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Stihl 026 fuel line replacement

Discussion in 'Chainsaw' started by Dockfishin, Jul 28, 2016.

  1. SteveSr

    SteveSr Addicted to ArboristSite

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    I always upgrade mine partly for this reason. The other reason is that the newer 10mm "s" one will be available LONG after the other one is obsolete and NLA. I am sort of surprised that it is still available today. Saws haven't used this for about 2 decades now.


    The difference is Old = 8mm hole vs. New = 10mm hole. I usually use a 15/32" drill. I would rather it be a little tight than a little loose.
     
  2. DocBob

    DocBob ArboristSite Lurker

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    Im about to drill mine out. But 10mm is btwn 3/8 and 13/32. 15/32 would be about 12 mm hole.
    3/8 = .375
    10mm = .394
    13/32 = .406
    15/32 = .469
    12 mm = .472

    are you sure the new larger line is 10mm?
    I guess i can drill 3/8 and work up if it doesnt fit


    Followup - i measured the new fuel line at the grommet/groove, and its 12mm. So 15/32 is correct. But it looks like the tank cant be drilled easily bc there isnt a straight shot through the top of the housing into the tank. Anybody have any tips to drill the hole or ream it out to 12mm?
     
  3. Kenskip1

    Kenskip1 Addicted to ArboristSite

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    I don't know what all the fuss is about. I just did one with a carburetor rebuild.Granted the atmosphere was filled with a few choice words related to human anatomy,tools mysterically grew wings and attempted to defy gravity. The dog was hidden under the 4 wheeler during this episode.It was the "S" one but goterdone.
     
  4. SteveSr

    SteveSr Addicted to ArboristSite

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    It depends which version of the tank housing that you have. Photos would be useful. Some tanks have a metal "window" than can be removed to facilitate access. I usually stand on the tank handle/housing and then use a hand held 3/8" electric drill to get the hole as vertical as I can. Once you are done try to remove any burrs from the inside and outside of the tank hole.
     
  5. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    Step drill makes a smoother rounder hole.
     
  6. backhoelover

    backhoelover Free service manuals and service tool info

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    poor a little 70% alcohol on it will make it go in easier.
     
    DND 9000 likes this.
  7. backhoelover

    backhoelover Free service manuals and service tool info

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