Rod Bearings out of Heavily Track 2011 E92 M3

warp10 · 04-22-2016, 09:55 AM

Hey guys here are the pics of the bearings out of my heavily e92 M3. Roughly 8,000 track miles and 20,000 Street miles, so 28,000 on motor. Regular oil changes with castrol 10w60 then switched to Motul 300v 15w50 once no longer on the street. thought they looked better than I expected.

marksae · 04-22-2016, 10:03 AM

Is that pitting on the bearings? Or is it just dirty?

warp10 · 04-22-2016, 10:05 AM

Quote:

Originally Posted by marksae

Is that pitting on the bearings? Or is it just dirty?

I asked about that and looked at the bearings. seems to just be "dirty" spots. Shop said they have seen them on all the ones they have done.

doogee · 04-22-2016, 10:07 AM

Please share these in the new Rod Bearing photo thread I made if you get a chance!

Those look pretty bad for 28,000!

Thanks

warp10 · 04-22-2016, 10:09 AM

Quote:

Originally Posted by doogee

Please share these in the new Rod Bearing photo thread I made if you get a chance!

Those look pretty bad for 28,000!

Thanks

done

Doc Oc · 04-22-2016, 10:34 AM

Looks like lots of debris grooves and pitting. What'd you replace them with?

warp10 · 04-22-2016, 10:36 AM

Quote:

Originally Posted by Doc Oc

Looks like lots of debris grooves and pitting. What'd you replace them with?

they are smooth and no pitting seemed present. I replaced with VAC coated bearings and OEM bolts.

lmendz71 · 04-22-2016, 10:46 AM

The looks are promising since I don't track my car!

Bx Tpr · 04-22-2016, 10:46 AM

Thanks for the pics. Do you run an aftermarket air filter on the car or oem filter?

RoundelObsession · 04-22-2016, 10:49 AM

Quote:

Originally Posted by Bx Tpr

Thanks for the pics. Do you run an aftermarket air filter on the car or oem filter?

+1

Good Question!

warp10 · 04-22-2016, 11:07 AM

Quote:

Originally Posted by Bx Tpr

Thanks for the pics. Do you run an aftermarket air filter on the car or oem filter?

yes AFE wet filter.

Longboarder · 04-22-2016, 11:35 AM

Those looked like mine which were 32k miles all supercharged and a lot of track and airstrip miles.

Doc Oc · 04-22-2016, 12:12 PM

Quote:

Originally Posted by warp10

they are smooth and no pitting seemed present. I replaced with VAC coated bearings and OEM bolts.

Maybe groove isn't the right word since these bearings aren't lead and probably didn't groove, but this picture clearly shows debris streaks. Regarding the other marks, I guess if you can't feel them they're not pits, but they're something

warp10 · 04-22-2016, 12:14 PM

Quote:

Originally Posted by Doc Oc

Quote:

Originally Posted by warp10

they are smooth and no pitting seemed present. I replaced with VAC coated bearings and OEM bolts.

Not to sound argumentative but this picture clearly shows both. Maybe groove isn't the right word since these bearings aren't lead and probably didn't groove, but there are clearly signs of debris.

no worries as I am not an expert. But to me they seem to be more like "water" spots from when they cleaned the bearings of oil. There is no present/fellable (not a word) groove or pitting. But don't know for sure.

M43S7RO · 04-22-2016, 12:16 PM

Quote:

Originally Posted by RoundelObsession

+1

Good Question!

I've wondered if the design of the oem filter contributes to the rod bearing issue. It seems that with the bumpiness of a ride, it is easy for the filter to move around and allow debris through at the point where it is only pushed against the elbow.

doogee · 04-22-2016, 12:47 PM

Quote:

Originally Posted by M43S7RO

I've wondered if the design of the oem filter contributes to the rod bearing issue.

Definitely not.

Bx Tpr · 04-22-2016, 12:54 PM

Quote:

Originally Posted by M43S7RO

Quote:

Originally Posted by RoundelObsession

+1

Good Question!

I've wondered if the design of the oem filter contributes to the rod bearing issue. It seems that with the bumpiness of a ride, it is easy for the filter to move around and allow debris through at the point where it is only pushed against the elbow.

I think the oem filter is keeping the dirt out of the engine. I'm starting to think that the aftermarket filter elements are letting in too much crap causing SOME of the damage. I could be wrong.

pbonsalb · 04-22-2016, 01:01 PM

It would be scouring your cylinder walls if it was getting past the three rings and into the oil. That would lead to increased oil consumption as the oil becomes able to get past the rings and into the chamber, and smokier exhaust.

kb9uwu · 04-22-2016, 01:31 PM

Quote:

Originally Posted by doogee

Please share these in the new Rod Bearing photo thread I made if you get a chance!

Those look pretty bad for 28,000!

Thanks

Again, they look great to me.

BanjoPaterson · 04-22-2016, 07:30 PM

Quote:

Originally Posted by kb9uwu

Again, they look great to me.

The RB look fine to me as well. From other threads, I've seen MUCH worse.

aus · 04-23-2016, 12:31 AM

The new bearings don't show the layers like the original bearings. I don't recall seeing newer bearings look beat to sh!t like the copper ones, but the new engines still blow.
Thanks for the pics. Just not sure what to think of them.

Green-Eggs · 04-23-2016, 10:59 AM

These bearings are the newer bimetal bearings. They look in real bad shape. Pitting, particle streaks, and uneven wear are the signs that these are in real bad shape.

04-22-2016, 09:55 AM	#1
warp10 Lieutenant Colonel 776 Rep 1,718 Posts Drives: 2011 M3 Jet Black:ZCP, ZCV, ZP Join Date: May 2011 Location: Atlanta, Ga iTrader: (7) Garage List 2011 M3 [10.00] 2011 28i X3 [0.00]	Rod Bearings out of Heavily Track 2011 E92 M3 Hey guys here are the pics of the bearings out of my heavily e92 M3. Roughly 8,000 track miles and 20,000 Street miles, so 28,000 on motor. Regular oil changes with castrol 10w60 then switched to Motul 300v 15w50 once no longer on the street. thought they looked better than I expected. Attached Images __________________
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04-22-2016, 10:03 AM	#2
marksae First Lieutenant 36 Rep 368 Posts Drives: ///M Join Date: Jul 2011 Location: Bay Area iTrader: (6)	Is that pitting on the bearings? Or is it just dirty? __________________ 04 E46 M3 6MT - AW / Cinn 93 FD RX-7 Base Manual - BB / Blk IG: @gearheadtwins
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04-22-2016, 10:07 AM	#4
doogee Major 748 Rep 1,256 Posts Drives: '08 M3, '09 328xi Sport Wagon Join Date: Oct 2008 Location: Ancaster, ON, Canada iTrader: (0)	Please share these in the new Rod Bearing photo thread I made if you get a chance! Those look pretty bad for 28,000! Thanks __________________
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04-22-2016, 10:34 AM	#6
Doc Oc Captain Fatbelly 1422 Rep 1,994 Posts Drives: C63 amg Join Date: May 2015 Location: Upyourbuttandtotheleft iTrader: (0)	Looks like lots of debris grooves and pitting. What'd you replace them with? __________________ 2013 c63 Amg coupe p31, v7 tune, plm headers, armytrix downpipes, EflexFuel 2008 dct coupe, evolve engine/dct tune, ttp, ms intake, megan exhaust, cf ds. Sold.
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04-22-2016, 10:46 AM	#8
lmendz71 Private First Class 30 Rep 146 Posts Drives: 2008 M3 Sedan Interlagos Blue Join Date: Jul 2011 Location: CA,USA iTrader: (0)	The looks are promising since I don't track my car!
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04-22-2016, 10:46 AM	#9
Bx Tpr Captain 123 Rep 891 Posts Drives: 23 CSL Join Date: Feb 2009 Location: NY iTrader: (8)	Thanks for the pics. Do you run an aftermarket air filter on the car or oem filter?
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04-22-2016, 11:35 AM	#12
Longboarder Major General 3430 Rep 6,771 Posts Drives: 2016 BMW i8 Join Date: Dec 2006 Location: Monarch Beach iTrader: (1) Garage List 2012 BMW e92 M3 [0.00] 2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00]	Those looked like mine which were 32k miles all supercharged and a lot of track and airstrip miles. __________________ Current BMWs: 2022 X5 40i, 2016 X5 50i 2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
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04-22-2016, 01:01 PM	#18
pbonsalb Lieutenant General 5227 Rep 10,610 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	It would be scouring your cylinder walls if it was getting past the three rings and into the oil. That would lead to increased oil consumption as the oil becomes able to get past the rings and into the chamber, and smokier exhaust.
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04-23-2016, 12:31 AM	#21
aus Major General 890 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	The new bearings don't show the layers like the original bearings. I don't recall seeing newer bearings look beat to sh!t like the copper ones, but the new engines still blow. Thanks for the pics. Just not sure what to think of them. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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04-23-2016, 10:59 AM	#22
Green-Eggs BimmerPost Supporting Vendor 1439 Rep 1,614 Posts Drives: BMW Join Date: Jul 2007 Location: Los Angeles iTrader: (3)	These bearings are the newer bimetal bearings. They look in real bad shape. Pitting, particle streaks, and uneven wear are the signs that these are in real bad shape.
	Appreciate 0 Quote