Trying to remove dipstick Tube from '87 3.8 motor
 

Hi,

Need to replace the starter in my '87 olds 88 w/3.8 liter motor. Saw I would have to remove the headers from the front of the engine. Got to the point where I would have to remove the dipstick tube, and got stuck. It is very loose, but won't come out. Is it screwed in? Hope someone see's this right away to help, and thanks in advance.

Terry