I looked thru the tech info and searched the posts trying to figure this out to no success.   My cowl vent was not working properly, would barely open.  So I dug into it.  Found that almost all the bolts were loose so I tightened things up.  All that did was make it virtually not work at all.   I think the problem is that brackets the vent itself bolts to, circled in red in pic, are not pivoting.  The service manual was not helpful nor was the parts book.  I think those brack