ArboristSite.com Sponsors
 
 


  1. Please see this post Click Here Please ask questions if you have them!! I hope this is going to be great for us all.
    Dismiss Notice

Air bubbles in fuel line.

Discussion in 'Chainsaw' started by MrGiggles, Mar 9, 2009.

  1. MrGiggles

    MrGiggles ArboristSite Operative

    Joined:
    Jan 23, 2009
    Messages:
    495
    Likes Received:
    190
    Location:
    Missouri
    I have been working on a 1973 Crafstman 2.1 chainsaw, and just recently got it running.

    It runs ok, it just needs some fine tuning. I am not sure what to think about bubbles in the fuel line. When it is idling, they move a little bit. When you rev it up, the rush to the front of the line and stay right before the metal from the carb input fitting. As far as I can tell, they don't really affect anything but I am wondering if they will or if they are harmless. It's a good old saw, made in the USA and has 2 compression rings.
     
  2. heimannm

    heimannm Addicted to ArboristSite

    Joined:
    Dec 28, 2005
    Messages:
    7,267
    Likes Received:
    2,304
    Location:
    Dike, Iowa
    I ran into the same problem on a similar saw and had to change the fuel filter a couple of times to clear it up.

    Seemed almost like the vaccum from the carburetor pulling fuel from the tank was creating such a low pressure it was "boiling" in the line.

    Mark
     

Share This Page