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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, 01:34:56 AM   #1
EricSMG
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Default Blackstone results not good

87k miles, second owner, average ~6k mile oil change internal its entire life. Lots of redlining, but also lots of super short drives.

Iron: 24 (10 avg)
Copper: 36 (8 avg)
Lead: 49 (5 avg)

Blackstone is concerned. They recommend checking again at 4k miles.

Is this a "stop driving immediately and have the rod bearings replaced" scenario?

Any input welcomed.

Thanks

Edit: motor runs like a raped ape. Definitely on the "strong" side of the spectrum - this is my 5th 46M and it's a fast one. Also zero funky noises ever, cold, hot, never.
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Last edited by EricSMG; Thu, Jun-14-2018 at 02:00:05 AM.
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Old Thu, Jun-14-2018, 01:55:32 AM   #2
///M Dream
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Default Re: Blackstone results not good

Replace them. Either way you know they’re coming up. Better safe
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Old Thu, Jun-14-2018, 01:56:41 AM   #3
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Default Blackstone results not good

Quote:
Originally Posted by EricSMG View Post
87k miles, second owner, average ~6k mile oil change internal its entire life. Lots of redlining, but also lots of super short drives.

Iron: 24 (10 avg)
Copper: 36 (8 avg)
Lead: 49 (5 avg)

Blackstone is concerned. They recommend checking again at 4k miles.

Is this a "stop driving immediately and have the rod bearings replaced" scenario?

Any input welcomed.

Thanks


My experience with having high amounts of lead and copper was really odd. I did a couple tests and it never got better, so I had the rod bearings replaced. After taking a look at the old bearings, there really wasn’t much damage at all, nothing like any pictures you see. It kinda had me lost faith in taking a oil analysis.
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Last edited by Good; Thu, Jun-14-2018 at 05:45:15 AM.
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Old Thu, Jun-14-2018, 02:13:22 AM   #4
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Default Re: Blackstone results not good

your rod bearings are going, get them taken care of in the near future. i don't know its a stop driving immediately but i wouldn't be bringing it to track events or hard redlineing it over and over again until this is sorted.
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Old Thu, Jun-14-2018, 04:31:49 AM   #5
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Default Re: Blackstone results not good

Is this your first analysis or have you done them before? If done before, what were the numbers then?

I honestly don't think this is a stop driving immediately scenario, but if the metals are similar in the next one after 4K miles, I would replace them. Just for peace of mind. Its a $1500 vs new engine.

You mention a lot of short drives - how was your oil viscosity and flashpoint? Was it good/adequate for 10w60 after 6K? Any fuel in the sample? Which oil did you run?
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Old Thu, Jun-14-2018, 05:27:53 AM   #6
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Default Re: Blackstone results not good

It's tough Eric because we've been taught from early on to do the rod bearings, especially with a report like that. Like Good said though, I've seen and heard of a few instances where reports were bad, but there was plenty life yet.
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Old Thu, Jun-14-2018, 05:43:20 AM   #7
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Default Re: Blackstone results not good

I think it's obvious that you need to do the bearings man.
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Old Thu, Jun-14-2018, 06:31:49 AM   #8
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Default Re: Blackstone results not good

Just do the bearings bud and get them out of the way. Better safe than sorry.
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Old Thu, Jun-14-2018, 06:46:49 AM   #9
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Default Re: Blackstone results not good

Wanted to add that you'd really want to see a pattern before making assumptions. Ideally.
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Bilstein HD B6 + GroundControl/Eibach 325/550lb + GC "tall" RSMs · Hotchkis front sway (med) · rear strut bar · TMS camber & subframe plates · Eibach alu rear camber arms · RE trans mounts · AKG poly subf/diff 95a · SDW RTAB · OE weighted ///M knob + ZHP alcantara boot + UUC DSSR + delrin bushing

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Old Thu, Jun-14-2018, 07:00:18 AM   #10
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Default Re: Blackstone results not good

Yeah tough to say, report could be bad. If you take it "easy" next 4k miles before the next oil analysis, I would expect the numbers to come down by nature of taking it easier and shorter interval, so that report would not give me much piece of mind. At your mileage (87k), I'd gear up for doing them.

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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)