On Fri, 29 Feb 2008 01:58:26 GMT, with neither quill nor qualm, "Ivan
Vegvary" quickly quoth:

First time ever I had my oil changed by others, they bungled the drain plug.
2000 Chevy Silverado. It was out of town and too far away to consider
redress.

The plug is either 14mm or 9/16 inch hex head. The head seems to have a
slight taper to it. The rest of the plug is an approximate 1.5 inch
shoulder probably with a gasket. I already tried moving it by chiseling
near the edge.

I suppose my best approach at this time would be to weld on a large nut that
will fit over the hex head. I'll be using wire feed welder. Other than
disconnecting the car battery, is there any other advise before I weld?

Yeah, make sure there is no oil anywhere around the outside of the pan
or plug where you're welding. Thin layers ignite pretty quickly. Keep
a fire extingisher handy, too. If you have it, you won't need it.


This will be my first ever overhead weld.

What? You don't have 11" vise grips, pipe wrenches, etc?
Condolences on the little problem.

Suggestion: install a magnetic drain plug in its place once it's out.

--
An idealist believes the short run doesn't count. A cynic believes
the long run doesn't matter. A realist believes that what is done
or left undone in the short run determines the long run.
-- Sydney J. Harris