Re: Damaged Bolt Extraction

On May 4, 10:43 pm, "Paul Hovnanian P.E." <p...@[EMAIL PROTECTED]
> wrote:
> I'm in the process of pulling the drive plate off a vehicle to replace
> the rear main seal. In the process of loosening the 10 bolts, I managed
> to bugger up the heads on two of them. The socket I was using slipped
> off and rounded off a couple of shoulders on the bold head.
>
> When this happened, I stopped screwing with them in order to minimize
> further damage. There are several methods for removing such bolts. Prior
> to drilling and seriously messing around, I seem to recall some special
> damaged bolt sockets (with helical teeth in them). What are these
> called? Are they any good (the bolts are 14 mm, torque to 75 ft-lbs).
> Who would carry them in the Seattle area? Any tips when using these? Or
> other advice?
>
> --
> Paul Hovnanian     mailto:P...@[EMAIL PROTECTED]
> ------------------------------------------------------------------
> Opinions stated herein are the sole property of the author. Standard
> disclaimers apply. Celebrity voice impersonated. Batteries not included.
> Limit one to a customer. Best if used by April 1, 2009. Refrigerate
> after opening. Void if removed.

With luck, you can take a 6 point socket and grind the opening down to
remove all the 'relief' at the opening, then that may grip the
unmarred part of the bolt head right next to the flex plate.

Or, you can find a local buddy with a mig welder and buy him a 6-pack,
just weld a nut right on.


Dave