Rod bearings

skillets · 12-08-2020, 03:36 PM

What metal are my rod bearing made out of? Stock bearings 2010 e92 m3

acarr6 · 12-08-2020, 04:37 PM

Quote:

Originally Posted by skillets

What metal are my rod bearing made out of? Stock bearings 2010 e92 m3

Lead/copper

amrazM · 12-09-2020, 05:01 AM

unicorn tears

skillets · 12-09-2020, 07:03 AM

Quote:

Originally Posted by amrazM

unicorn tears

LOL

skillets · 12-09-2020, 07:14 AM

Can someone share their blackstone oil report copper findings for me on their stock 2008-2010 bearings? Please!

Helmsman · 12-09-2020, 09:15 AM

Quote:

Originally Posted by skillets

Can someone share their blackstone oil report copper findings for me on their stock 2008-2010 bearings? Please!

Here's a couple of threads out of a ton. Search and you shall find...

https://www.m3post.com/forums/showthread.php?t=1698430
https://www.m3post.com/forums/showthread.php?t=1253084
......

Cyberdemon · 12-09-2020, 10:08 AM

Quote:

Originally Posted by skillets

Can someone share their blackstone oil report copper findings for me on their stock 2008-2010 bearings? Please!

You'll see that Blackstone will give you the general averages on their report.

With that said, these reports need to be taken with a big grain of salt.

1 - The lack of bearing materials in a report is only a single sample of time. Unless there were reports from the first oil change, theres no indication that the bearings didn't undergo some significant wear event at a previous time, and those particles were washed away with previous oil changes.
2 - You would want to do a sample after a longer period of oil usage. I have a test kit sitting because I've hardly put any miles on the car.
3 - Prior records are important. My Previous owner only had limited oil changes done at the dealer which gives me the sense that either I have to trust he did them independantly more frequently, or drove the car quite a bit between changes. Since I don't want to leave that up to fate I have new bearings sitting on the shelf.

Scharbag · 12-09-2020, 02:19 PM

Oil sampling is next to worthless anyway. There have been a number of engines with ok reports that have shown very high wear when the bearings were replaced.

rcracin · 12-09-2020, 02:25 PM

Tin/aluminum most likely. 08-09 was the copper.

Scharbag · 12-09-2020, 04:10 PM

Quote:

Originally Posted by rcracin

Tin/aluminum most likely. 08-09 was the copper.

Nope.

My 2011 had lead/copper bearings. Some time in 2010 production they introduced the tin/aluminum.

12-08-2020, 03:36 PM	#1
skillets Private First Class 53 Rep 106 Posts Drives: 2010 alpine white e92 M3 Join Date: Mar 2020 Location: Hornell NY iTrader: (1)	Rod bearings What metal are my rod bearing made out of? Stock bearings 2010 e92 m3
	Appreciate 0 Tweet Quote

12-09-2020, 05:01 AM	#3
amrazM mTekMods 2149 Rep 2,906 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	unicorn tears __________________ 2011 Frozen Black/Fox Red E90 M3 650+WHP G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5
	Appreciate 0 Quote

12-09-2020, 07:14 AM	#5
skillets Private First Class 53 Rep 106 Posts Drives: 2010 alpine white e92 M3 Join Date: Mar 2020 Location: Hornell NY iTrader: (1)	Can someone share their blackstone oil report copper findings for me on their stock 2008-2010 bearings? Please!
	Appreciate 0 Quote

12-09-2020, 02:19 PM	#8
Scharbag Colonel 2631 Rep 2,141 Posts Drives: 2011 E92 M3 Join Date: Oct 2017 Location: Victoria iTrader: (0) Garage List 2011 BMW E92 M3 [0.00]	Oil sampling is next to worthless anyway. There have been a number of engines with ok reports that have shown very high wear when the bearings were replaced. __________________ 2011 E92 M3 - 6MT, ZCP, ZF LSD, ESS G1, Some other goodies...
	Appreciate 2 SYT_Shadow11496.00 PACarGuy683.50 Quote

12-09-2020, 02:25 PM	#9
rcracin Major 1243 Rep 1,288 Posts Drives: M3 Join Date: Jul 2012 Location: NYC iTrader: (3)	Tin/aluminum most likely. 08-09 was the copper.
	Appreciate 0 Quote