Hi all,
Recently picked up a b4 liberty as I want something a little nicer for my spine (old car was a first gen mx5 with stiff suspension). It's fairly clean and straight, only issue being it needed a wheel bearing as it was getting noisy. Was originally after a decent gc8 wrx but they don't exist anymore... I looked at my fair share and at the time they were all rubbish. Fell in love with the b4 as it's still semi-sporty but a lot nicer to drive day to day when compared to mx5 life.
I impulsively bought one of the GFB bovs for the b4, fitted it up and all was fine. I was happily enjoying flutterville until driving home one day the bov didn't open and the car felt sluggish. Limped it home to find the vacuum hose that goes down to the primary had split open. A trip to autobarn later I had bought some hose and everything was back to normal. Sort of. The BOV opened but it seemed to shut really quickly, instead of the usual PSSHHT it was more like PST. During a long drive it seemed to work for 30 minutes or so and then just refused to open again. I swapped back in the stock bov and it seems to work normally.
I'm happy enough on the stock BOV now as it's all working as intended (i think) but it'd be nice to know what exactly the problem is with the GFB. Does the hose I replaced need a restrictor pill or something? There was nothing in it when I removed it but it had split open and it could have fallen out as a result. Photo below of how the GFB is fitted up, the red lines are around the hose I replaced. I'm new to turbo's and this twin turbo system is not the easiest thing to wrap my head around (so many vac lines!). I've had a look at a few threads like the one a few posts down but unsure if they apply to my scenario.
Photo below:
http://i.imgur.com/gbXeTH0.jpg
Cheers,
-Jester