I have noticed a very small leak of gas from the regulator on my westy gas tank. It's from the small orange button shaped part. It does seem to have a very small vent hole in it.
Not sure if this is fixable but I thought I would ask before forking out €65 plus shipping from Gunzl.
pretty sure that is a kind over pressure leak off, you'll probably find it has vented at some stage and hasn't reseated right. Not a lot you can do really other than replace.
Could well be, but don't forget the part is old and diaphragms fail. It could well be letting through twice the mbar its meant to. No harm giving it a tap, may well work but there is no saying if it will do it again.
If it was mine, id replace it.