bolt rung off!
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Senior User
Joined: Jul 2002
Posts: 122
Likes: 0
From: VA
bolt rung off!
Yesterday while replacing the OE water pump on my 91 f150, I rung the top bolt off (all were in bad shape after nearly 20 yrs. and close to 200k) in the top hole. This one isn't in the block but on the top. I then drilled and rung the "easy out" bit off in the stuck bolt. I was just wondering if there were any tips for drilling out the hole with the "easy out" in it. It is clearly harder steel than any of the bits I had on hand. I am planning to get some carbide bits and drill it out. If I damage the threads in the bolt hole I was planning to either re tap it or drill it all the way out and put a longer bolt in it with a nut on the backside.
Any suggestions???
Any suggestions???
Save the old ones
Joined: Dec 2002
Posts: 666
Likes: 4
From: Boyne Mich
That's the worst. When you drilled the hole for the easy out, did you go all the way through? if so, then try pushing the easyout backwith a short dowel the the size of the drilled hole, with a pair of channel locks. If it is a blind hole,(not drilled through), drill the tiniest drill you got all around the easy out. then work it out using small pick, chisel, needle nose. what ever you can.
The chances of drilling through an easyout are nearly imppossible.
Longer bolt and nut are pretty standard on the top three water pump holes. I have been driving one like that for years.
The chances of drilling through an easyout are nearly imppossible.
Longer bolt and nut are pretty standard on the top three water pump holes. I have been driving one like that for years.
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
Likes: 6
From: Raphine, Virginia
Can't help but that is the reason I threw away the rest of my EZ out's. Just so I would not be tempted to use them. If you're going to drill a hole for it, might as well drill and retap the hole. A reverse drill bit also works sometimes in backing the bolt out. Just for future reference. Good luck.
Laughing Gas
Joined: Dec 2003
Posts: 1,062
Likes: 12
From: Ford, WA
i had the same exact thing happen to me on my 90 F250.. only for an exhaust manifold bolt...broke off about 1/8" in the hole.. drilled a hole for the ez-out, stuck the ez-out in, gave it a twist and SNAP... never did get it out.. just skipped that bolt.. thankfully it doesn't leak..
Lead Driver
Joined: Sep 2003
Posts: 7,018
Likes: 210
From: SoCal
The biggest concern when you snapped the original bolt is that the threads are pretty much welded together by corrosion. So if a big bolt broke off, there is little chance that a smaller shank, such as that of an EZ-out, will do much better.
In those cases where you snapped the bolt below the face of the hole, can you just drill out the bolt? If you started with a small hole for the EZ out, it would serve as a pilot for a bigger drill. Then tap the bigger hole for a heli-coil insert.
In those cases where you snapped the bolt below the face of the hole, can you just drill out the bolt? If you started with a small hole for the EZ out, it would serve as a pilot for a bigger drill. Then tap the bigger hole for a heli-coil insert.
