chris wrx 95

iTrader: (1)

Please help if you can.

Today on 3 occasions when I started my car a small cloud of blue smoke came out of the exhaust.
It lasts a second then goes and wont do it while driving.
Im really worried it something not good.

bunsofsteeeel

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i expect its your turbo mate i just had to replace mine!

chris wrx 95

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Oh S**t really. What do you think is causing it to smoke.

Did it cost you much to replace

joz8968

iTrader: (13)

Once up to normal operating temp, take car for a bit of a blast... get home... let it idle for 5mins... rev the car up to c.4-5k... any blue or bluey-white smoke out the back?

If so, then suspect turbo oil seals or its thrust bearing on the way out...

chris wrx 95

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Gonna go try it now mate. Ill let you no what happens.
Not what i need when ive just lost my job.

chris wrx 95

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Right ive done that and there was not one little puff of smoke. Not even on full boost.

Ive just looked under the bonnet and my dump valve has sprayed oil all over the place. It looks like as its dumping the air its spraying oil out.
Its always had a small amount come out that I wipe of when I clean the car each week but never this much. Its all over the underside of the bonnet. Any ideas what this could be. Oh and I unscrewed the oil filler cap and blue smoke came out although it was a very small amount.

Rally Really Worried now

chris wrx 95

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I dont belive this. Just had another look under the bonnet and there is oil dripping out of the induction kit.
Really don’t now what to do. Starting to panic a bit now.

joz8968

iTrader: (13)

Hmmmn. Does seem like turbo failure TBH. Oil would be getting past the seals and into the compressor side, hence the oil out of the DV and in the air filter tract, etc.

chris wrx 95

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someone pleaaaaaaaaaaaase help me

joz8968

iTrader: (13)

lol posted at the same time.

chris wrx 95

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Thought everyone was ignoring me lol J just messing.

Is there any way I can be 100% that it’s the turbo before buying a new one
Just a thought, if the turbo is sucking air how does the oil get pushed out of the inlet.
You should see the state of my nice clean engine bay. Looks like a supper tanker crashed into my engine lol.

subaru-breakers-uk

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mine started to do this 3 weeks ago so i replaced turbo to no joy until other day when my piston went bang !!!!! i was getting back pressure pusing oil up into turbo and intercooler ect ect

subaru-breakers-uk

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get a compression test done it could save you a dead engine

chris wrx 95

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Owww that must of hurt sorry to hear that.
Sounds like a good idea. Where would be best to get this done.

joz8968

iTrader: (13)

Really does sound like turbo failure. Does it feel low on boost yet. If not, it soon will. If you've got a boost gauge see what it's boosting to.

Turbo's obviously have an oil supply to the shaft/thrust bearing surfaces. The shaft directly links the turbine wheel to the compressor wheel. I think there are seals on both the exhaust turbine side and intake comprssor side, to keep the oil in the oil galleries. It looks like the seal has gone on the compressor side, hence the oil in the engine bay and not much coming out the exhaust. If the exhaust side had gone, you'd expect a plume of bluey-white smoke out the back, as the oil burns away against the extremely hot turbo housing and downpipe surfaces, etc.

The little smoke that you are seeing is very probably the oil going into the air intake system and being burnt in the engine, then out the exhaust, etc

chris wrx 95

iTrader: (1)

Boost is still at 20psi but the car does feel slower today. Don’t know if its anything to do with the warmer weather today and my TMIC soaking all the heat up.
After reading what you said it makes sense that this is what the problem is.
Think a compression test is still a good idea but looks like I need to source a new turbo or can you get the seals.

Whats going to happen if I continue driving around. Obviously as gentle as I can.

joz8968

iTrader: (13)

I had about 3 turbos go on my old R5 GT turbo and, I think, one let go on my old Integrale Evo too. I think all of these failed on the exhaust side, as each time there was blue-smoke puffing out the back. When the turbo's went fully, then I got a 'rooster tail' load of blue-white smoke (burnt off oil) out the back.

You 'll soon know when it fails as you should experience similar symptoms and boost should drop right off to no positive boost.

I would first get a second opinion at a specialist, but it needs sorting as you are losing quite a lot of oil. Keep checking the level before every journey and make sure you carry around a 4 or 5 litre can of oil with you. Keep driving to a minimum anyway, until you get it seen to.

Prob best to get a second hand replacement turbo off eBay - then it will be ready to go on without the wait (and expense) of getting your's refurbed.

chris wrx 95

iTrader: (1)

You turbo murderer
I used to love the R5 turbo great little car and a plumbers nightmare under the bonnet.

I had a look on eBay and there was a brand new TD05 turbo from the states for about £280 sounds to good to be true.
Im off to Subaru, in the morning to see what they think. Hopefully it will just be the turbo that’s causing it.

Thanks for all your help. Im not cacking my pants as much as before now

Thanks again and ill post what Subaru say

kashe

iTrader: (1)

i agree with the subaru breaker dude i took mine to garage earlier and what yours is doing is the exact same as mine. its your piston/pistons, i took mine to a subaru specialist and to make it worse he said it would cost £1000 to replace pistons which seems pretty steep to me any one no how much it costs to get pistons replaced?

WMS

iTrader: (2)

What pistons are you running? 20 psi is dangerous on cast pistons, if your not running forged I would suspect that rather than the turbo, get the compression tested as already suggested. fingers crossed mate
Andy

WMS

iTrader: (2)

It's engine out and heads off to change a piston, I've never had one that has'nt damaged the bore though! a grand is not that far off the mark.

kashe

iTrader: (1)

normal cast pistons yeh erm car is running 1.2 bar boost.

WMS

iTrader: (2)

Once you start going over 1.0 bar with cast pistons their life is limited, I'm sure many will argue that,but I have been building these engine for 10 years and have seen every failure going. As already said, get comp test done asap!

subaru-breakers-uk

iTrader: (1)

please take the advice bud and get a compression test done costs pennies just for peace of mind regards

chris wrx 95

iTrader: (1)

So ive been at Subaru most of the morning and after looking at it there sure it’s the turbo seals.
They didn’t run a compression test has they said there was no need to waste £100 on one. They said as its un burnt clean oil that’s coming out from the Dump valve and air filter it has to be the seals. If it was from the engine it would be burnt oil.
The engine is running very smooth witch they also said is a good sign.

Ive been watching boost pressure from the Power fc commander not my boost gauge and one minute its 1.18 mmHg then 1.02mmHg had 1.13 and 1.02 as well. What’s this all about.

As for the 20psi ive been running I was told by the guys who mapped it that was a safe level for the standard TMIC and that with a FMIC and some new injectors id could go up to 1.5 bar on standard internals. Subaru said 20Psi would be fine. Not doubting anyone on here but isn’t it a bit odd that they both say 20 is fine.

As im replacing is there a better option than the TD05. Something with better spool up would be nice as mine has loads of lag.. Off the turbo there is just no performance at all then at 3500Rpm it all comes in.

chris wrx 95

iTrader: (1)

And now there is oil dripping out of the crank case breathers. Could it be that the turbo is blowing so much oil in the system its coming back through the breathers
Back to Subaru I guess so they can keep it and find out what the hell is going on.

chris wrx 95

iTrader: (1)

To top it all off i need new headers. Speed hump killed mine today

WMS

iTrader: (2)

Oil from breathers = positive pressure in bottom end = compression passing piston! I may be wrong but as Ive already said, get the compression tested, 100 pounds sounds a bit steep, get no 1 and 3 checked first, 3 is favorite as it's the hottest running cylinder.
Yes you can run 1.2-1.5 bar on std internals, but it's only a matter of time before cast pistons disolve, I work on these engines every day, believe me.
Andy

chris wrx 95

iTrader: (1)

I do believe you mate was just curious. That was main dealer price at £75 per hour.
Where could I take it other than Subaru to get compression tested.

What’s good for getting power without raising boost pressure. Id really like more off boost grunt if its possible as there is none at all on mine.

joz8968

iTrader: (13)

I don't know if there are any specialists in and around the Reading area, but there is Mocom Racing (highly respected) in North Weald:-

from: reading to: CM17 9LD - Google Maps


Re. turbo choice: the lowest spooling one would be Andy Forrest's TD04L Hybrid called AFP4H (the 1st turbo choice in the list):-

AndyForrestPerformance

It spools a whole 1000rpm earlier - at 2500rpm! - than the TD05H... Which is all very well, so long as your ultimate bhp goal is no more than the relatively low 320bhp it's capable of!