Rod Bearing Showcase Thread

[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

[DropTopKingM3]

About to have mine done. VAC coated rod bearings with extra clearance and ARP bolts. I also got the oil pump upgrade kit.

Will post pics of the old bearings.

[hemi6]

198K, 2004, no copper showing but the "spring" was gone in several suggesting detonation pounded them at some point. Not bad at all and probably could have gone another 60k.

[cfdfireman1]

2006 M3 62K sure looks like it was time, no thanks to Blackstone it has been done.

blackstone62k.pdf

[Zekarus]

changed them in fabruary. 120k miles. oil analysis was good. so i won't do an oil analysis again. btw thats km on the analysis. just changing the oil a lot and will change them when I feel I need to.

[JamesSJ1]

2006, first time replacement at 91k miles. Blackstone was showing relatively high levels of copper all the time, but I didn't like the increase of all three lead, copper and iron in the last report. OCI ~7500 miles, didn't do Blackstone every time. Planned to do it around 100k miles, but used the downtime working from home and not needing to drive to get it done.

[M3mike]

I need to replace rod bearings..

[CrisSilberGrau]

Done at 121k miles, no record of them being done before.

Pics are in order from bank 1 to 6.

[mrgizmo04]

2006 - 115k mi

#2 was the worst. Not sure the blackstone matches the bearings?

Definitely glad I got this done and didn’t delay.

Those are surprisingly low numbers on the report for a 13k mile oil interval and the look of the shells...

Have you tried sending your pics of the shells back to Blackstone to get their take on "everything looks great".

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[8000RPM]

2006 - 115k mi

#2 was the worst. Not sure the blackstone matches the bearings?

Definitely glad I got this done and didn’t delay.

[ELEM3NT]

2005, 99k. Looks like they were getting pretty worn. Visible copper on several.

[Robert's_BMW]

2004 with 138800 miles on the clock, last 20,000 miles were AA supercharged. Just changed the headgasket a few weeks ago and figured I might as well do everything (also my last Blackstone was showing elevated Iron, Copper, Lead. Replaced with ACL Race bearings and OE Bolts. #2 Rod was definitely the worst showing copper, the rest were showing significant wear.

[bimmer]

March 2004 build. Original bearings AFAIK with 150,000 miles. Replaced with VAC bearings and ARP rod bolts. Was expecting much worse at 150K!