Core Plugs

[s4usea@fanniemae.com]

Lewis Palmer, in his discussion on vapor lock writes:

> 8)    Be sure all of the water passages in the block are clear. The one
> that many people miss is the passage behind the middle core plug. There is a
> cross drilled passage in there which is often blocked and missed during a
> rebuild.

O.K. so I picked up some new core plugs, but I can't figure out how to get
the old ones out of the block.  

Any help appreciated.

Thanks in advance,

Scott Allen