But...I think the line was causing the stalling in the cuts. ...
     
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  15. p61 western

    p61 western Jon1212 Approved!

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    How bad does the piston look?
     
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  16. Mattyo

    Mattyo Youtube speciawist

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    Well....let's seee.....
     
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  17. Mattyo

    Mattyo Youtube speciawist

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  18. Mattyo

    Mattyo Youtube speciawist

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  19. p61 western

    p61 western Jon1212 Approved!

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    Ouch that hurts. Time for a new piston for sure.
     
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  20. tree monkey

    tree monkey Jon1212 Approved!

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    :facepalm:
     
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