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Thread: Husqvarna 357XP Pop up piston Cylinder air leak

  1. 07-14-2012, 02:02 PM #1
    spudulike
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    Husqvarna 357XP Pop up piston Cylinder air leak

    Done a pop up piston on my 357XP but the turned down cylinder has meant the bottom of the inlet connection on the cylinder has had half the lower part machined off and this is causing an air leak despite using sealent.

    I am overcoming the issue by machining down the alloy wall the rubber boot plastic retaining wall sits on and have also put a spacer between it and the alloy wall to force it against the cylinder and all should be good.

    Has anybody else had this issue with machining down their 346/357s cylinders?
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  2. 07-14-2012, 02:03 PM #2
    blsnelling
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    How much did you take off the base?
    Brad - Snellerized Saws

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  3. 07-14-2012, 02:06 PM #3
    Stumpys Customs
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    I didn't have any issues on them. I've takein as much as .065" off the base on them.
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  4. 07-14-2012, 02:07 PM #4
    spudulike
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    That was 0.7mm Brad, same off the Piston and the base gasket has been dropped - squish is 0.52 - 0.55mm!
    Stihl 009
    Husqvarna 345
    Husqvarna 181 SE (ex Army/Nato)
    Mcculloch Power Mac 6
    JoBu L6
    Jonsered 630 Super 11
    Stihl MS171
    Husqvarna 335XPT
    Jonsered 625 11 X2
    Jonsered 820
    Husqvarna 141
    Stihl MS200T X3
    Stihl 020T X3
    Husqvarna 480CD
    Husqvarna 357XP
    Jonsered 2149
    Stihl 048
    Husqvarna 266
    Husqvarna 162
    And many more!!!



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  5. 07-14-2012, 03:25 PM #5
    sunfish
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    And one of the benefits of machining the base, is you get to use the base gasket.
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    Don

    346xp OE, 346xp NE, 357xp, 562xp, Stump Broke 365xpw, 359, Super Split, Kubotas' and some other stuff...
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  6. 07-14-2012, 05:24 PM #6
    blsnelling
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    Quote Originally Posted by sunfish View Post
    And one of the benefits of machining the base, is you get to use the base gasket.
    If...the base doesn't get too thin.
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    Brad - Snellerized Saws

    Have a 201T that doesn't run like you expected? Need a new one that's already modded and ready to go? PM me for details.
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