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Piston on chainsaw

  • 10-10-2020 10:54pm
    #1
    Tomjim
    Registered Users Posts: 1,353 ✭✭✭


    Posts: 1,088
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    Piston on chainsaw
    I have a stihl chainsaw 18 years and done very little work with it, used a few times a year.

    The piston is whacked and the garage thinks it is down to the fuel

    I always put oil in the petrol and kept petrol in a jerry can

    In some cases the petrol mix may have been in the can for a few months

    Any views as to what the issue is?

    I'm getting it fixed so don't want it to happen again


Comments

  • #2
    blue5000
    Moderators, Society & Culture Moderators Posts: 12,696 Mod ✭✭✭✭blue5000


    Tomjim wrote: »
    Posts: 1,088
    Adverts | Friends
    Piston on chainsaw
    I have a stihl chainsaw 18 years and done very little work with it, used a few times a year.

    The piston is whacked and the garage thinks it is down to the fuel

    I always put oil in the petrol and kept petrol in a jerry can

    In some cases the petrol mix may have been in the can for a few months

    Any views as to what the issue is?

    I'm getting it fixed so don't want it to happen again
    What was your mix ratio with the fuel;oil? Aspen might work better if you're not using the saw that often.

    If the seat's wet, sit on yer hat, a cool head is better than a wet ar5e.



  • #3
    CJhaughey
    Registered Users, Registered Users 2 Posts: 14,907 ✭✭✭✭CJhaughey


    Fuel goes bad quickly these days, especially kept in plastic containers.
    Some good oils have fuel stabilisers in them but cheap oil generally doesn't , the fuel oil mis also stratifies after a while and should always be shaken before use.
    As said Aspen is a long life fuel and is available premixed so you don't need to mix your own oil.


  • #4
    Johnner2
    Registered Users Posts: 49 ✭Johnner2


    Make sure you were running it with the specified spark plug. Mix should be 50/1,give the can a good shake before use, and avoid mixing different types of two stroke oil.


  • #5
    Thepillowman
    Registered Users, Registered Users 2 Posts: 244 ✭✭Thepillowman


    Do a vacuum and pressure test before using it. Often used fuel a few months old a shake beforehand and it would be fine.


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