[sti2relaxxin]

Originally Posted by snorky

MY07 (with it's new heads and supply line) does not have the filter. I have verified this on another member's car.

How positive are you that this information is correct?

[niemkij]

I want to share a point of view regarding the banjo bolt with filter located at the rear of the engine block on the turbo feed line. I think it is a bad idea to remove the screen here. The mesh holes in the screen are small but the area of flow is much larger. If you take the bolt off at the top of the turbo, you will see a very small oil feed hole in that bolt that provides a restricted oil flow to the turbo. If you take out the screen in the lower banjo bolt a small particle can then clog the small feed hole in the top bolt. However, the screen left in the lower bolt can trap many small particles without clogging before they get to the turbo feed hole in the top bolt.

I remover the lower banjo bolt after about 30K miles and found hardly any clogging. i cleaned it with brake cleaner, blow it off with compressed air and put it back in.

[Bill_S]

Originally Posted by needmore

I pulled the filter out my 06', it seems people are confused between the turbo oil feed banjo screen and the one at the AVCS feed . Two different locations/filters. The area of concern is the turbo feed, blocked or dirty filter starves oil supply to turbo. Once you take it out you will be shocked how small the holes are in the screen.

I agree it is very confusing - my gut feeling is that it is still there in current production turbo engines. Those not finding it are likely checking the AVCS feed. Here you said that you pulled it out of your 06 while others say it wasn't in their 05. If Subaru was going to stop installing because of turbo failure they would have a service bulletin to remove analogous to the AVCS feed filter. I am going to try and find out and will let you all know.

[Bill_S]

Originally Posted by niemkij

I want to share a point of view regarding the banjo bolt with filter located at the rear of the engine block on the turbo feed line. I think it is a bad idea to remove the screen here. The mesh holes in the screen are small but the area of flow is much larger. If you take the bolt off at the top of the turbo, you will see a very small oil feed hole in that bolt that provides a restricted oil flow to the turbo. If you take out the screen in the lower banjo bolt a small particle can then clog the small feed hole in the top bolt. However, the screen left in the lower bolt can trap many small particles without clogging before they get to the turbo feed hole in the top bolt.

I remover the lower banjo bolt after about 30K miles and found hardly any clogging. i cleaned it with brake cleaner, blow it off with compressed air and put it back in.

Excellent information - Subaru doesn't do things unnecessarily. Take care of the vehicle with good oil - synthetic - and frequent oil changes and it is unlikely it will get plugged. Does anyone know of Subaru checks the filter as part of routine maintainece, or if routine maintaince is even part of the service schedule. I have checked the service guidleine and I didn't see a recommended interval for maintainence. I think checking and cleaning every year is the ideal compromise. I am uncomforable removing it.

[needmore]

If you have theTMIC you must remove to get at the banjo bolt , FMIC not too bad of a job. I ended up using a mirror because you can't see what you are doing otherwise. If you bought the car new and are "anal" about oil changes you probably are o.k.,otherwise I would get it out of there.I have the Green turbo on my car which needs more oil than the vf39 so there was no question it had to go. Also be carefull not to twist and damage metal banjo fitting when loosening and tightening it would be easy to do.

[Bill_S]

Originally Posted by needmore

If you have theTMIC you must remove to get at the banjo bolt , FMIC not too bad of a job. I ended up using a mirror because you can't see what you are doing otherwise. If you bought the car new and are "anal" about oil changes you probably are o.k.,otherwise I would get it out of there.I have the Green turbo on my car which needs more oil than the vf39 so there was no question it had to go. Also be carefull not to twist and damage metal banjo fitting when loosening and tightening it would be easy to do.

"Anal" - thanks for the compliment!!!!! Is my stock turbo a vf39 - don't really know, however it has lots of punch. ?I really don't want to void my warranty yet. I jave a spec B Legacy - same as WRX I think.

What is TMIC & FMIC ?

[Devil2holla]

wow im just now seeing this thread and i got my old turbo replaced by the dealer due to oil starvation and now my new turbo is making like a scraping noise whenever i step on the gas or in boost. idk if i should go back to the dealer bcuz now im stage 2 and dont feel like going back to stock. I will clean the filter now and replaced it tomorrow when dealer is open. if it continue to make the scraping noise im going to take to the dealer. Does anybody have the link to the service bulletin on the filter so i can show the dealer.

[GoLawrence]

Originally Posted by Bill_S

"Anal" - thanks for the compliment!!!!! Is my stock turbo a vf39 - don't really know, however it has lots of punch. ?I really don't want to void my warranty yet. I jave a spec B Legacy - same as WRX I think.

What is TMIC & FMIC ?

Top Mounted Intercooler, Front Mounted Intercooler

[Bill_S]

Originally Posted by Devil2holla

wow im just now seeing this thread and i got my old turbo replaced by the dealer due to oil starvation and now my new turbo is making like a scraping noise whenever i step on the gas or in boost. idk if i should go back to the dealer bcuz now im stage 2 and dont feel like going back to stock. I will clean the filter now and replaced it tomorrow when dealer is open. if it continue to make the scraping noise im going to take to the dealer. Does anybody have the link to the service bulletin on the filter so i can show the dealer.

There are two filters. Work your way back through this link. Also here is some good information. Blocking of the filter at the turbo can destroy the turbo. Blocking of the filter at the AVCS feet will cause poor performance, however will not cause damage and once cleaned will restore the car to normal operations. The AVCS banjo bolt filter is no longer inserted - the bulletin was to remove this particular filter. However, I am pretty sure the turbo feed banjo bolt filter is still installed.

This link has some good information:
Forced Performance Turbochargers

This one has some excellent photos to show different locations:
Turbo oil-feed / AVCS line replacement

[Bill_S]

Just a followup. The service manager said that my 09 has the turbo filter.

I had a thought. Since the oil flows up and enters the top of the turbo, would there not be some backflow of oil through the turbo filter ias soon as the engine is shut down and oil pressure drops. Would this not back flush any debris off the filter. So if you are really good about using synthetic oil with frequent oil changes the filter should remain clean.

Just a thought.