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Old 08-24-2005, 09:34 PM   #1
chris124816
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Default new turbo installed. smoke screen, low o2 voltage, no boost

well this sucks, i finnaly installed my turbo but i have problems, i installed the vacume lines correctly
impreza outback sport
2.2 litre
garrett t 25 with internal waste gate
water lines from heater
oil lines from oil cooler comming from the oil filter with a sandwich adapter

the only opening betweet the turbo and intake manifold is the bov so its not leaking there

engine starts and idles correctly

my air fuel meter stays at the lean point when it usually (pre turbo) moves around and stays at rich when accelerating

max boost is only about .5 psi boost even at 5000 rpm

when i push the gas i have the worst smoke screen i have ever seen out of the tail pipe

i was thinking the smoke is making the o2 sensor act weird, but dont know why its smoking it ran perfect before i put the turbo on all exhaust pipes were welded
please help
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Old 08-24-2005, 09:43 PM   #2
White 2.5rs
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what EM r u running?

just because the pipes were welded doesnt mean the flanges arent leaking but what it sounds like is youre running horrbly rich and maybe fouled your o2 sensor

i was shocked at how much crap accumulated on my sensor just from like 100 miles of rich running
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Old 08-24-2005, 09:50 PM   #3
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a lot of times, you will have too much oil going to the turbo-a lot of aftermarket upgrades/DIY kits have this problem. I know the APS kit has a reducer so that their turbo doesn't get too much oil. What is the diamater of your oil return line? and I guess I should have asked, oil smoke or fuel smoke?
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Old 08-24-2005, 10:07 PM   #4
chris124816
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hiteish smoke so, the lines going to the turbo are small likethe size of a pencil, i will take out the sensor and plugs and check them, if im running rich that might be from the air leaking from like the pcv valce or something are you suppose to take that out
i was wondering why wouldnt the pressure just leave through the pcv valve
im in the learning process but i also need the car to get to work
im not using engine management i modeled it afted ludespeed stage one kit lookin for 3-4 psi with no em necessary
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Old 08-24-2005, 10:17 PM   #5
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well, take off your intercooler/intake pipes and see if there is any oil in there...
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Old 08-25-2005, 01:47 AM   #6
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If you used a sandwich adapter then you would have had to drill it and then "T" the lines before running the line into the turbo...also the return line, if plugged into the return on the sandwich, believe it or not, will also be pressurized with oil. Trust me i had the same problem the oil is probably rushing the turbo backwards causing the seals to leak on both the compressor and turbine sides. This is a huge problem and you will most likely starve the engine of oil. Thats what happened to me. I just blew a connecting rod bearing. You must tap the oil pan for the return...anywhere else is pressurized. Keep in mind, the sandwhich is only designed for an oil cooler, and there for all of the oil is supposed to pass through it without any restrictions or else it will back flow from the motor. Hopefully you will catch it before it runs dry! I certainly didnt! My car burnt up 4 qts in less than a few minutes of slow driving in my driveway. And yes the oil will rape your O2 reading untill it clears up. Feel free to PM me about the project im in the middle of the same thing man!
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Old 08-25-2005, 08:48 AM   #7
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yea i am leakin oil out the outlet of the turbo damn it i guess i have to change my oil lines then oh well
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Old 08-25-2005, 11:43 AM   #8
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Outback Sport

so im gona t into my oiler cooler lines instead and drain with a larger diamater into left valve cover, like forced air tech-com. website checked the intake tubing and no oil in there thank god.
also if i have leakes in the exhaust pre turbo would that make me not have boost?
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Old 08-25-2005, 02:06 PM   #9
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well now im draining into my side valve cover like forcedair tech, but im still smokin tryin to figure out if it is just left over oil from before, and now i have boost, but no boost power
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Old 08-25-2005, 02:15 PM   #10
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i am still getting oil smoke i can tell its oil cause its leakin out a small hole in the down pipe, what now
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Old 08-25-2005, 03:47 PM   #11
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well, let me ask you this, did you buy a new or a used turbo? I hate to say it, but a majority of used turbos out there usually are pretty thrashed.........

How big is your oil return line? Might have a too small oil return or your oil return might be kinked. OR you might have a bad PCV valve....
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Old 08-25-2005, 04:01 PM   #12
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it was a brand new turbo still had tags on you could tell it was never used. my oil return line is 1/2 inch real big, just talked to pag parts com they said the drain line can not be above the turbo wich it is so now im gona tap into the oil pan and see what that does if that doesnt help they said i maight have blown the seal when i innitally hooked it up to the sandwich adapter
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Old 08-25-2005, 04:09 PM   #13
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oh for sure-the only thing that drains the oil out of the turbo is gravity! Has to drain down to the oil pan.....
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Old 08-25-2005, 05:44 PM   #14
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Yeah, it must go to the oil pan and it must be above the level of the oil in the pan. Take the oil pan off and drill a hole in the side just above the baffle and install a -10 bulkhead fitting there and have it welded to the pan. Then run a -10 line from your turbo to the pan. Also- run no larger than a -4 feed line to the turbo and make sure you have a restrictor in that line. The turbo should really only see a max of about 20psi of oil pressure- not the 90 psi that the block puts out to it.
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Old 08-25-2005, 07:22 PM   #15
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i also just learned that i ned a restrictor on the feed line, i did not have one , you guys think my turbo is shot now. i only drove it a couple miles, i taped the oil pan like u guys said and jb welded it just for extra, waiting for that to dry then ill see if it blows oil in the morning with a restrictor, who new going fast would be so much work
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Old 08-25-2005, 08:15 PM   #16
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might be OK, depends if the bearings got "coked" with oil. If you didn't really run the car that much, you should be fine. Just take your intercooler/intake piping off and clean it out, as well as your intercooler.
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Old 08-25-2005, 08:51 PM   #17
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i took apart the intake and intercooler and there is no oil at all on that side. not a drop only on the exhaust side so hopefully its still good
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Old 08-25-2005, 11:30 PM   #18
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Do a search for restrictor in this section. Graham made one that worked good using a nitrous jet that he drilled out.
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Old 08-26-2005, 01:37 AM   #19
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i have one of those nitrous jets man
i can drill it to your specs and ship it to you

alex
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Old 08-26-2005, 01:19 PM   #20
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got a restrictor, moved the drain line, still smokes, mission aborted i,m headin to the dealer to get a wrx,
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Old 08-26-2005, 01:19 PM   #21
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any one want to buy a turbo kit?
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Old 08-26-2005, 09:22 PM   #22
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Default Check breathers

Sound like you have to much pressure in the cylinder heads casuing the oil not to drain back to the oil pan and therefore casuing the oil to go straight out the exhaust because the oil pressure is pushing the metal seal in the center cartrige of the turbo over causing oil to spew out of the exhaust side therefore creating ridiculous amounts of white smoke out the exhaust
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Old 08-26-2005, 10:50 PM   #23
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THese are the simple problems of the turbo kit. If you are really that discouraged I would say that you are probably right in getting a wrx instead. Aftermarket forced induction is best left to us crazy few. Good luck finding a nice used wrx.
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Old 08-27-2005, 11:34 AM   #24
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The problem is the volume of oil, really-the turbo is designed to accept a cerain amount of oil, run it over the bearings, and let it drain out the bottom. Exceed that level, and the oil goes everywhere, including out past the piston ring on the compressor and turbine side. Oil in the intake, oil in the exhaust, oil everywhere...

(or you didn't prime your turbo when you installed it, and it's just broken....)
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Old 01-20-2006, 06:44 AM   #25
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I know this thread is slightly old, but I am having issues that may be similar to this. I am wondering, if you are not in boost (ie vacuum), that high revs can still push oil into the intake through the turbo seals?
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