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      Non-model specific frequently asked questions relating to Subarus. (Read Only)
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  • Posts

    • Hi folks from Canada's East Coast! I have a 99 B4 EJ208 TT that I've been tinkering on for past 9 years and I'm having an issue with my secondary turbo leaking oil out both ends into compressor snail and downpipe/ECV.    2nd turbo is a VF26 CHRA with VF27 exhaust and compressor housings, so it's journal bearing type. The banjo bolt is identical to the one in the primary VF26 turbo, so oil flow should be the same. No restrictors that I've seen, but I've heard they're usually in line for the VF27 BB turbos. The stock VF27 was leaking oil too before swapping it out for the VF26 CHRA. Both turbos have fresh rebuild kits with primary being completely dry, yet 2nd leaks like mad. I'm almost positive the ECV is collecting oil because I get a bit plume of blue gray smoke when I spool 2nd turbo and the up pipe is oil soaked (maybe coming out through the ECV flap linkage.     My current thought is over pressure inside the turbo CHRA which is pushing oil out through the seals (small piston ring type). Cause is either too much oil flow or poor drainage. I have a dual oil catch can setup that I've confirmed has good flow out of the crankcase and head breathers. And I'm positive I haven't overfilled the oil pan so it shouldn't be an issue of oil not draining due to crankcase gases flowing up the drain line. For oil supply, there is no restrictor, which I think is proper for a journal bearing turbo. Mind you the stock VF27 didn't have a restrictor either.    Kinda stumped on why its leaking. Anyone have any advice?    Related Mod List:  Killer B oil pickup and windage tray Ebay Silicon TT inlet DIY dual oil catch can setup (PCV valve clean and floating proper)
    • Having seen a few shatter off the centre I get super paranoid about my plastic ones, not quite paranoid to spend the big bucks on RCM metal versions just yet but one day
    • Hi everyone, wondering if anyone has put metal cam gears on a bh5 legacy. My tool always seems to chip them a little taking them off, and I didn't have a spare for this one https://imgur.com/a/lS69GA4       Doubt it could actually cause much damage running them like this, however it always sits in the back of my mind ? I think that 2nd and 1st gen have metal ones? any luck running them? cheers  
    • Bit of a tight squeeze, but shes in ?. Put a group N pitch stop in at the same time.
    • Pretty good discussion on it here:    
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