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Carburetor jet for D7 17a needed

Discussion in 'Dozers' started by LG 78, Jul 16, 2021.

  1. LG 78

    LG 78 Well-Known Member

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    Location:
    King Country NZ
    Hi everyone
    Ive had my old 17a out working and for some reason the bottom fuel jet on the carburetor on the starting engine has come loose and fallen out during operation. Either that or some bugger is trying to have a laugh and has removed it
    Would any of you good folks happen to have one of these kicking about that they coild send off to little old New Zealand? Quite happy to pay as shes in a gully and I cant start her without it
    Any help as all ways would be greatly appreciated
     
  2. Old Magnet

    Old Magnet Senior Member

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    I believe that uses a Zenith 261-8 carb.
    Is it the Main Jet Adjustment Screw Assembly you are looking for?
    That would be a Zenith part number C71-42.
    Good luck finding one.
    261-8 Series Parts Diagram.JPG 261-8 Carb Parts Zenith.JPG
     
  3. Old Magnet

    Old Magnet Senior Member

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  4. Old Magnet

    Old Magnet Senior Member

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    Comes down to a choice between a Cat #5M5446 or a 9F2903 adjustment screw assembly. Need carb number to pin it down.
    Plenty of both listed on Machinery Trader Parts Search.
     
    LG 78 likes this.
  5. LG 78

    LG 78 Well-Known Member

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    Location:
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  6. LG 78

    LG 78 Well-Known Member

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    Old Magnet to the rescue again thanks yes it is the whole of part 12 shown on the diagram Main jet adjust ment
    Will have a look on eBay cheers
     
  7. Old Magnet

    Old Magnet Senior Member

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    What's the Zenith tag number on the carb?
     
  8. LG 78

    LG 78 Well-Known Member

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    cant find any tag to speak of only this under side of the air cleaner port looks something like 3.119
     

    Attached Files:

  9. Old Magnet

    Old Magnet Senior Member

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    What the s/n of your tractor. Can match the carb that way although chances of it being changed after so many years might not be all that accurate.
     
  10. LG 78

    LG 78 Well-Known Member

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    This one is #6658 17a
     
  11. Old Magnet

    Old Magnet Senior Member

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    That s/n originally had a Cat #5H1227 carb and uses the 9F2903 adjustment screw assembly. Same as the Zenith C71-42 part number.
     
  12. LG 78

    LG 78 Well-Known Member

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    Your a legend thank Old Magnet
    Had my 13 yr old son turn up from being on holiday today and had him using smaller arms than I and he found the bloody thing in the belly pan probably be 1000 to 1 odds
    thanks so much for your help though
     
    56wrench likes this.
  13. Nige

    Nige Senior Member

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    G..G..G..Granville.........!! Fetch your cloth.
    Go buy yourself a lottery ticket, and if it wins anything donate the money to your son.
     
    56wrench likes this.
  14. Old Magnet

    Old Magnet Senior Member

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    Wow! Long odds for sure....an "atta boy" for your son.
    Never know what you may find in those belly pans.
     
    56wrench likes this.
  15. Nige

    Nige Senior Member

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    G..G..G..Granville.........!! Fetch your cloth.
    Usually at least one 9/16” wrench.....
     
    bccat and LG 78 like this.
  16. Don Shilling

    Don Shilling Well-Known Member

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    Occupation:
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    Location:
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    I dropped the pans on my Komatsu and found the original wing nut for the air cleaner, a 38 bullet, and a spare key for the start switch!