What are rod bearings made of

bmwfst1 · 10-18-2016, 05:09 PM

Hello everyone. I'm sure this has been said on some other thread before. But I would like to know what my rod bearings are made of. I have a 2010 m3. Thanks

tdott · 10-18-2016, 05:26 PM

Lead/Cooper.

Ingenio · 10-18-2016, 06:23 PM

Sugar and spice and all things nice...

Old ones lead / copper... New ones don't have the copper layer so you can't see the wear as easily.

aussiem3 · 10-18-2016, 07:46 PM

Quote:

Originally Posted by Ingenio

Sugar and spice and all things nice...

...

admranger · 10-18-2016, 10:07 PM

New ones are snips and snails and puppy dog tails...

Green-Eggs · 10-18-2016, 11:56 PM

Quote:

Originally Posted by bmwfst1

Hello everyone. I'm sure this has been said on some other thread before. But I would like to know what my rod bearings are made of. I have a 2010 m3. Thanks

2008-2010.5 has lead copper bearings.
http://wiki.rcollins.org/core/index.php/Engine_Specs_-_S65_Rod_Bearings#Production_and_Composition

2010,5-2013 has tin aluminum bearings.
http://wiki.rcollins.org/core/index.php/Engine_Specs_-_S65_Rod_Bearings#Production_and_Composition_2

Nobody is really sure of the cut off dates for the switch because some older 2010s had the new bearings while other of the same approximate build date had the old bearings.

bmwfst1 · 10-19-2016, 09:28 AM

Well my car is 09 production date so my bearings must be lead and copper
Thanks

L4ces · 10-19-2016, 11:08 AM

Quote:

Originally Posted by Green-Eggs

Quote:

Originally Posted by bmwfst1

Hello everyone. I'm sure this has been said on some other thread before. But I would like to know what my rod bearings are made of. I have a 2010 m3. Thanks

2008-2010.5 has lead copper bearings.
http://wiki.rcollins.org/core/index.php/Engine_Specs_-_S65_Rod_Bearings#Production_and_Composition

2010,5-2013 has tin aluminum bearings.
http://wiki.rcollins.org/core/index.php/Engine_Specs_-_S65_Rod_Bearings#Production_and_Composition_2

Nobody is really sure of the cut off dates for the switch because some older 2010s had the new bearings while other of the same approximate build date had the old bearings.

Did the crankshaft material change to accommodate the change with hardened bearings?

Richbot · 10-19-2016, 12:28 PM

tears

admranger · 10-19-2016, 12:45 PM

Quote:

Originally Posted by Richbot

tears

anerbe · 10-19-2016, 01:26 PM

Quote:

Originally Posted by Richbot

tears

Haha yes - remember there's multiple layers.

I would say tears and disappointment.

loveskiing · 10-19-2016, 03:45 PM

Quote:

Originally Posted by anerbe

Quote:

Originally Posted by Richbot

tears

Haha yes - remember there's multiple layers.

I would say tears and disappointment.

Mine are made of Swiss cheese...I know that because I change them with each oil change as others have directed me to do...

OzCraig · 10-19-2016, 04:26 PM

Quote:

Originally Posted by anerbe

Haha yes - remember there's multiple layers.

I would say tears and disappointment.

0.03 microns of tears, 0.1 microns of disappointment and 3mm of money. The outer coating is a 50/50 mix of fear and paranoia.

WingZeroX5 · 10-19-2016, 05:01 PM

Gallium

whats77inaname · 10-19-2016, 05:06 PM

Quote:

Originally Posted by Richbot

Unicorn tears

Fixed.

10-18-2016, 05:09 PM	#1
bmwfst1 Pwrdbym 71 Rep 363 Posts Drives: red 2010 bmwm3 Join Date: Jan 2016 Location: maryland iTrader: (0)	What are rod bearings made of Hello everyone. I'm sure this has been said on some other thread before. But I would like to know what my rod bearings are made of. I have a 2010 m3. Thanks
	Appreciate 0 Tweet Quote

10-18-2016, 05:26 PM	#2
tdott S.FL S65 Specialist 4545 Rep 4,341 Posts Drives: M3 Join Date: Nov 2010 Location: South FL / 6ix iTrader: (4)	Lead/Cooper.
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10-18-2016, 06:23 PM	#3
Ingenio Major 189 Rep 1,171 Posts Drives: 2008 Space Grey E92 M3 (6MT) Join Date: Apr 2015 Location: Perth iTrader: (0)	Sugar and spice and all things nice... Old ones lead / copper... New ones don't have the copper layer so you can't see the wear as easily.
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10-18-2016, 10:07 PM	#5
admranger Retired Curmudgeon 4232 Rep 5,357 Posts Drives: '19 X3M40i Join Date: May 2011 Location: Las Vegas, NV iTrader: (1)	New ones are snips and snails and puppy dog tails... __________________ '19 X3 M40 Carbon Black/Oyster, '21 X7 40i AW/Black, Past BMWs: '18 M550i, '18 330 GT, '16 X5 40e, '11 E90M3, '06 X5 4.4, '03 330i ZHP, '02 M3, '97 Z3 2.8, '96 Z3 2.8, '95 M3 (2x), '94 530i (manual), '92 525i (manual), '88 M3, '87 325iS
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10-19-2016, 09:28 AM	#7
bmwfst1 Pwrdbym 71 Rep 363 Posts Drives: red 2010 bmwm3 Join Date: Jan 2016 Location: maryland iTrader: (0)	Well my car is 09 production date so my bearings must be lead and copper Thanks Last edited by bmwfst1; 10-19-2016 at 10:09 AM..
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10-19-2016, 12:28 PM	#9
Richbot Major General 2835 Rep 5,493 Posts Drives: Jerez Black E90 Join Date: Sep 2007 Location: STL iTrader: (5)	tears __________________
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10-19-2016, 05:01 PM	#14
WingZeroX5 Colonel 820 Rep 2,367 Posts Drives: F80 / F30 Join Date: Mar 2010 Location: FL iTrader: (14)	Gallium
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