My BCS has failed again. I'm really not happy about it. Will be talking to Tillix tomorrow, I've emailed them already but they are probably having too much fun on weekends to look at emails!
I'm going to order the full kit. Not sure if the base valve will be enough for me.
What happened? My car brought us back from South Aus and the next day the turbo died. Fine, buy a new one, replace it. Everything seems ok? We got into Newcastle (over an hour from here) and notice the battery is sitting at 12.4V (instead of the usual 14.1). Oops. Yes, the alternator light is coming on very, very faintly. Trump alternators to the rescue.
Had the alternator replaced (I couldn't undo the bottom bolt) and today the turbocharger is way, way underperforming. Almost as if the turbo was getting a little movement from the exhaust gas, but those vanes weren't opening ... so I replaced the 3mm hose (bought 3m of it, have about 300mm left over). All joints tight, no movement on the actuator arm. Grab the hose to the top of the actuator, give it a light suck and the actuator arm rises. Ok, the BCS is stuffed. We were still 50km from home when I replaced those hoses and tested it. Even had the DPF light come on - first time - kicked it down a gear, held the revs steady and kept the engine mostly at super-light load - DPF light went out after about 15 mins (too much soot from not enough air).
So I thought about it and decided to attach the vac pump directly to the actuator. Plenty of boost available - too much, actually. It does ease off if you lift the throttle, but if you pour on the gas the boost level goes nuts.
A gentle drive and it came home with no incident. Time to get that Tillix valve!