Core plug

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Core are found on engines and are used to plug the holes where sand cores have been held. The sand cores are used in the casting process to form internal cavities in the engine block or cylinder head, for cooling water for example.

Core plugs can often be a source of troublesome leaks as a result of internal cooling system corrosion. Ease of replacement depends on accessibility. In many cases the plug area will be difficult to reach and using a mallet to perform maintenance or replacement will be nearly impossible without special facilities. Expanding rubber plugs are available as replacements when access is a problem.

They are often wrongly called Freeze plugs.

types of cores

half core box;

dump core box;

split core box;

left and right core box;

gang core box;

strickle core box;

loose piece core box.

Oskdevil (talk) 16:28, 6 April 2008 (UTC)osk devilOskdevil (talk) 16:28, 6 April 2008 (UTC)