I am nearing the end of a build on a 300TDI, and i have a few bits left over from the gasket kit, one of them is the ERR2344 washer, i pulled the bolt from the adjuster and looked down the hole, it looks like it does not go all the way through the cover, the front cover is marked HRC2631 and the 300TDI repair manual makes no mention of the ERR2344 between the block and the cover, is the ERR2344 not required with the HRC2631 cover ? or does it go behind the stud hole or another location ? I don't want to strip the front end off again, unless i have to, hope someone can help.