My bad....The vehicle specific kits have no adjustment bolt (like my gc8/gf8 kit), but the universal fit ones do however.
Here's how to adjust it:
1.First you should know that the usual tight/loose rules do not apply here.
The adjustment only affects the large outside black valve, not the small inside purple valve.
2.No matter how loose you adjust the
bov, it will not leak.
However, if you adjust it too loose, the parts inside will come apart and possibly jam the
bov (maybe this is why the op's valve doesn't work??).
3.For most applications you want the loosest setting, which allows the bigger valve to open faster loosing all of the compressed air
4.If you adjust the
bov more tight, the air will only come out of the small valve first, then the larger valve, depending on the tension. This will create a louder high pitched sound for the small valve, and a smaller deep pitched sound for the large valve. Some people like the
bov tightened all the way for maximum "shreek" upon release.
5.You need a 10mm spanner to adjust it. Loosen the nut closest to the
bov slightly. Now you can adjust the top bolt to your liking. Go for a drive.
6.Once the bolt is where you like it, turn the nut to the right to "lock" that position. Do not over tighten the bottom nut. Again, be careful not to over-loosen the top bolt. If you loosen it too much, it will come right out.
There's all so a little ssqv hack (say you need to run your car over the pits):
If you disconnect the vacuum line to the
bov it will stay shut, regardless of boost or vacuum applied to it. Handy if like flutter or have a licky.