Rod Bearing Showcase Thread

[stephen]

Saw these posted on Reddit. 170k mile rod bearings.

https://www.reddit.com/r/E46M3/comments/oj40mm/170000_miles_on_original_rod_bearings/

[sapote]

Had Rod Bearing Recall done at 15,509 and these done at 208,426. So 193,000 on these…

Too dark to tell if copper shown or not, but they seem to be in good shape for 193K miles.
Why changed now and not when it's around 100K?

[old///MFanatic]

Had Rod Bearing Recall done at 15,509 and these done at 208,426. So 193,000 on these…

[sapote]

Had the rod bearing recall done around 25k and then these done at 145k. Mostly highway miles, but still, they were ready to change out. Glad i did it now and didnt wait any longer. Blackstone wasnt showing much copper

Low resolution pic -- I couldn't see much of detail.

[sapote]

Don’t know when the previous owner changed them. But glad I got it done.

Not too bad at all.

[sapote]

Funny, my oil analysis consistently looked fine. Blackstone's report stated "Your original rod bearings still look good with lead (the primary bearing element) at a perfectly average 6 ppm". I'm glad I replaced them anyway.

I agree that the oil analysis is matching with the bearings condition. At 133K miles they looks fine with #3 just showing copper. You could easily get another 5K but it's good time to change.

[cobra]

Interesting to see the lack of correlation between mileage and wear...

Also the lack of correlation between blackstone oil reports and wear...

[Andrew 06M3Cab]

216,500 km (133,000 miles). Top of number #3 was worst - copper just starting to show through. Funny, my oil analysis consistently looked fine. Blackstone's report stated "Your original rod bearings still look good with lead (the primary bearing element) at a perfectly average 6 ppm". I'm glad I replaced them anyway.

[Mattn1192]

The 160k miles. Don’t know when the previous owner changed them. But glad I got it done.

[Kcalhoun27]

Had the rod bearing recall done around 25k and then these done at 145k. Mostly highway miles, but still, they were ready to change out. Glad i did it now and didnt wait any longer. Blackstone wasnt showing much copper

[Nuclear Rabbit]

2003.1 120k miles, cyl 1 at top
Unknown maintenance history (recently acquired)

[m3nt0s]

Bearings changed at 97,658 based on the trend in lead in multiple reports.

[M3Bob]

175k (ish...have to pull the records).


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[Deen HK]

Records show the recall was done at around 11k, these were replaced at 164k. Replaced with ACL bearings.

[cbean]

My rod bearings at 80K . . .

Replaced with OE, WPC & OEM bolts



Oil Change 1200 miles after rod bearing job . . . Blackstone analysis