tw3ak

Well I snapped a valve cover bolt in the head yesterday. Tried to drill it out with little luck. I do not want to remove the head to take it in to get fixed.

Is there a special bit I can use to drill it out? I broke about 5 bits trying.

tw3ak

And yes I tried an easy out.

Redneck1465

Try a reverse bit. That should grab backwards and help spin the bolt back out if possible.

NotchAbove

Depending on where the bolt snapped, here is what you want to do.

1) Flatten out the break with a dremel.
2) Center Punch the Bolt. This is important as it will give the drill bit something to bite into and will be in the center of the bolt.
3) Drill it out, using a regular drill, or a reverse drill bit, either one.

wildcobrar

On some bolts I take a nut that just fits the bolt, even if it is broke off flush and I center the nut over the bolt and mig it onto the bolt. Then I try to thread it out. You make have to make several attempts before you get it out but that with the combination of heat from welding will get the job done.

Joe

Drag5.0mustang

yea i would try to weld a nut on whats left of the bolt. but if you dont have a welder there's this: http://4grabit.com/Default.asp?bhcp=1

Portmaster

Take a very sharp center punch and put it dead center of the broken bolt and give it a light tap. Take the smallest drill bit you have and drill down the center of the bolt. (If the bits you have wont drill it buy a new set of bits because it's not that hard of a bolt) I'd start with about 1/8 inch bit and mark the depth of the hole but just putting it into another hole You then use a peice of masking tape and put it around the bit so you don't drill to deep. Keep moving the drill size bigger until you get to the threads. You can take a pick and just pick the rest of the bolt out or just run a tap down the hole.

It's just a matter of being patiant and keeping the drill angle correct.

ttocs

after spending 3 days trying to get mine out, I just said F-it and used it as an excuse to upgrade the heads..........