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My theory works.

Discussion in 'Chainsaws' started by 67L36Driver, Mar 12, 2019.

  1. 67L36Driver

    67L36Driver ONE OF THE GREATEST!

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    We all know the drill. After a fuel system overhaul one primes and pulls several times to get fuel into the carb.

    Not having the energy to do that multiple times on this 056 Super, I heated the tank with a blow dryer.
    [​IMG]
    Used vapor pressure to fill the fuel line.

    Old devil ran on the third pull.
     
  2. Intoxsawcated

    Intoxsawcated Super OPE Member

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    Cheater

    Sent from my SM-S327VL using Tapatalk
     
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  3. trooney

    trooney Admitted Woodaholic

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    Hmmm, pretty cool!
     
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  4. Basher

    Basher Pinnacle OPE Member

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    Save a blow dryer, shake /agitate the saw vigorously.
     
  5. Duke Thieroff

    Duke Thieroff Fill your hands you SOB!

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    Carl!

    I like this idea! That'll save your arm a little bit!
     
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  6. Nutball

    Nutball Super OPE Member

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    Or a little starting fluid with the choke on. Note too much starting fluid will simulate flooded conditions
     
  7. 67L36Driver

    67L36Driver ONE OF THE GREATEST!

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    056 w/30” weighs 25# 7oz. Geezer not shaking it.
     
  8. Basher

    Basher Pinnacle OPE Member

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    That`s just a little above the head liming saw one can use one handed....LOL
     
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  9. Derf

    Derf Pinnacle OPE Member

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    If the tank vent operates properly, I'm surprised there was enough pressure build up in the tank to push fuel through the fuel line.
     
  10. Pony

    Pony Active OPE Member

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    On every saw I've worked on the tank vent allows pressure to come into the tank not out of it .
     
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  11. Al Smith

    Al Smith Pinnacle OPE Member

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    As a rule of thumb it takes between 6 and 10 tugs on a dry carb to suck enough fuel to get it started .
     
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  12. 67L36Driver

    67L36Driver ONE OF THE GREATEST!

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    I fell on my face and sprained my right hand Dec 27. Still aches.

    Not wanting to pull much, so, the short cut.
     
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  13. redline4

    redline4 I'm huge in Japan

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    A few weeks ago when it was -15 or so, I had my J-red 630 in my truck.
    I brought it into the shop at work and set it on my bench. About 15 minutes later, I noticed a fuel odor and saw it was sitting in a puddle.
    Just the change in ambient temp was enough to build enough pressure in the tank to push it out the sintered fuel tank vent.

    I fight pressure rise on cars in weather like that when coming in out of the cold and diagnosing evaporative emissions systems too.
     
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  14. Al Smith

    Al Smith Pinnacle OPE Member

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    Well ya gotta do what you gotta do at times ,can't argue that .I screwed my shoulder up firing a 200 T with it above my head in Oct that is just now getting back to normal . I keep forgetting I'm not 30 years old any more .
     
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  15. Basher

    Basher Pinnacle OPE Member

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    You havn`t worked on the older saws from when a length of fuel line with a grub screw acted as a vent, older pre emission saws vented both ways.
     
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  16. Al Smith

    Al Smith Pinnacle OPE Member

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    Depending on the make the tanks could have a cap with a check valve .If the check fails they have a tendency to spout fuel like old faithful . Those are real old .
     
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  17. Pony

    Pony Active OPE Member

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    Actually I have an old stihl 021 with exactly that type of vent. I'm not arguing with you as it's been a while since it needed any work but I do remember that it held enough pressure in the tank that when I took the carby off without releasing the fuel cap fuel kept shooting out the delivery line until I finally collected my thoughts enough to release the cap.
    Same with the stihl 041, 056, 076 and I'm sure others, that had the vent in the fuel cap. To my way of thinking when the cap starts venting fuel it's time to replace the small screw and tube which fixes the fuel leak.
     
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  18. 67L36Driver

    67L36Driver ONE OF THE GREATEST!

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    The client/owner of the 056 lives near Lincoln, Nebraska. With all the flooding along the Missouri River, he can’t get to St. Joseph to retrieve his saw.

    Interstate 29 is closed from the Iowa line to 30 miles north of Joetown.

     
  19. hseII

    hseII AKA - Kim's Husband

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    Dang!!

    I’ve eaten lunch in St. Joseph.

    Hopefully they will all Survive & get back to Normal very Soon.


    Sent from my iPhone using Tapatalk Pro
     
  20. Mastermind

    Mastermind Leader Of The Clique Staff Member

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    Hey Carl.....pulling it over slowly will prime the carb as well, or better than pulling it fast.

    #oldfartsrule
     
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