Opinions on rod bearing wear

Shazz · 07-30-2017, 04:05 AM

I'm after opinions on the wear of these rod bearings I had swapped out. The car is a 2007 model with 69k miles and in the last 2 years of my ownership, has had an annual oil change and engine warmed up properly. Oil analysis on 2k mile old oil showed very low levels of copper and lead.

Thanks

Razif · 07-30-2017, 04:27 AM

Damn that is some serious wear even for my laymen eyes.

SYT_Shadow · 07-30-2017, 01:51 PM

Lol, there are definitely noooooo rod bearing issues with our cars!!

I'm glad you got them swapped out OP, they definitely seem on the way out

Shredicus · 07-30-2017, 02:12 PM

Damn even the tops look pretty beat up

///M Power-Belgium · 07-30-2017, 02:26 PM

Quote:

Originally Posted by Shazz

I'm after opinions on the wear of these rod bearings I had swapped out. The car is a 2007 model with 69k miles and in the last 2 years of my ownership, has had an annual oil change and engine warmed up properly. Oil analysis on 2k mile old oil showed very low levels of copper and lead.

Thanks

Who did your oil analysis ?

rcracin · 07-30-2017, 02:28 PM

07 should be copper bearings. I've seen many 07-09 down to the copper and since yours aren't, they arent nearly as bad as it could get. Seems fairly normal by bmw standards.

Shazz · 07-30-2017, 02:31 PM

Millers Oil here in UK. They are fairly reputable. I'm hoping the damage was done before I bought it and regular maintenance has not caused further wear.

pbonsalb · 07-30-2017, 06:17 PM

The good news is that if you put stock ones back in you should be good for another 70k.

chris719 · 07-30-2017, 06:20 PM

Further evidence that oil analysis can't tell you a damn thing about the bearings

.

ImolaMoop · 07-30-2017, 06:41 PM

Some puzzling comments ITT.

TrAcK TRaP · 07-30-2017, 09:37 PM

Quote:

Originally Posted by pbonsalb

The good news is that if you put stock ones back in you should be good for another 70k.

deansbimmer · 07-31-2017, 09:14 AM

Pretty typical wear for the S65. You won't pull original bearings out of an S65 that look normal by industry standards.

TheMidnightNarwhal · 07-31-2017, 12:24 PM

Quote:

Originally Posted by chris719

Further evidence that oil analysis can't tell you a damn thing about the bearings

.

Why not? As someone pointed out there are not to copper yet, and to my unerstanding, they need to hit copper level before going rip right?

CHE///MIST3 · 08-01-2017, 02:55 PM

Is it reasonable to suppose that when we don't see much lead in the oil analysis (07-10 models) it's either that:

1.)The motor is running well and not wearing the bearings..or,
2.) The lead is so far gone that there is little left to wear out?

GM

Shazz · 08-02-2017, 08:31 AM

In case this is of interest... The lead and copper readings for my 2000 miles old oil were 3ppm each.

07-30-2017, 04:05 AM	#1
Shazz Private 34 Rep 93 Posts Drives: E92 M3 Join Date: Jul 2015 Location: SW London iTrader: (0)	Opinions on rod bearing wear - 2007 69k miles I'm after opinions on the wear of these rod bearings I had swapped out. The car is a 2007 model with 69k miles and in the last 2 years of my ownership, has had an annual oil change and engine warmed up properly. Oil analysis on 2k mile old oil showed very low levels of copper and lead. Thanks Attached Images
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07-30-2017, 04:27 AM	#2
Razif Private First Class 29 Rep 151 Posts Drives: Bmw e92 m3 Join Date: Jul 2017 Location: Kuala Lumpur, Malaysia iTrader: (0)	Damn that is some serious wear even for my laymen eyes.
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07-30-2017, 01:51 PM	#3
SYT_Shadow ///M Powered for Life 11495 Rep 10,331 Posts Drives: E90M/E92M/M4GTS/M4GT4/X5M Join Date: Sep 2010 Location: Greenwich, CT iTrader: (2)	Lol, there are definitely noooooo rod bearing issues with our cars!! I'm glad you got them swapped out OP, they definitely seem on the way out
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07-30-2017, 02:12 PM	#4
Shredicus Major 529 Rep 1,122 Posts Drives: E92 M3 Join Date: Jun 2014 Location: Spokane, WA iTrader: (12)	Damn even the tops look pretty beat up
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07-30-2017, 02:28 PM	#6
rcracin Major 1243 Rep 1,288 Posts Drives: M3 Join Date: Jul 2012 Location: NYC iTrader: (3)	07 should be copper bearings. I've seen many 07-09 down to the copper and since yours aren't, they arent nearly as bad as it could get. Seems fairly normal by bmw standards.
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07-30-2017, 02:31 PM	#7
Shazz Private 34 Rep 93 Posts Drives: E92 M3 Join Date: Jul 2015 Location: SW London iTrader: (0)	Millers Oil here in UK. They are fairly reputable. I'm hoping the damage was done before I bought it and regular maintenance has not caused further wear.
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07-30-2017, 06:17 PM	#8
pbonsalb Lieutenant General 5234 Rep 10,616 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	The good news is that if you put stock ones back in you should be good for another 70k.
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07-30-2017, 06:20 PM	#9
chris719 Major General 7334 Rep 7,299 Posts Drives: '08 M Roadster Join Date: Oct 2007 Location: NJ iTrader: (0)	Further evidence that oil analysis can't tell you a damn thing about the bearings .
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07-30-2017, 06:41 PM	#10
ImolaMoop New Member 51 Rep 32 Posts Drives: Sold Join Date: Nov 2016 Location: Shenzhen China iTrader: (0)	Some puzzling comments ITT.
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07-31-2017, 09:14 AM	#12
deansbimmer BimmerPost Supporting Vendor 3752 Rep 2,907 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 BMW M3 [0.00] 2013 BMW M3 [0.00] 2011 X5M [0.00] 2011 BMW M3 [0.00]	Pretty typical wear for the S65. You won't pull original bearings out of an S65 that look normal by industry standards.
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08-01-2017, 02:55 PM	#14
CHE///MIST3 Captain 371 Rep 615 Posts Drives: E92 M3 6MT Space/Black Join Date: Mar 2015 Location: Houston, TX iTrader: (6) Garage List 2009 BMW M3 [0.00] 2007 BMW 328i [0.00]	Is it reasonable to suppose that when we don't see much lead in the oil analysis (07-10 models) it's either that: 1.)The motor is running well and not wearing the bearings..or, 2.) The lead is so far gone that there is little left to wear out? GM
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08-02-2017, 08:31 AM	#15
Shazz Private 34 Rep 93 Posts Drives: E92 M3 Join Date: Jul 2015 Location: SW London iTrader: (0)	In case this is of interest... The lead and copper readings for my 2000 miles old oil were 3ppm each.
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