you know about this two versions of fork seals for the Nordie?
One is about 7 or 8mm high and is mounted together with a steel washer.
The other is a 10 or 10,5mm high seal.
Mounting the low version without the washer may end up in troubble.
I did not know if it does, but it could be that the lower seal moves somehow angular and will leak then.
No matter if it's a upside down or a normal fork, the spring of the sealing should always be on the 'oily' side.
Ok if i understand it right, it's now on yours to
ciao Joachim