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EZ Outs are USELESS!

 
  #1  
Old 02-11-2019, 07:59 AM
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Default EZ Outs are USELESS!

There, I said it!

Rant on\

Seriously though, who ever thought they could extract a stuck bolt using something that's SMALLER in diameter than the broken bolt to begin with? Unless it's made out of Unobtanium, that's gonna break too... Oh, and by the way, center a drill bit perfectly into the broken bolt to give the teeny-*** EZ out somewhere to bite down... F#$king snake oil, right up there with Marvel Mystery Oil and polishing your combustion chamber and exhaust port.

Everyone, raise your hand if you've ever successfully extracted a perfectly normal exhaust stud? It was a bitch, right? Two nuts, butted up tight to each other then slowly backing the stud out without allowing both nuts to spin on the stud. That's because IT'S AN INTERFERENCE THREAD pitch. You think a pissy little EZ Out is gonna win that battle?

Rant off/

The only time I was successful with an exhaust stud replacement was by removing the head, chucking it up into a vice and drilling the old stud out with a 27/64" drill bit. Then I tapped for 1/2" x 13 and bottomed out an aluminum bolt (with JB Weld for loctite), then cut flush with head casting. Last step was tapping for the 5/16" exhaust stud and installed with PLENTY of red loctite. I suppose I could have done the Helicoil/Timesert thing, but one aluminum bolt with the rest of the tools on hand was way cheaper than a damn helicoil kit.
 
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  #2  
Old 02-11-2019, 08:08 AM
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Its the cheap *** steel were getting in todays market all the new easy out stuff is all crap these days they break way to easy.
 
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Old 02-11-2019, 08:13 AM
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In some applications, easyouts are useful. Mostly the application is pissing off the user and causing cursing. I've always had better luck with a lefty drill bit, and sometimes getting lucky that it grabs and spins out. More often than not, it drills out the offending piece and you retap threads as appropriate. There is a reason I have a few endmills on hand when doing exhaust studs..... they will cut through an easyout, and also will give a flat surface so a drill wont walk.
 
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Old 02-11-2019, 08:22 AM
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Ummm. Easy outs have saved my bacon many many times. Can't stress enough, the importance of proper prep and drill angle... Almost as important as quality tools, penetrating oil and the patience of a monk.
 
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Old 02-11-2019, 08:25 AM
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Correction~ mediocre quality EZ outs are useless!
 
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Old 02-11-2019, 08:29 AM
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Exhaust studs are a bitch to get out. Ya got a steel stud in an aluminum head. From heat cycling they more or less weld themselves together guaranteeing EZ Out breakage. Best off to take it to a reputable Machine Shop, they have all the tools to do it without the aggravation.
 
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Old 02-11-2019, 08:51 AM
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Using an Ez-out is like an art that takes care and patience. First thing is a 50/50 mix of acetone and ATF for penetrating oil, then using a small, sharp center punch to start the hole in the exact center of the broken stud or bolt. The broken part is rarely flat, so tilting the punch and gently pecking and adjusting the angle will get you closer to the center. Follow up with a good whack when the center is as close as the eye can tell. I start out with a #1 center drill and follow with a 3/32" left hand drill. Drill all the way through and depending on the condition that caused the bolt/stud to break, this may do the trick. If not, I use a square Ez-out and give it a shot. I NEVER use spiral Ez-outs. Turn it til just before it breaks, LOL. If that doesn't get it, squirt some of that penetrating oil in the hole and start stepping up in sizes with LH drills and square Ez-outs til you get close to the minor diameter of the thread. After that, you're into the realm of a different world that will require some machining skills.
Here's a link to some square Ez-outs.
Amazon Amazon
In my early days in a repair machine shop, I learned to grind my own out of a HSS tool blank. Over the years, I broke WAY more spirals than squares.
 

Last edited by Lakerat; 02-11-2019 at 08:54 AM.
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Old 02-11-2019, 08:53 AM
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Matt ... I was with you right up to the point you "dissed" Marvel Mystery Oil .... :<(
 
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Old 02-11-2019, 08:56 AM
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I gave up on Easy Outs years ago ... I've had remarkable success with the "splined type" ( Snap-On ) ... Rigid makes them also ... Of course you can't just jam them in there and rage on them .

https://www.toolup.com/ridgid-35585-...SABEgL_4fD_BwE
 
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Old 02-11-2019, 08:57 AM
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This:
Originally Posted by MTBIG G View Post
Ummm. Easy outs have saved my bacon many many times. Can't stress enough, the importance of proper prep and drill angle... Almost as important as quality tools, penetrating oil and the patience of a monk.
 

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