drill bit sizes for carb jets

Discussion in 'Mech Tech' started by johnnysensi, Mar 20, 2014.

  1. Anyone know the uk sizes for drill bits that u rejet carbs with......or know where to buy the bits in uk...
    Tar muchly
     
  2. The hole sizes are usually in hundredths of a mm.
     
    johnnysensi likes this.
  3. Zed

    Zed Gradually getting grumpier

    Try ebay. ;)
     
    johnnysensi likes this.
  4. Nice one bruv....
     
  5. Thank u zed
     
  6. This...or, a mate used to drill out his carb jets using bits for drilling holes in printed circuit boards.
     
    johnnysensi likes this.
  7. So a 150 weber jet would be 1.50 drill bit hss
     
  8. Zed

    Zed Gradually getting grumpier

  9. 1.5mm, yes :thumbsup: 135 = 1.35mm, etc...
     
    johnnysensi likes this.
  10. What do these jets look like?
    I may be able to help.
     
  11. As a side note, jets should be reamed and not drilled!!

    It causes the fuel to not flow efficiently through the jet!! :thumbsup:
     
  12. Basic weber 34.ict jets bruv........i aint paying for jets from eurocarb after the bullcrap email he sent saying there jetted to suit....so im goin old skool and drill em out meself
     
  13. Well im hoping the spiral drill pattern will help atomise the fuel....??
     
  14. Suppose ill have to solder emulsion tubes and redrill to f6-what size and apttern are f6 tubes???
     
  15. If you know the size you want send them to me and I'll open them out. That's why I wanted to know what they look like, I need to hold them somehow on the wire eroder.
     
    paradox likes this.
  16. I dont mind drilling them out bruv......thanks for offer,im trying to get on the road this weekend,well this week sometime....cheers oscar mate
     
    oscar likes this.
  17. Just something to be aware of dude :thumbsup:
     
    johnnysensi likes this.
  18. Paul if dont work....ill ream myself lool
     
    Paul Weeding and oscar like this.
  19. Brass has a nice habit of snatching the drill bit , would of thought it either needs to be done in a lathe anyway to get a decent hole , aren't they core drills ?
     
  20. Im only larging the hole by mm.....im thinking ill get away with it.....im going to use the mighty dremmel and hobby hss drill bit....
     

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