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      03-22-2019, 06:54 PM   #969
Dave07997S
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Quote:
Originally Posted by deansbimmer View Post
Here's a set from today coming from a 2008 E90 M3. One of the worst non-spun sets we've pulled in a while...

At 132k miles the owner wanted to proactively replace his bearings for the peace of mind. There were no symptoms- the engine ran fine with no abnormal tendencies or sounds when it arrived. Just goes to show you that you can't be sure about your bearings. You're fine one mile, the next mile you're not.

These shells were so poorly worn and overheated that they were bowed enough to "clip" onto each journal. Very luck there was no journal damage. Scary, and in the nick of time.
Holy Shit!!!
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      03-22-2019, 07:02 PM   #970
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Quote:
Originally Posted by Teufel_Hunden View Post
Mileage/year?
2009 42,000 miles
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      03-22-2019, 07:11 PM   #971
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Quote:
Originally Posted by Scharbag View Post
What do you mean by "clip on?" Is this when you pull the rod end off that the bearing stays stuck to the crank?

Cheers,
Basically. It is when the bearing over heated to a point where its shape is changed and grabbing onto the crank. I saw it once (on a different car) when I was at the indy shop.
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      03-22-2019, 09:25 PM   #972
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Quote:
Originally Posted by CaptainKirk2008 View Post
Quote:
Originally Posted by Teufel_Hunden View Post
Mileage/year?
2009 42,000 miles
Wow
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      03-22-2019, 11:07 PM   #973
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Quote:
Originally Posted by Teufel_Hunden View Post
Quote:
Originally Posted by CaptainKirk2008 View Post
Quote:
Originally Posted by Teufel_Hunden View Post
Mileage/year?
2009 42,000 miles
Wow
And the S65 bearing issue is blown out of proportion...

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      03-23-2019, 09:43 AM   #974
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Heres a good one for everyone!

2008 with 162k - approximately 23k on one oil change (yes, I'm probably the dumbest person in this thread for forgetting about changing my oil)


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      03-23-2019, 01:36 PM   #975
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Originally Posted by bmwlover0725 View Post
Heres a good one for everyone!

2008 with 162k - approximately 23k on one oil change (yes, I'm probably the dumbest person in this thread for forgetting about changing oil
So is that copper colour or just old oil on the shells mate?
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      03-24-2019, 05:50 PM   #976
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Here are mine. Just removed from a 2013 e92 zcp with 32k miles and replaced with BE bearings and ARP bolts by SV Bimmer.

Great shop for those of you in the SF Bay Area. Also did spark plugs and engine mounts.

Click the photo for full size.
Attached Images
 
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      03-24-2019, 10:35 PM   #977
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Contributing my example

MY2010 E90 ZCP, ~57k miles. Oil pan gasket was going and since the pan was coming off, thought I'd get it done. No symptoms or sounds in my case. I wasn't there for the swap, the workshop inspected the crank journals and thought they were fine, no scoring or excessive wear.

All


Top


Bottom


Close-ups



Last edited by L3stat; 03-24-2019 at 10:39 PM. Reason: Adding detail on journals
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      03-28-2019, 10:32 AM   #978
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Quote:
Originally Posted by Helmsman View Post
So is that copper colour or just old oil on the shells mate?
That would be pure copper. They were COMPLETELY shot. Probably some of the worst I've ever seen. Of course it had to be on my own car
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      03-28-2019, 11:31 AM   #979
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Quote:
Originally Posted by bmwlover0725 View Post
That would be pure copper. They were COMPLETELY shot. Probably some of the worst I've ever seen. Of course it had to be on my own car
Didnt look too nice then! Went with extended clearance shells?
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      03-28-2019, 11:32 AM   #980
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Quote:
Originally Posted by Frozen View Post
Here are mine. Just removed from a 2013 e92 zcp with 32k miles and replaced with BE bearings and ARP bolts by SV Bimmer.

Great shop for those of you in the SF Bay Area. Also did spark plugs and engine mounts.

Click the photo for full size.
Funny wear pattern, they are zebra also in real world or photo playing tricks Frozen?
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      03-28-2019, 11:46 AM   #981
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Quote:
Originally Posted by Helmsman View Post
Didnt look too nice then! Went with extended clearance shells?
He mentioned on the other thread that the crank is scored. I can see that from the terrible condition of #2 RB.
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      03-28-2019, 11:51 AM   #982
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Quote:
Originally Posted by deansbimmer View Post
Here's a set from today coming from a 2008 E90 M3. One of the worst non-spun sets we've pulled in a while...
What do you make of mine? 101,000km.

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      03-28-2019, 02:00 PM   #983
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Quote:
Originally Posted by Helmsman View Post
Quote:
Originally Posted by Frozen View Post
Here are mine. Just removed from a 2013 e92 zcp with 32k miles and replaced with BE bearings and ARP bolts by SV Bimmer.

Great shop for those of you in the SF Bay Area. Also did spark plugs and engine mounts.

Click the photo for full size.
Funny wear pattern, they are zebra also in real world or photo playing tricks Frozen?
The photo is 100% accurate. That's how they look to the eye as well. Indeed a strange wear pattern for only 32k miles.
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      03-28-2019, 02:49 PM   #984
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Quote:
Originally Posted by Helmsman View Post
Funny wear pattern, they are zebra also in real world or photo playing tricks Frozen?
.and not the only ones that look like that after being pulled...It makes me wonder what else is going in these motors that causes that bizarre "zebra" pattern of wear.

GM
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      03-28-2019, 02:50 PM   #985
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Exclamation My Rod Bearings after 35K (2009)

Hi All,

I purchased my car as a weekend toy 6 months ago... done 1000 miles in it. I knew and was prepared to get the RBs done in any case even with a low mileage...

Here are my bearings on an e92 M3 - 2009 @ 35K miles

I did a millers oil report just before I got them done. Showed above average Lead..

Report is here - https://ibb.co/2cmjDgr

Pictures are here - https://ibb.co/Kx3FgfR

Pleased I got them done... went for VAC and ARP bolts (had 2 mounts replaced as well)

Thanks all for your sharing - its helped me make the right call...

Regards

Greg

Last edited by greg_p; 03-28-2019 at 02:56 PM. Reason: added info
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      03-28-2019, 04:33 PM   #986
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Quote:
Originally Posted by CHE///MIST3 View Post
.and not the only ones that look like that after being pulled...It makes me wonder what else is going in these motors that causes that bizarre "zebra" pattern of wear.

GM
Might just be the later bearings that get the zebra pattern of wear. They are harder bearings.
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      03-29-2019, 09:42 AM   #987
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Quote:
Originally Posted by kyrix1st View Post
He mentioned on the other thread that the crank is scored. I can see that from the terrible condition of #2 RB.
I'm not even sure how you can tell, but you're spot on! #2 had scoring at the very edge of the bearing. Unfortunately they replaced with OEM. Dealer wouldn't go with WPC. I know they wont last long either even with no damage to the crank. It really annoys me, but I'm glad to have the car back for now. At the end of my loan I'll be replacing the motor.
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      03-31-2019, 12:32 AM   #988
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Heres mine poorly arranged, came out at 89k

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      03-31-2019, 02:37 AM   #989
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^^ They've seen some shit, they deserve some respect.. line those suckers up next time let's see consistent wear across the cylinders left to right, top and bottom. There's some scoring in some of those, how'd the crank look?
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      03-31-2019, 07:48 PM   #990
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Here are my rod bearings, pulled at 59,500 Miles. Excellent work done by
deansbimmer Mporium BMW in McKinney, TX. This is a 2011 E92.

I've had the car 3 years, got it at 25K miles. I've always used Castrol 10w60 and have done 5-7K mile oil changes. I drive the car like a grandma and always wait for the cold start to finish before setting off. I have all the service records from the previous owner, but I think this car had a harder life for the first 25K. Coulter at Mporium noticed my strut bars are on upside down and I have seen other things that lead me to believe this engine has been pulled before.

View post on imgur.com


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Glad to have the peace of mind now...
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