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170 floating sprocket

Discussion in 'Chainsaw' started by abs111999, Oct 4, 2019.

  1. abs111999

    abs111999 ArboristSite Operative

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    Do I want the 7 0r 8 floating sprocket 3/8 050 for my Stihl 170....?
     
  2. HarleyT

    HarleyT Tree Freak

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  3. abs111999

    abs111999 ArboristSite Operative

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    bad answer..I am installing a floating sprocket...does it matter 7 or 8? And I need a new drum also yes???
    anybody got a good ebay link for a package...Oregon brand is good..
     
  4. stilh036prohog

    stilh036prohog ArboristSite Operative

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    No you need to down size
    Its a 170.
     
  5. HarleyT

    HarleyT Tree Freak

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    Is your answer better?
     
  6. HarleyT

    HarleyT Tree Freak

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    He needs a 6.........

    And a 3/8 lo/pro....

    6.jpg
     
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  7. rogue60

    rogue60 ArboristSite Operative

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    Going from the stock 6t spur to a 7t or 8t rim sprocket will increase chain speed with less torque.
    With the very soft hardwood you guy's have there it should work fine? running a 7 or 8 tooth rim and .050 low pro chain.

    I tried a 7t rim with .050 low pro chain on my ms170 in hardwood here and it was a fail the 170 didn't have the power to pull the chain at even a half descent speed
    I went back to the 6t spur sprocket.

    The only way for you to know if running the setup you want to run is try it for yourself in the timber you have.
     
  8. stilh036prohog

    stilh036prohog ArboristSite Operative

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    What?
     
  9. Franny K

    Franny K xyz

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    The 6 tooth spur is likely the proper advice, likewise the no answer in post #2. If you do get a rim drive set up get Genuine Stihl as that is the only common way to get a sprocket of the diameter and tooth contour for low profile chain. Not really any more $ either. I would use the 0.043 chain, I think the 8 tooth picco sprocket has been discontinued anyway. Part number 1123 007 1030. Try this one it may fit as small a saw as you have, ask the dealer.
     
  10. Franny K

    Franny K xyz

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    There is an ebay listing for such a device if you search. It comes with the clutch shoes and drum and sprocket but others that have bought it have posted enough pictures so the link could be considered good but not the product. Assume this is the one other threads have discussed. that listing would seem to indicate the 170 is compatible with the 211 through 251
     
  11. HarleyT

    HarleyT Tree Freak

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    He said mine was a "bad answer"....
     
  12. HarleyT

    HarleyT Tree Freak

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    He asked a "yes or no" question.
     
  13. Franny K

    Franny K xyz

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    He attempted to ask an 7 or 8 for an answer question.

    Then he wanted an ebay link instead of searching on ebay and asking it a posted link would be a good idea to purchase.
     
  14. HarleyT

    HarleyT Tree Freak

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    Yeah, true.

    We all have the same internet....
     
  15. abs111999

    abs111999 ArboristSite Operative

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    Unbelievable. So can I get a 6 floating sprocket and drum??? THe spur drums suck. MIne is already beat to ****.
     
  16. HarleyT

    HarleyT Tree Freak

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    Any sprocket that will fit on a 021,023,025 ms210, ms230, ms250 will fit on a ms170/180
     
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  17. abs111999

    abs111999 ArboristSite Operative

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    I use the 170 for brush and carpentry so power isnt really the issue...
     
  18. HarleyT

    HarleyT Tree Freak

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    3/8" P

    1123 640 2073 6 – – –

    1123 640 2072 7


    Picco spur part numbers.
     
  19. HarleyT

    HarleyT Tree Freak

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    Picco drum{rim} number

    1123 007 1030

    Rim part number-7 tooth

    0000 642 1240
     
  20. HarleyT

    HarleyT Tree Freak

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    No 6 tooth rim.
     

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