I got away from the OEM filters years ago, but I don't think there's a "direction" for them inside the filter cover. it IS pretty imperative to make sure the spring (5 on the diagram) and the spring washer (4) are still in there. usually the washer was lost somewhere/somehow through the years.
I use a spin-on adapter amazingly machined by one of our members. saves a lot of time and hassle when you're crawling around on your knees and maybe your back.
sorta bulldogged custom 1978 GL1000 - "geekster" - daily rider
full Vetter dress 1979 GL1000 - "Barge" - daily rider (currently down)
1986 1200 Aspencade - "Heart of Gold"
1990 1500 Aspencade - Tupperware basket case so far
1978 for $100 - project in worx
1978 from a previous member here - taking up space
my original '79 bought in '91 - replacing engine (eventually, maybe someday)
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. ~ Robert A. Heinlein
The good thing about science is that it's true whether or not you believe in it. ~ Neil deGrasse Tyson