how is it done without damaging the filler?

there is a special tool that fits inside the oil filler and undoes the "bolt"

Otherwise you need a screw driver and "tap" it undone. really hard to get the angle though.

any body else trying this take note of the word "TAP" and dont punch a hole through it like i just did:duh

[Edited on 9-1-2005 by akean1]