[Why does my subaru keep blowing turbos!?!]

 Andy_Mac said:

What exactly is the diagnosis that makes you consider them dead? Major shaft play?

Well you'd see if there's anything in there thats causing problems. Surely it would have killed the engine too if there was much there.

Yeah, major shaft play.

I'll drain the oil and check the oil pan at some point.

[Why does my subaru keep blowing turbos!?!]

 Andy_Mac said:

Thats weird that you managed to kill a vf44.

So you're doing a full flush after each turbo change? Have you removed the oil pan to actually confirm all potential metal fillings are cleared out?

You're telling me. Yes, and No I haven't done that, would doing that now give any sign of that being the cause?

[Why does my subaru keep blowing turbos!?!]

 evowrx said:

Have you changed the oil since the first failure?

The company I bought it from had inspected it prior to sale (Probably to cover their liabilities). Also I ran engine oil flush through with new oil then replaced with new oil again before driving.

[Why does my subaru keep blowing turbos!?!]

 Jono24']What sort of car is it?

What turbos have you used?

Is your oil banjo inline filter still installed, and if so have you ever replaced it?

Do you use the right size banjo bolt for each turbo? (The oil hole is different size for bb/journal bearing vf turbos, not sure about TD turbos.)

Has the engine been rebuilt for any reason, and are there any second hand replacement parts on the engine that you know about?

The car is a 2003 Legacy GT 2.0 Wagon AT

The first two were (Including one that came with car) were VF38's. I then did some research and learn't the 38's were terrible and opted for a VF44 from an 07 legacy instead.

Yes it is, and no I haven't replaced it. However on replacing the turbos I cleaned it using brake cleaner.

I'm pretty sure I did? I used the banjo bolts that came with the turbo. Never knew they were a different size.

Not to my knowledge, the only aftermarket part on the car is the air inlet pipe to the turbo which I have had no issues with.

[quote name='ballsrburning said:

Is it in stock Location? Do you run anti lag? What's the setup?

Yes, everything on the car is stock that I know of, other than the air inlet pipe to the turbo.

[Why does my subaru keep blowing turbos!?!]

Allright so. This is the 3rd turbo (including one that was on the car when i bought it) that has blown since ive owned it (5months). Im at a loss as to why the hell this keeps happening. There is oil flowing, coolant flowing, no smoke out the exhaust, no smoke from engine, no check engines/oil lights. New turbo gaskets. Car boosted fine when running, went to work then noticed it was stuffed again when leaving.

What the hell would cause this? I would appreciate any input.

[Turbo steaming/smoking under load]

I don't think so. I think the initial leak was just exhaust gases escaping.

[Turbo steaming/smoking under load]

Hey guys,

So I finally got my 03 legacy back together and started it. The first time I started it there was a bit of a leak on exhaust side of turbo so I tigthened the nuts and started it again and that issue was gone. I then let it idle for 10 minutes and decided to take it for a small drive to see how it went. I went 500m down the road using minimal throttle and noticed it steaming/smoking again. I managed to get it parked up and let it idle and the steam/smoke was no longer present. I had a look around for leaks etc and the only sign i could find was here:

that is a picture from around the oil return line. I'm not 100% sure but it kind of looks like it is leaking through the gasket possibly??

[Any suggestions?]

Hey forum,

So I am putting in my new turbo and I have discovered a problem... The oil return line hose doesn't seem to fit all the way up the turbo oil return pipe (As shown in picture below).

Do you guys have any suggestions on how I could fix this? One thing I thought of is possibly sliding the lower part of the hose up slightly to share its current length with the upper connection.

[A little help]

For now just leaving engine cover off. Will sort that issue out later ☺

[A little help]

Alright so I had a closer look. Turns out the small pipe was the old hose which went from the pcv joiner on the block to the inlet pipe and the other hose went to the small coolant reservoir return line. All sorted

[A little help]

The thing I'm don't understand is I seem to have an extra hose.. But if the big hose outlet on the inlet pipe is correct then I'm not sure where the small hose goes, or where the other hose connects....

[A little help]

I'm thinking I may have connected the big inlet pipe port to the wrong place?? Maybe. As for coolant line crossover I'm not quite sure. the coolant feed line is still attached to the turbo.

this might make things more clear.

[video=youtube;LsRlVOoN26I]

[A little help]

Here is another picture of one of the hoses

I also removed the hose

[A little help]

I haven't cut anything shorter atm.. YEah this is a view from the back of the engine bay looking at the turbo side of the inlet. I remember having to disconnect the tubes to get the OEM inlet out..

[A little help]

Hey,

I am installing an aftermarket inlet pipe on my 03 EJ20 BP5 Wagon and I am hooking up the vaccum lines and I can't remember where a few of them go... (took it apart 1 month ago and didn't take pictures or anything).

The hoses circled are the hoses in which I don't know where to connect them. Can anyone give me some info?

Cheers.

[2003 Subaru Legacy Aftermarket inlet pipe]

Yup we sorted it the correct model He is sending tomorrow morning.

[2003 Subaru Legacy Aftermarket inlet pipe]

I just purchased one of these and the post MAF pipe also. Waiting on reply from him as I have sent the money..

[2003 Subaru Legacy Aftermarket inlet pipe]

Hey,

So im replacing my torn subaru turbo inlet pipe and want to get an after market part. However i seem to be unable to find one for my car.. Has anyone ever replaced one on an 03 BP5? Or know of one that suites my model.

Cheers

[Should my 2003 BP5 Legacy pump oil to turbo when only cranking?]

 kwi_fozze']Didn't replace with another vf38 did you?

Check the oil filters at each end of the oil feed lines

I did originally, that replacement Vf38 didn't last long... going for a VF44 now.

[quote name='Andy_Mac said:

So you get oil come out of the supply line if you try crank it with the turbo supply removed?

You'll atleast know its making its way to the turbo or not that way

No, i get no oil coming from turbo oil supply line when cranking the engine over (Crank position sensor unplugged) but I do get oil coming through when the car is fully started and idling,.

[Should my 2003 BP5 Legacy pump oil to turbo when only cranking?]

Hey, So im admist replacing another turbo on my 2003 BP5 legacy. I have been told to prime the turbo by connecting oil feed and cranking the car. I wanted to test if oils was pumping before I did this and when I tried it NO oil pumped. I have discovered that it does however pump oil when the car is started and idling.

Should there be oil pressure when cranking?

[Why do turbos keep blowing!?]

 Marky said:

And the drain is definitely clear as well?

Are you referring to the oil return? If so I'll be checking that once I've got the turbo off again.

[Why do turbos keep blowing!?]

Alright so I managed to run car while having oil feed disconnected. Oil actually came out this time! And there was a decent amount of it.

So.. could this really just be a case of ****ed turbos?

[Why do turbos keep blowing!?]

 lachlan said:

Lame

Join the afm straight to the throttle with what ever hose fits and start it up.

Is it possible to put the filter u cleaned in backwards and its blocked the flow ?

So how many km have u cooked 3? Turbos in ?

Do the numbers point towards something in thr car killing them or just unlucky and received pre worn out turbos

Thus far Ive cooked 2 turbos. The one with the car when I bought it after 4 days, and the replacement 2nd hand turbo 3 days after replacing first broken turbo. I feel like something is causing it..

[Why do turbos keep blowing!?]

 lachlan said:

Plain bearing turbos like about 3 l a minute . Bb turbos like about a litre a minute .

Have to be aware of where the restrictors are when swapping a turbo of different type . A bb will likely blow oil into the exhaust if fed 3 l a minute . In modern days the restrictor is built into the oil outlet .

Would ten seconds of cranking get the oil pressure light to go off ? Might not have pressure by then anyway if its jus been sitting . The turbo oil feed pretty much is the furtherest outlet from the oil pump

Maybe have the engine idling and crack the oil feed bolt loose and see if anything leaks out

Might be a bit hard to get at the oil feed bolt with the intercooler on as the intercooler and intercooler bracket are in the way when it is all hooked up and running.

[Why do turbos keep blowing!?]

 Rosssub said:

That's the fuel pump, not the oil pump. You'll need to disconnect the cam sensor or unplug the fuel pump relay. The turn the engine over (trying to start) to pump any oil.

Hey, I just disconnected the crankshaft sensor (below the altenator) and cranked the engine for about 10 seconds. Again, no oil was pumped.