why is my inside engine peeling (oil fill area)

Cbozz · 10-06-2015, 05:27 PM

just discovered this... does anyone know if this is the inside lining peeling or is it a sludge??? wtf is this..? I rubbed it with my finger and came off pretty easy!
let me know what you think

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thekurgan · 10-06-2015, 05:31 PM

I've seen this before on several M3s here on the board. It looks like whatever coating was used, it's shit and perhaps oil is attacking it. Other than removing them and having them re-coated, there isn't much you can do.

IIAp3x · 10-06-2015, 07:58 PM

I did not think that they coated the inside of the casing with paint;only the outside... As far as the milky colored stuff on the inside looks like sludge to me... The fact that it is milky in appearance tells me that condensation is collecting inside the casing which is normal if you do a lot of really short drives in the car... The sludge, however is not normal... 7500 mile oil changes will prevent it, but will not cure it once it has already occurred... If it is indeed sludge that is...

Get lit · 10-06-2015, 08:07 PM

Have you pulled your oil filter to see if any of it is collecting on it? I'd do several short oil changes to flush some of it out! Looks like someone straight up shit in your engine!

Adrian g. · 10-06-2015, 08:32 PM

Quite common on some cars. http://www.m3post.com/forums/showthread.php?t=935340

pbonsalb · 10-07-2015, 06:33 AM

BMW used metal valve covers on early motors. I think they were made out of magnesium. Anyway, over time, paint flaked off, both inside and outside. You could buy another set of valve covers or take yours off and have them powder coated inside and out. Some later cars have plastic valve covers that are unpainted. Not sure why the E9xM3 needed metal covers. I do not think the flaking paint does any harm but I also do not think it does any good.

Cbozz · 10-07-2015, 02:56 PM

Quote:

Originally Posted by pbonsalb

BMW used metal valve covers on early motors. I think they were made out of magnesium. Anyway, over time, paint flaked off, both inside and outside. You could buy another set of valve covers or take yours off and have them powder coated inside and out. Some later cars have plastic valve covers that are unpainted. Not sure why the E9xM3 needed metal covers. I do not think the flaking paint does any harm but I also do not think it does any good.

this thread brought me some piece of mind, however I will be changing my oil in 2k miles and i'm planning on sending a sample to BlackStone to see how engine is doing

thekurgan · 10-07-2015, 05:13 PM

Quote:

Originally Posted by pbonsalb

BMW used metal valve covers on early motors. I think they were made out of magnesium. Anyway, over time, paint flaked off, both inside and outside. You could buy another set of valve covers or take yours off and have them powder coated inside and out. Some later cars have plastic valve covers that are unpainted. Not sure why the E9xM3 needed metal covers. I do not think the flaking paint does any harm but I also do not think it does any good.

Stiffer the better. Warpage = oil seeps and unmetered air.

BMRLVR · 10-07-2015, 05:27 PM

Quote:

Originally Posted by thekurgan

Quote:

Originally Posted by pbonsalb

BMW used metal valve covers on early motors. I think they were made out of magnesium. Anyway, over time, paint flaked off, both inside and outside. You could buy another set of valve covers or take yours off and have them powder coated inside and out. Some later cars have plastic valve covers that are unpainted. Not sure why the E9xM3 needed metal covers. I do not think the flaking paint does any harm but I also do not think it does any good.

Stiffer the better. Warpage = oil seeps and unmetered air.

Unmetered air into the crankcase? Ha ha!

anom3 · 10-07-2015, 05:33 PM

Does anyone know why BMW decided to paint the inside of the covers?

I would think this is not a good idea with the heat and constant fluid splashing which are petroleum based...

Am I missing something here?

thekurgan · 10-07-2015, 05:36 PM

Quote:

Originally Posted by BMRLVR

Unmetered air into the crankcase? Ha ha!

Oh shit, yeah, I'm not thinking today.

Flying Ace · 10-08-2015, 01:18 AM

Quote:

Originally Posted by Cbozz

this thread brought me some piece of mind, however I will be changing my oil in 2k miles and i'm planning on sending a sample to BlackStone to see how engine is doing

Don't worry, it'll be fine. Mine also caked up inside as well and my Blackstone came back fine

10-06-2015, 05:27 PM	#1
Cbozz Colonel 848 Rep 2,852 Posts Drives: M3 Join Date: Feb 2012 Location: South Florida/ St. Louis iTrader: (28) Garage List 2016 BMW X5M [0.00] 08 BMW M3 [0.00] 14 BMW X5 50i - sold [0.00] 09 BMW 335i - Sold [0.00] 09 BMW 328i - Sold [0.00] 07 BMW 328i - Sold [0.00]	why is my inside engine peeling (oil fill area) just discovered this... does anyone know if this is the inside lining peeling or is it a sludge??? wtf is this..? I rubbed it with my finger and came off pretty easy! let me know what you think [IMG][/IMG] [IMG][/IMG] __________________ Evolve, Eisenmann, Strasse, StopTech, Active Autowerke
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10-06-2015, 05:31 PM	#2
thekurgan Bad Lieutenant 245 Rep 3,516 Posts Drives: E39M5 Join Date: Aug 2007 Location: Chattanooga iTrader: (0) Garage List 2008 BMW M3 [0.00]	I've seen this before on several M3s here on the board. It looks like whatever coating was used, it's shit and perhaps oil is attacking it. Other than removing them and having them re-coated, there isn't much you can do. __________________ 02 E39M5 \| TiAg/Schwartz \| Tubi Rumore \| Ultimate Ti Pedals \| E60 SSK \| Coby Alcantara \| StrongStrut STB
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10-06-2015, 07:58 PM	#3
IIAp3x Captain 188 Rep 656 Posts Drives: 2008 BMW E92 M3 Join Date: Apr 2015 Location: Perdido Key, FL iTrader: (0) Garage List 2008 Mercedes C300 [0.00] 2009 Mercedes ML320 ... [0.00] 2008 BMW E92 M3 [0.00]	I did not think that they coated the inside of the casing with paint;only the outside... As far as the milky colored stuff on the inside looks like sludge to me... The fact that it is milky in appearance tells me that condensation is collecting inside the casing which is normal if you do a lot of really short drives in the car... The sludge, however is not normal... 7500 mile oil changes will prevent it, but will not cure it once it has already occurred... If it is indeed sludge that is... Last edited by IIAp3x; 10-06-2015 at 08:05 PM..
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10-06-2015, 08:07 PM	#4
Get lit HMFIC 383 Rep 522 Posts Drives: 2016 F80 M3 Join Date: Oct 2014 Location: Charleston SC iTrader: (1) Garage List 2016 BMW M3 [0.00]	Have you pulled your oil filter to see if any of it is collecting on it? I'd do several short oil changes to flush some of it out! Looks like someone straight up shit in your engine!
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10-06-2015, 08:32 PM	#5
Adrian g. Lieutenant 253 Rep 436 Posts Drives: German Join Date: Nov 2011 Location: Dallas, TX iTrader: (11)	Quite common on some cars. http://www.m3post.com/forums/showthread.php?t=935340
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10-07-2015, 06:33 AM	#6
pbonsalb Lieutenant General 7679 Rep 13,759 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	BMW used metal valve covers on early motors. I think they were made out of magnesium. Anyway, over time, paint flaked off, both inside and outside. You could buy another set of valve covers or take yours off and have them powder coated inside and out. Some later cars have plastic valve covers that are unpainted. Not sure why the E9xM3 needed metal covers. I do not think the flaking paint does any harm but I also do not think it does any good.
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10-07-2015, 05:33 PM	#10
anom3 Captain 332 Rep 957 Posts Drives: F30 335ix Join Date: Apr 2014 Location: Behind the wheel iTrader: (0)	Does anyone know why BMW decided to paint the inside of the covers? I would think this is not a good idea with the heat and constant fluid splashing which are petroleum based... Am I missing something here?
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