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Is repairing turbos a good idea? If so what to buy
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09-27-2019, 10:52 PM | #1 |
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Is repairing turbos a good idea? If so what to buy
So it seems my turbo seals are blown. I have oil smell and occasional smoking. Already replcaed valve cover gasket, PCV insisde valve cover and the PCV external flapper. Valve cover PCV cyclone ports also look perfectly clean.
I also notice a oil leak coming from hot side intercooler piping, I need to pull my intercooler tomorrow to confirm 100% how much oil there is in there but seems to me oil is being pushed from the seals right into the intake... That said, if turbo repair is a good option I would rather do that than buy OE replacements. I see you can buy new CHRA for like 500$ and at the same time I could also do a waste-gate reinforcement on it. Or is rebuild/repair not a good idea? I don't want to push this car with more HP and I am satisfied with MHD Stage2+. By the way car is 2011 335is with 70k miles. |
09-27-2019, 11:22 PM | #2 | |
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You are way ahead of the game if you bought RB stage 1 turbos with cash/ money order for about $1600.00 out the door. Of course you'd need a turbo accessory kit with all the seals, nuts etc. I almost pulled the trigger this summer, but found my 30ff code. So, I'll stay the course until my turbos kick the bucket. |
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09-28-2019, 05:03 AM | #3 |
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Turbo's don't have seals in them, they have a piston ring type affair on the turbine end, and a collar and thrust bearing, on the compressor side.. if its smoking, it's more than likely coked up!!
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09-28-2019, 12:35 PM | #4 | ||
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Point is, if I buy new CHRA it's basically a brand new turbo right? All I am keeping from the old is the housing and the wastegate. There seems to be a popular website here TurboPartsCanada but no one dealt with them on here so I'm a bit afraid. |
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09-28-2019, 12:39 PM | #5 |
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I've rebuilt several turbos off of diesel motors without any issues....why would the N54 turbos be any different? Anyone with some hand tools, and some basic mechanical knowledge should be able to do it...right?
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09-28-2019, 12:48 PM | #6 | |
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And that's all is needed? I might just try to find a turbo re builder somewhere instead, Turbo Parts Canada really seems promising. |
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09-28-2019, 09:47 PM | #7 |
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Ok I pulled down my intercooler. The oil inside of both sides seems to be normal levels, the typical N54 pcv oil.
So it's just smoking on the exhaust side of the turbo so I guess I'll just let it be for now. Last edited by TheMidnightNarwhal; 09-30-2019 at 05:23 PM.. |
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09-28-2019, 10:10 PM | #8 |
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09-28-2019, 10:21 PM | #9 |
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What is your rate of oil consumption?
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09-28-2019, 10:42 PM | #10 |
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09-28-2019, 10:45 PM | #11 |
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09-29-2019, 01:58 AM | #12 | |
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The rebuild is quite simple, about an hour the balancing and flow testing about the same.. |
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09-29-2019, 06:09 PM | #13 | |
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Even if you did change them out, they come pre-balanced anyways. |
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09-29-2019, 08:08 PM | #14 | |
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I wouldn't increase the length of time you blast. |
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09-29-2019, 08:21 PM | #15 |
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Alright then a catch can is completely useless then. My intake oil is minimal.
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09-30-2019, 06:28 AM | #17 |
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09-30-2019, 09:16 AM | #18 | |
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You heard wrong. Low-side is what will catch oil for most. High-side is unlikely to catch all that much on a street car. |
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09-30-2019, 09:19 AM | #19 |
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Turbo Lab America will rebuild your turbos and upgrade your wastegates for $650
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2009 335i xDrive AT / 177k+ miles
PSP 750ic / Fuel-It! Stage 1 / BMS CP / Sutphin Tuning / RFP E50 11.61 @ 117.5 New setup; Covid 19Ts on RFP 93 + ARM inlets, dp, VTT cp and PSP outlets |
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09-30-2019, 09:27 AM | #20 | |
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And I could buy waste gate repair kits and do that as well since I have a cheapo welder at home. Seems simple enough to do the fix. But now I don't know... a big turbo S2000 wants to race me so doing around 650whp would be nice on this car... but it's a 335is I don't want to make it into a 5000$ N54 by putting a bunch of mods and "breaking" it. Plus if I want to do 650whp that means in additions to new turbos, I need new inlets, new clutch and pretty sure I'm gonna need a custom tune right? |
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09-30-2019, 09:29 AM | #21 | |
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And the wastegate arm upgrade is just drill out the old bushing and grind and weld the new arm to bushing. |
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09-30-2019, 09:35 AM | #22 |
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Then use Turbo Parts Canada. Same type of service, unsure of cost.
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