Pete, One more sorry. When I take the condensate return pipe loose, shown here. I presume I loosen the connection on the left and leave the "nipple" coming out of the back of the sump in place? Also, is there some type of seal that will need to replace in between? I've ordered new gaskets for the headers (at both ends) and new bolts and washers for the header flanges and of course the two sump gaskets. I hate getting into something only to find out I need another part. Many thanks again.
I am sure Pete will be along to answer your questions in detail but In the mean time I just got around to doing this job on the Stelvio on Saturday. Yes you just undo the nut and leave the nipple, it is a compression fit, you don’t need any seal.
My gasket was in perfect condition at 62k km but nice for peace of mind to have it done, wouldn’t want it blowing on a long holiday trip (not much fear of that this year).
I will do the same job on the GRiSO when she is due her next oil change.