Stripped header holes, need advice

Richard Strickland richard.s at allied-callaway.com
Fri Apr 1 12:47:09 AKST 2005


When I've really been pressed and I've drilled it out and couldn't get the tap to surface--I cut a couple of slits with a cut-off wheel in a cut-off 8/32 bolt and used it as a tap.  Worked OK.

RS
  ----- Original Message ----- 
  From: Ken Velez 
  To: discussion at nsrca.org 
  Sent: Friday, April 01, 2005 3:28 PM
  Subject: Re: Stripped header holes, need advice


  Hi Keith, not trying to contradict Bob, just my thought. I would try drilling and taping it to 8/32 before using the heli-coil. The reason is the hole diameter. Make sure that there is enough material to use a heli-coil, and also keep in mind, once you drill for the heli-coil next will be replacement if anything goes wrong. with the drill and tap you still have one more go at it. I tap an OS to 8/32 no problem.

  Ken
    ----- Original Message ----- 
    From: Keith Black 
    To: discussion at nsrca.org 
    Sent: Friday, April 01, 2005 2:38 PM
    Subject: Stripped header holes, need advice


    I have a Webra 1.45 that has had the threads stripped out of the screw holes that are used to mount the header. I need some advice on the best way to fix this.  Drill out and re-tap bigger? Heli-coil? Another solution?

    Not really sure what the best solution is. I'd appreciate suggestions if anyone knows what the best approach is.

    Thanks,
    Keith Black
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