Here's the synopsis:
I broke a water pump bolt off in the block during the winter, and finally got around to trying to fix it yesterday. It was broken off flush inside the block.
First I drilled into the bolt and put in an easy out, heated the block, went to twist, and the easy-out broke off INSIDE the bolt, INSIDE the block.
In hindsight, I made a couple mistakes. I'd never used EZ-outs before, and probably didn't educate myself enough. Most likely, I didn't drill in deep enough, and secondly, I probably used too small of an EZ out. I used the one recommended for bolts 5/32-7/32, and as most of you know, water pump bolts are 5/16. My only feasible defense is that my buddy, who will remain un-named, and whose EZ outs they were, handed me the EZ out and recommended nothing to the contrary....
OH well.
After that broke off, I went and bought titanium bits to try to drill through the EZout/bolt, which I've been told is alomost next to impossible. The titanium bits did little more than make a dent in it, didn't grab any metal at all.
SO, a friend of mine is getting his hand on some carbide bits for me today, which he said "if anything can drill through the EZout, it will be carbide. If not: machine shop time."
So, worse comes to worst, and the carbide doesn't get the job done, which for some reason I don't think it will, what do you guys estimate a job like this might run me at a machine shop?
I really don't want to have to pull the whole block, but ya have to do what ya have to do, right?
Would you guys have any other alternatives or tricks I might be able to try if the carbide doesn't work, or is a machine shop in the near future?
Thanks to all,
Jeremy
I broke a water pump bolt off in the block during the winter, and finally got around to trying to fix it yesterday. It was broken off flush inside the block.
First I drilled into the bolt and put in an easy out, heated the block, went to twist, and the easy-out broke off INSIDE the bolt, INSIDE the block.
In hindsight, I made a couple mistakes. I'd never used EZ-outs before, and probably didn't educate myself enough. Most likely, I didn't drill in deep enough, and secondly, I probably used too small of an EZ out. I used the one recommended for bolts 5/32-7/32, and as most of you know, water pump bolts are 5/16. My only feasible defense is that my buddy, who will remain un-named, and whose EZ outs they were, handed me the EZ out and recommended nothing to the contrary....
OH well.
After that broke off, I went and bought titanium bits to try to drill through the EZout/bolt, which I've been told is alomost next to impossible. The titanium bits did little more than make a dent in it, didn't grab any metal at all.
SO, a friend of mine is getting his hand on some carbide bits for me today, which he said "if anything can drill through the EZout, it will be carbide. If not: machine shop time."
So, worse comes to worst, and the carbide doesn't get the job done, which for some reason I don't think it will, what do you guys estimate a job like this might run me at a machine shop?
I really don't want to have to pull the whole block, but ya have to do what ya have to do, right?
Would you guys have any other alternatives or tricks I might be able to try if the carbide doesn't work, or is a machine shop in the near future?
Thanks to all,
Jeremy