Thread: FUBAR - again - How to drill carbide?

Tweet

Great ideas!!!

I had to look up Wire EDM too.
Eletrical Discharge Machining.

The bolt is the upper, first left of center timing cover bolt.

It did twist off during removal due to rust, as did the one at 9 oclock.
I progressively drilled and tapped the one at 9 oclock without any trouble.

I have considered going without that bolt, but if it leaks oil, I'm really going to hate myself. Looks like the punch and carbide bit are the plan.

The carbide ball sounds good too, if I can find one small enough.

I may never use an Ezy Out again.

Originally Posted by pat mccarthy

to get a e-z out s that is broke off i use a carbide ball mill in my mill or hand drill use the biggest size balll mill you can i have done this many time and works the best for me for studs e-z out s any time i use a easy out go to the biggest size you can i go to all most the root size of the thread size of what is broke off and i drill pass the stud or bolt and put some penetrate oil or hot bees waxs to help loosen the stud or bolt before i try the e z out

Pat I can see you doing this for customers that bring thier louse ups in for you to fix. I dont think you could be that ham fisted to break that many easy outs over a career of engine building.

Depends where the easy out breaks, If you are lucky and the shank shatters above the bolt like happened to me. I got a nut put it over the easy out shank and mig welded the center of the nut to the shank, while everything was still hot I squirted some oil down onto the threads.... Let it cool down but not stone cold, wound it back and forth a bit and just slowly backed it out, going backwards and forwards. Bit of a jaw clencher, but I got there in the end. Finished off by tapping to clean up the threads.

A special license should be made for the purchase of easy outs.
Just like what is required for electrical guys like elect engineers for useing any tool other than a screw driver.

Sounds like there are some guys here that make a good living fixing other guy's FU's

The old boy that taught me used to say " bust an easy out off and I'm taking a finger".... Still got all ten... only 8 work very well.

Originally Posted by southerner

Pat I can see you doing this for customers that bring thier louse ups in for you to fix. I dont think you could be that ham fisted to break that many easy outs over a career of engine building.

Depends where the easy out breaks, If you are lucky and the shank shatters above the bolt like happened to me. I got a nut put it over the easy out shank and mig welded the center of the nut to the shank, while everything was still hot I squirted some oil down onto the threads.... Let it cool down but not stone cold, wound it back and forth a bit and just slowly backed it out, going backwards and forwards. Bit of a jaw clencher, but I got there in the end. Finished off by tapping to clean up the threads.

i was taking to denny last night and told him that i wanted to pull all my post and photos down . i did tell him i was not going to post any more but for you southerner i will. no i still have may first set of e-z outs need some new ones. yes i have busted taps off .but if you have fix them you do not break as many. i trash taps when they go dull . i fix alot of other screw ups from others . the new cars with alum heads here in mich the EX studs rust up and i need to get EX heads studs out i mount off the stud hole to mill the heads so i fix them . so i can mill them

First post on here, hello everybody.

There is a machine made just for this purpose. It's a sinker type EDM (Electrical Discharge Machining) Called an Elox Tap Disintegrator. Won't say most automotive shops have them but the old ones will. If not an Elox then a sinker EDM (not wire cut) found in regular machine shops especially if they make tooling.

These machines can clean a tap or easyout out of a blind hole very nicely and leave the threads to be just cleaned up. Been there done that to many times.

Jud

Hey Jud, welcome.

Don