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Advice on fixing Stihl 075 AV

Post in 'The Gear' started by intc97, Jun 2, 2008.

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  1. intc97

    intc97 New Member

    Joined:
    Apr 24, 2008
    Messages:
    33
    Loc:
    Churubusco, NY
    I just picked up an old Stihl 075Av. The manual said it was purchased in March of 1978. It runs good. The problem is the case screws wont stay in place. I was thinking of retapping the holes for larger screws . Does anyone have any ideas on this problem? I also need a new muffler. Does anyone know of a supplier with reasonable prices?
    Thanks

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  2. WES999

    WES999 Minister of Fire

    Joined:
    Jan 12, 2008
    Messages:
    888
    Loc:
    Mass north of Boston
    If there is enough material you may be better off drilling and tapping for a helicoil insert. Many auto parts stores carry the helicoil thread repair kits.
  3. computeruser

    computeruser Feeling the Heat

    Joined:
    Jan 16, 2007
    Messages:
    337
    Loc:
    East Lansing, MI
    Are the threads worn out, or is it just that they vibrate loose? If the former, then you'll need to do it the right way: drill and use timeserts. If the latter, well, try some blue loc-tite, as these old saws are notorious for vibrating all sorts of stuff loose.
  4. intc97

    intc97 New Member

    Joined:
    Apr 24, 2008
    Messages:
    33
    Loc:
    Churubusco, NY
    The treads appear to be worn out. I guess all of that power over the years did some damage. The saw still has good compression. I still use my two 041 saws and didn't want to see another old Stihl die. Will take the time to replace the muffler and get everything tight before using.
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