[timebuilder]

When you reassemble the tube, use anti-seize compound on the threads (I use the gray pasty stuff from Permatex, but any brand, including C5A copper-colored compund will do).

 

[timebuilder]

To get it apart, you might want to use some penetrant, like PB Blaster.

 

[timebuilder]

PLEASE...use CRC lectra-motive spray on the electrical connectors. You don't want to make problems.

When you say the cleaning didn't do jack, what outcome were you specifically looking for?