I need to remove a broken bolt from an aluminum engine block. Hoping some of you may have some ideas. Or, if someone can machine an extraction tool for me, I would be glad to pay. I read on the internet someone else had the same broken bolt as me. They machined a sleeve for the hole and used a reverse drill bit to extract the broken bolt. The need for the sleeve was to center the reverse bit down a blind hole. With a depth of 2.5", the sleeve also supports (or was attached to) the drill bit.
Bolt is broken off 2.5" deep.
Here is the broken bolt. It's about a 1/4" shaft.
The broken bolt end is recessed 2.5" down this hole. (The larger pipes to the left can be pushed out of the way)
More details: The location is on the front of the block. Six bolts attach the water pump. Four bolts thread directly into the timing chain cover (threads visible in the picture). Two of the bolts pass through the timing chain cover and thread into the block. This is on a 2003 BMW X5 v8 ( 4.4). The alternative is removing the timing chain covers. The cost of removing the covers is more than the car is worth. I want to at least try and extract the bolt before junking the car.
Bolt is broken off 2.5" deep.
Here is the broken bolt. It's about a 1/4" shaft.
The broken bolt end is recessed 2.5" down this hole. (The larger pipes to the left can be pushed out of the way)
More details: The location is on the front of the block. Six bolts attach the water pump. Four bolts thread directly into the timing chain cover (threads visible in the picture). Two of the bolts pass through the timing chain cover and thread into the block. This is on a 2003 BMW X5 v8 ( 4.4). The alternative is removing the timing chain covers. The cost of removing the covers is more than the car is worth. I want to at least try and extract the bolt before junking the car.