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BMW 3-Series (E90 E92) Forum
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Analyze my injectors and plugs
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09-19-2013, 03:28 PM | #23 |
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I’ll be doing VC Gasket in the next month; I will let you know if that fixes the smoking and oil consumption I’m dealing with. At first I thought it was turbo seals, but then I did plugs and saw the blackened threads + a good coating of oil on the threads. Electrodes were fine, so nothing wrong on the combustion end of things. Watch it be both turbo seals AND VCG…wouldn’t that be fun.
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09-19-2013, 04:17 PM | #24 | |
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Went out and did some logs and here's a 3rd gear one. Does anyone else think I might have a boost leak? I started hearing a high pitched whistle under moderate boost and it seems like my PWM goes up and boost isn't hitting target too.
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09-19-2013, 04:27 PM | #25 |
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Dude I will do hand stands if I can get VCG done for $300 in labor….I’m waiting on an estimate from the go to mechanic around my area, but I’m expecting much closer to $1K..Pretty sure dealers have charged well over $1K as well.
If it turns out to be both shot seals and VCG, I will literally shed tears. That is a lot of $ lol. Can you log that in Datazap? Native JB logs are the death of me.
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09-19-2013, 05:32 PM | #26 | |
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Anyways here is a link to the log on datazap: http://www.datazap.me/u/psmith95/919-3rd-gear-pull
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09-19-2013, 05:42 PM | #27 |
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Those are classic symptoms for sure.
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09-19-2013, 10:21 PM | #28 |
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Anyone have any ideas where the leak might be? When it's under moderate boost I hear a high pitched whistle from what sounds like the driver side of the engine bay. Under low or full boost I can't really hear it. With the car off I looked around at the FMIC, my Stett intake, BOV vacuum hose, and couldn't find anything loose or obvious.
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09-19-2013, 10:56 PM | #29 | |
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assume the hardest part of the job is fuel rail related and that cant justify 1000.00 bucks !
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09-19-2013, 10:57 PM | #30 | |
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I have a small leak at one of my meth nozzle bungs.....noticed the high pitched squealing first then I saw a bit of oil film on the chargepipe around my second nozzle. Fortunately mines too small to cause boost loss, but that's what to look for. You could also have a smoke test done iif you can't find any blowby. |
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09-19-2013, 11:21 PM | #31 | |
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09-20-2013, 10:40 AM | #32 |
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It’s all labor related, getting the valve cover off is a pain, fuel rails, all that good stuff. Actually swapping the gasket takes 2 minutes or so lol. Very frustrating. But if it turns out that this is the cause of my smoking and oil loss, and the turbos are good, that’s a total win. I could then focus on maxing the crap out of the stockers until they die, then RB time.
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09-20-2013, 10:41 AM | #33 |
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My VC was toast a year ago and symptoms were oil soaked plugs, boost leak, misfire, and I seem to recall a bit of a whine sound (this was on a completely stock car). Check for visible oil at any connections as others mentioned especially around the valve cover. In my case the plastic was visibly cracked, so check for damaged pieces as I'm sure you're aware.
Good luck getting it all sorted out, wish I could be of more help to you.
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09-20-2013, 11:37 AM | #34 | |
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09-20-2013, 12:34 PM | #35 |
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$300 for a VC Gasket is a steal. Best price I've seen is around $500.
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09-20-2013, 01:21 PM | #36 |
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Dealer will probably want to install a complete new valve cover, which is actually not a bad idea at all if there's any evidence of varnish/carbon build up under the cover. The stock PCV system must be perfectly clean to work at all. And valve covers get stiff, brittle, and warp over time. If you have over 60-80k on your car, we always recommend a new complete VC for N5x and N6x engines.
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09-20-2013, 01:29 PM | #37 | ||
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09-20-2013, 01:31 PM | #38 | |
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09-20-2013, 01:35 PM | #40 |
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Gotta be cost. BMW spent a gagillion dollars making the shortblock bulletproof, and probably 15 minutes or so figuring out all the peripheral stuff. Lol.
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09-20-2013, 01:40 PM | #41 | |
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Bmw Dealer in Socal wanted $1100 for VC gasket plus taxes. |
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09-20-2013, 01:50 PM | #42 |
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Cost and Weight are the leading reasons for plastic - it is much easier to form, much cheaper to buy raw material and much lighter than an equivalent expensive aluminum one!
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09-20-2013, 01:51 PM | #43 |
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just pulled the old VC gasket off last night, took me about 1.5hrs, maybe another hour to put everything back to together. installation is really not that bad, I don't have too much experience working on engine but even to me everything is pretty straightforward, I would say installation is no harder than doing downpipes on a ramp, dealer $1000 quote is complete rip off.
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09-20-2013, 04:51 PM | #44 | |
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