Blow off valve or air bypass valve..........

[timbo]

kind of a newb to all things turbo.....hopefully posting in the right spot.....

I have an EJ22T out of a 1991 AWD Legacy sedan. When pulling the engine out ,I broke the nipple off of the 'air bypass valve" which is under the intake pipe to the throttle body. The nipple was plumbed to the manifold for vacuum -and the 2 larger ports - 1 from the intake pipe the other -to the intake resonator.

Question - Is this valve the B.O.V.???

I found a blow up of the intake system and Subaru calls this valve an "air bypass valve". My dilemma is the $120 for a new one. I've tried fixing but it just isn't staying together.

Question - do I need to find a Subaru specific valve or is there an aftermarket one available.

Excuse my newbness.....thanks for any input.....

timbo

[bmxkelowna]

any bpv (by pass valve) will work.
i was using a vw/audi one when i 1st put my saab top mount intercooler in. you should be able to find one at a junk yard from a 1.8L turbo vw/audi

[dscoobydoo]

Read up on the atmospheric vent vs recirculation.

That should answer a lot of your questions.

There are aftermarket replacements, and probably a few people on the forum who have spares. I might have a spare.

PM blackbart, as he is always good for spare parts.

[BXSS]

I have used a brass barbed fitting to repair one of these for a friend in the past.

I just made the hole big enough that the fitting would thread in tightly & then i put some JB weld around the joint just in case - that bpv is still alive & well.

[the_watts10]

u can also use a blow off valve instead but just make sure not to get a sock sti onesuld be a sequential blow off valve

[ciper]

IMO If you insist on the sound try to get a hybrid unit which only blows off a portion of the air, returning most of it to the intake.

[timbo]

thanks for the info. people.............I'm going to try a few local wreckers to see what I can dig up.............I did find a complete 91 AWD sedan with a seized ej22t on craigslist though. Seller's not interested in parting it out. $ 900 for a complete car...........hmmmmmm