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  1. #1
    Chrisrokc's Avatar
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    Jetworks, tapping the pipe

    I have never tried to thread something my self. How do I do this? Should I just take it to a local machine shop?

    I am doing the fercho method!


  2. #2
    mrbtd's Avatar
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    It cost all of $7.50 a hole to do over at my local Napa. Make sure you have the correct size for the side opposite the waterbox. One of the Fercho drawings show it incorrectly

  3. #3
    Hydrotherapy's Avatar
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    first mark out with center dot/punch where hole to be located..
    small pilot drill to keep central say 3mm on the 1/8 npt thread..
    them drill out to drill size for thread..
    counter sink a small area on top of hole to be tapped to locate tap better and aid straightness..
    start with first tap and end with plug tap,keeping tap straight with a good ammount of cutting compound (trefolex) ect..
    go slow and a good rule of thumb one turn in, two turns out to clear swarf..
    if in the water jacket a plug thread starts to far up tap (as npt is tapered) butcher/grind tap down to get full thread taper before hitting the innner wall..
    explain to work why tap butchered as your working on jet ski...

  4. #4
    All hail the Chief! fullboogie's Avatar
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    Heh heh - you said "tapping the pipe"!

  5. #5
    Mr Bill's Avatar
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    Lube the hole before you tap the pipe!

  6. #6
    Chrisrokc's Avatar
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    Quote Originally Posted by Mr Bill View Post
    Lube the hole before you tap the pipe!
    Rofl!

    I think I am going to see if my local napa does it.

  7. #7
    Nothin' runs like a Deere IowanGPR's Avatar
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    hahah, walk in and say "can you tap my pipe for me?"

    lmfao

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