So what IS a “spun bearing”, I asked…

FlyinLowSD · 01-13-2024, 05:23 PM

While I thoroughly enjoy dailying my F06 640i GC (much more than I should - LONG freeway commute), I would love to add an M6 one of these years. Yet I see so much about rod bearing issues. I had to ask the What and Why given that my experience is limited there.

Just happened upon a thorough presentation by none other than Chris Fix:
What Causes a Spun Bearing in an Engine?

Skip right up to 6:50… Excellent depiction of what has happened to a blown engine from rod bearing failure, hands-on with the dismantled engine and drive history that led to the failure. Thought you all might enjoy this also.

Now, if only could get driving history on a used vic… wouldn’t THAT be fantastic! It is hard enough to get maintenance records sometimes, and CarFax has proven to be of questionable utility since shops only enter what they want to enter into that database.

Until BMW brings back the 6 in all of its unique glory (our swooped center console at minimum)… will continue my casual hunt.

Enjoy your weekend, all!

thebmw · 01-20-2024, 03:14 PM

This is a great post! Thank you for sharing. I thought I knew what a "spun bearing" was, but this description really helped me understand the actual mechanism of action instead of just the end result. A must see for everyone.

danielgmanm6 · 01-21-2024, 08:20 AM

[QUOTE=FlyinLowSD;30811292]While I thoroughly enjoy dailying my F06 640i GC (much more than I should - LONG freeway commute), I would love to add an M6 one of these years. Yet I see so much about rod bearing issues. I had to ask the What and Why given that my experience is limited there.

Just happened upon a thorough presentation by none other than Chris Fix:
What Causes a Spun Bearing in an Engine?

Skip right up to 6:50… Excellent depiction of what has happened to a blown engine from rod bearing failure, hands-on with the dismantled engine and drive history that led to the failure. Thought you all might enjoy

Thank you for posting.

01-13-2024, 05:23 PM	#1
FlyinLowSD Tinker 34 Rep 154 Posts Drives: 2017 640i GC,1994 300ZX MT 2+2 Join Date: Jul 2022 Location: California iTrader: (0)	So what IS a “spun bearing”, I asked… While I thoroughly enjoy dailying my F06 640i GC (much more than I should - LONG freeway commute), I would love to add an M6 one of these years. Yet I see so much about rod bearing issues. I had to ask the What and Why given that my experience is limited there. Just happened upon a thorough presentation by none other than Chris Fix: What Causes a Spun Bearing in an Engine? Skip right up to 6:50… Excellent depiction of what has happened to a blown engine from rod bearing failure, hands-on with the dismantled engine and drive history that led to the failure. Thought you all might enjoy this also. Now, if only could get driving history on a used vic… wouldn’t THAT be fantastic! It is hard enough to get maintenance records sometimes, and CarFax has proven to be of questionable utility since shops only enter what they want to enter into that database. Until BMW brings back the 6 in all of its unique glory (our swooped center console at minimum)… will continue my casual hunt. Enjoy your weekend, all!
	Appreciate 2 TinCanSailor629.50 danielgmanm687.00 Tweet Quote

01-20-2024, 03:14 PM	#2
thebmw Post Advisor 1632 Rep 1,694 Posts Drives: More Manuals than Automatics Join Date: Feb 2010 Location: Illinois iTrader: (10)	This is a great post! Thank you for sharing. I thought I knew what a "spun bearing" was, but this description really helped me understand the actual mechanism of action instead of just the end result. A must see for everyone.
	Appreciate 2 danielgmanm687.00 FlyinLowSD34.00 Quote

01-21-2024, 08:20 AM	#3
danielgmanm6 Private First Class 87 Rep 179 Posts Drives: 2013 BMW ///M6 F13 Join Date: May 2022 Location: Raleigh Nc iTrader: (0) Garage List 2013 Bmw M6 [0.00] [0.00] [0.00]	[QUOTE=FlyinLowSD;30811292]While I thoroughly enjoy dailying my F06 640i GC (much more than I should - LONG freeway commute), I would love to add an M6 one of these years. Yet I see so much about rod bearing issues. I had to ask the What and Why given that my experience is limited there. Just happened upon a thorough presentation by none other than Chris Fix: What Causes a Spun Bearing in an Engine? Skip right up to 6:50… Excellent depiction of what has happened to a blown engine from rod bearing failure, hands-on with the dismantled engine and drive history that led to the failure. Thought you all might enjoy Thank you for posting.
	Appreciate 0 Quote