[NSRCA-discussion] OS 1.40 Case

[Ron Van Putte]

Hmmmmm.  Sounds like a guy with lots of experience with broken taps.

I was going to add some words of wisdom here, but I was doing a  
repair job on my daughter's car today and had finished tapping a hole  
for a 4-40 screw.  In the process of backing the tap out, you guessed  
it - broken tap!

Ron Van Putte

On Jun 17, 2007, at 2:07 PM, Fred Huber wrote:

> If you can get 3 thin pieces of musc wire inserted... in the slots  
> made to let the metal shavings out as you tap threads... you can  
> usually work the broken tap out.
>
> You have to work carefully... or you'll mess up the threads.   
> Typically the tap will have broken due to trying to go in too fast  
> with the hole not pilot drilled to a large enough diameter, so it  
> may catch on the burs it made as you try to extract it.
>
> Turn left 1/2 turn.
> Turn right 1/4 turn.
> Remove the pin drive (3 wires)
> Shake out fragments of metal.
> put the pin drive back in.
> repeat.
>
> If you get a few threads of the tap exposed you can usually grab it  
> directly with locking pliers.
> ----- Original Message -----
> From: Ron Lockhart
> To: NSRCA Mailing List
> Sent: Sunday, June 17, 2007 7:55 AM
> Subject: Re: [NSRCA-discussion] OS 1.40 Case
>
> While on that subject, I'd be interested in a case, with good  
> screws, retapped is OK if working well.
> Or if anyone has a solution to an 8-32 tap broken in exhaust port  
> threads?
>
> Reply off list is good.
> Later, Ron Lockhart
> ----- Original Message -----
> From: Ken Velez
> To: NSRCA Mailing List
> Sent: Saturday, June 16, 2007 11:13 PM
> Subject: [NSRCA-discussion] OS 1.40 Case
>
> Hi all,
>
> I'm looking for an OS 1.40 RX case with the exaust port screws  
> treads in original condition (not taped) or a parts engine with a  
> good case or a used engine. Please reply off list.
>
> Thanks,
>
> Ken
> kvelez at comcast.net
>
>
>
>
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