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Pressure vacuum tester for Husky

Discussion in 'TreeStuff.com' started by palbin, Mar 8, 2015.

  1. pantelis

    pantelis Addicted to ArboristSite

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    yes some times must take a ton of pills until you find a small shittty problem.
     
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  2. pantelis

    pantelis Addicted to ArboristSite

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    The stihl and husqvarna dont give warranties for the tools sorry. even for the MDG1 or the AUTOTUNE DIAGNOSTIC so buy from ebay or amazon
    you happy your wallet happy;);)
     
  3. palbin

    palbin ArboristSite Operative

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    How sensitive is it with possibly minute leaks in im-
    pulse hose?

    (One of mine such hoses looks spledid in pinciple,
    but possibly as it could have been "shaken" a little
    at its fittings due to vibrations to become ever so
    slightly untight - just a (hopeful :) ) guess - should
    be easily fixable in that case with tie-wraps (if that
    is the right glossary) I suppose - which I have
    plenty of ... .)
     
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  4. pantelis

    pantelis Addicted to ArboristSite

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    A lot of saws have some common problems , to have a generally idea the saw must hold pressure and vaccum for long time maybe loose a little but its other think to loose 1 psi after 2 minute and other after 5 seconds , some times the temperature and the vibrations deform a little some parts so a just a little leak its not the end of the world, yes you can use tie-wraps but better go to something more oem solution.
     
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  5. lone wolf

    lone wolf ArboristSite King

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    Very!
     
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  6. palbin

    palbin ArboristSite Operative

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    So _ I bought a Mityvac MV8500 pressure/vacuum kit
    as well as a Mityvac MV5530 compression kit for a total
    of 233 USD = 210 EUR from the USA - will have them
    here within a couple of weeks or so - Mityvac MV8550
    kit has scale pressure/vacuum range +/- 60 psi /4 bar
    which seems too hefty for chain saw testing ... Mityvac
    MV8500 seems to be the right kit for chain saws with a
    scale pressure/vacuum range +/- 30 psi / 2 bar ... .
     
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  7. pantelis

    pantelis Addicted to ArboristSite

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    you only need 7 psi for the tests no more
     
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  8. palbin

    palbin ArboristSite Operative

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    If you look in 346xp workshop manual you are right
    that many tests are 0,5 bar = 7 psi - but some are mo-
    re pressure - for example that of decomp valve which
    is 0.8 bar = 12 psi-ish ... anyway it was no I who start-
    ed the talk about Mityvac-stuff :) ... .
     
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  9. pantelis

    pantelis Addicted to ArboristSite

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    before some weeks i have a stihl for repair was full of leaks have leaks even in the handles, the mytivac can not give me a good indication and i deep the saw in water, but i forget to low down the compraised air , i push the triger and ..................... a noise pop listen , its the clutch side seal, go out from the much pressure,
    so dont go over 7 or 8 psi
     
  10. palbin

    palbin ArboristSite Operative

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    OK - thanks - the last thing I want to do is to impose
    unnecessary crank-shaft-seal-substitutions on myself
    ... that's for shure ... .
     
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  11. lone wolf

    lone wolf ArboristSite King

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    I dont dip them in water any more I just spray the whole thing with lots of soapy water and look in all the suspected places seals and gaskets being the usual. I test the fuel line, carb, the tank I do vac and pressure vac should not hold pressure should, I check impulse line everything.
     
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  12. pantelis

    pantelis Addicted to ArboristSite

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    i use the soapy water also , sometimes i deep them in water but the most times soapy water
     
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  13. lone wolf

    lone wolf ArboristSite King

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    Anyone who wants to work on saws should buy a vac tester.
     
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  14. pantelis

    pantelis Addicted to ArboristSite

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    now i have a 260 that the rpms dont go over of 10k , tomorow it have a good carb hammer test , it have break my head :angry:
     
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  15. lone wolf

    lone wolf ArboristSite King

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    Switch it with another.
     
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  16. pantelis

    pantelis Addicted to ArboristSite

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    its the eyes and the ears of the servicing saws, all others are in second position.
     
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  17. lone wolf

    lone wolf ArboristSite King

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    Saves money a lot of people just buy parts and try.
     
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  18. pantelis

    pantelis Addicted to ArboristSite

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    this will do tomorow buy a new carb and end of story
     
  19. lone wolf

    lone wolf ArboristSite King

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    And if same :dumb:
     
  20. pantelis

    pantelis Addicted to ArboristSite

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    let them try
     

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