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42 Special to 242xp

Discussion in 'Chainsaw' started by JohnMaddux541, Jun 8, 2019.

  1. JohnMaddux541

    JohnMaddux541 ArboristSite Member

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    Does anybody know if the 42 carb will work on the 242xp? I got the 242 cylinder on my 42 special and the carb screws won’t fit on the 242 jug. Just curious if I will need to find screws, block, carb, filter holder etc..
     
  2. Huskvarna hotellgäst

    Huskvarna hotellgäst ArboristSite Operative

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    That doesn't sound right. AFAIK the carb bolts (50 34 969-03) and inlet block (50 18 620-02) are common to 42, 242, 246, 154 & 254.
    Re the carb, IPL "242 - 1.1994" lists HDA 34, 84 & 98 as standard fitting at various times.
     
  3. JohnMaddux541

    JohnMaddux541 ArboristSite Member

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    I’ll have to look into it again tonight maybe something wasn’t right
     
  4. Joshua Tabora

    Joshua Tabora ArboristSite Member

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    +1. I just did the same, it should be just fine
     
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  5. Tor R

    Tor R Addicted to ArboristSite

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    There was differences between 242 top ends through its era.
    Their first top end was made by Mahle and it came with M5 carburetor bolts, that until s/n 242G 8470397, 242 8460046.
    After those s/n's all 242 top ends came with M4 bolts.

    If it is a M5 top end, you need two bolts, # 503 20 21 05 and one gasket # 501 79 71 02.
     
  6. Huskvarna hotellgäst

    Huskvarna hotellgäst ArboristSite Operative

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    I'm curious Tor. Were the original 503 20 21-05 bolts without insulating sleeves and so the thread size went from M5 to M4 when the smaller cross sectioned bolts with sleeves were introduced?
     
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  7. Tor R

    Tor R Addicted to ArboristSite

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    that is correct.

    242, back in 87-late 88, it was basicly a modificated 238, had unique crank, top end, muffler, top cover.
     
  8. Huskvarna hotellgäst

    Huskvarna hotellgäst ArboristSite Operative

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    Thanks for confirming my idle speculation. :)

    In Australia we were still making 444 & 44 in 1988. The market for high-performance small saws was considered too small to justify introducing 238 & 242 so I never got to look inside one of them.
     
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  9. JohnMaddux541

    JohnMaddux541 ArboristSite Member

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    Thanks for all the insight!! It appears someone tapped the holes out and I never noticed:( so I’m gonna see if I can find a helix coil for them.
     
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  10. Huskvarna hotellgäst

    Huskvarna hotellgäst ArboristSite Operative

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    How did it go? Was there enough "meat" to drill for a helicoil?
     
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  11. JohnMaddux541

    JohnMaddux541 ArboristSite Member

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    I haven’t even tried yet:( i’ve been helping my dad and uncle after work with the pitiful hay crop. Hopefully will get to it later this week, I sure hope I can save it
     
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  12. JohnMaddux541

    JohnMaddux541 ArboristSite Member

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    So I got the helicoils for the cylinder and all I had to do was screw them in! At first bought a meteor piston but heard those didn’t work so I began searching for something else. With the help of an AS member I picked up a NOS OEM piston. I got it all together the other night and couldn’t get any fuel so I bought a tank vent and a filter and put that stuff on tonight. Unfortunately wasn’t able to start it tonight because of fire season and neighbors but I’m excited to try tomorrow! Here’s a pic of the saw 57FF8E12-C18F-497B-AB52-24BE7E3EEFC8.jpeg
     
  13. Huskvarna hotellgäst

    Huskvarna hotellgäst ArboristSite Operative

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    Now all you need is a 242XP sticker.
     
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  14. JohnMaddux541

    JohnMaddux541 ArboristSite Member

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    Hopefully that’s all I need!
     
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