Always a great feeling

 

That's why it's easier to tap the aluminum intake and not those steel tabs

 

Get yourself HSS or Tungsten (TC) taps and this will not happen. I have broken nearly all of my carbon taps, as they break I replace them TC a little more expensive but well worth the additional money as they cut far better/cleaner thread.

 

Luckily I went and got another better tap and finished the rest.

This was my first time using a tap.. I could tell after the first 4 the metal seemed to be getting hotter and tougher... then snap!

 

Do you use cutting oil? As it seems you are using a drill press or other motor, rather than a manual drive.


I rarely use power to thread or tap, relying on hand tools. I do have a selection
of power, drill press included.
Carl

 

darn, i'm left out again.

my manifolds dont have any holes, neither the heads!

 

dont tell anyone... I didn't use cutting oil the first tap 🤡 I did just use hand tools though.

 

For cutting fluid I use Auto trans fluid as I have loads of it, you can also use WD40

 

I have a set of 12 with the holes already welded if you want them just cover shipping. I decided to just weld the holes on the manifolds when I pulled them off.

 

Thanks for the offer, but I got them all setup and done.

 

If you are making new threads HSS is the way to go - those carbon steel taps they sell at the hardware store aren't good for much beyond cleaning up existing threads. Cutting oil helps a lot too - WD40 is good for aluminum, for steel I use "pipe threading oil", the heavy dark brown smelly stuff. That's a pretty multipurpose cutting oil. If you are going to do lots of tapping, there's stuff made especially for that purpose - "Tapmagic" I think is one name that comes to mind. If you are tapping a hole that you can't get to the other side of, giving the tap a heavy coat of grease helps hold on to the chips so they don't fall inside somewhere you can't access to clean.

Hope this helps! Eric

 

👍🏼

 

Glad you got it sorted. If anyone else has a use for them, the offer stands.