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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Jun-14-2018, 05:52:10 PM   #21
Obioban
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Default Re: Blackstone results not good

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Originally Posted by Zzyzx85 View Post
I had a similar situation where 3 consecutive UOA was showing double the average copper, but little lead. I (and others on here) thought it had worn through the lead and was now in the copper.

I elected to do the rod bearings anyway, only to find the bearings were in perfect condition.

Do I regret doing it? No, because it gave me a peace of mind knowing the rod bearings being done. It also allowed me to take care of other things as well. It's expensive to do something but in my eyes, you can't be too cautious when it comes to the engine.
How have your numbers been since the replacement?

Trying to think of other places in the engine where copper could be coming from
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Old Thu, Jun-14-2018, 06:40:54 PM   #22
Zzyzx85
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Default Re: Blackstone results not good

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Originally Posted by Obioban View Post
How have your numbers been since the replacement?

Trying to think of other places in the engine where copper could be coming from
Not yet. I'm still on the post-job oil. I plan on taking my next sample from the one after.

Could it be the mains? I'm hoping it isn't but this is a high mileage car (200k+). Always been on Castrol TWS.
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Old Thu, Jun-14-2018, 07:07:59 PM   #23
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Default Re: Blackstone results not good

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Originally Posted by TheSt|G View Post
What year? Only the early ones leave copper/lead when the bearings are going.
Does this mean later models, or a WPC treated set that was bought today will not show high amounts of copper/lead when they're going? If that's true, is there anything else in an oil analysis that shows clues of bearing wear?
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Old Thu, Jun-14-2018, 07:14:15 PM   #24
Obioban
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Default Re: Blackstone results not good

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Originally Posted by E30User View Post
Does this mean later models, or a WPC treated set that was bought today will not show high amounts of copper/lead when they're going? If that's true, is there anything else in an oil analysis that shows clues of bearing wear?
He's talking about S65 bearings.

AFAIK, all OE S54 bearings are still lead/copper.
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Old Thu, Jun-14-2018, 07:23:23 PM   #25
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Default Re: Blackstone results not good

I had a similar case of having high copper and lead. My bearings were not as worn as the uoa depicted it to be when I replaced them. But the peace of mind was well worth it. I can dig up a thread I started to try and document wear numbers with bearing conditions. Or should I say how wear numbers do not always represent bearing condition.
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Old Thu, Jun-14-2018, 07:27:57 PM   #26
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Default Re: Blackstone results not good

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Originally Posted by Obioban View Post
How have your numbers been since the replacement?

Trying to think of other places in the engine where copper could be coming from
Ive completed two oil changes since replacing my rod bearings. Lead particle count dropped to 0 ppm but copper has remained around 7-8 ppm.
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Old Thu, Jun-14-2018, 07:31:51 PM   #27
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Default Re: Blackstone results not good

Valve guides or wrist pin bushings wear?
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Old Thu, Jun-14-2018, 10:20:35 PM   #28
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Default Re: Blackstone results not good

Just got my baseline report back as well reflecting not-so-good numbers. Not as bad as some others. They told me to listen for knocking and follow up in 3,000 miles This was my first oil change with the car so hopefully the next report will reflect something different.
Copper: 19
Lead: 36
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Old Thu, Jun-14-2018, 11:15:58 PM   #29
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Default Re: Blackstone results not good

I just sent out my 2nd oil change with my car @ 98,600 miles.

Lead: 38

Blackstone said to listen for knocking/low oil pressure and check back in 5,000 miles. I added LiquiMoly mos2 for the time being.
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Old Thu, Jun-14-2018, 11:32:22 PM   #30
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Default Re: Blackstone results not good

Hmm, I wonder if Blackstone has changed their testing method or something. All of a sudden, we have a lot of reports with bad numbers on lead and copper.
S54 is really not all that known for bearing wear aside from the early cars.
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Discussing Blackstone results not good in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)