Rod Bearing Showcase Thread

[bagger]

I'm the second owner and don't push too hard. I don't know the original owner, but I did look him up and it seemed to also have been "adult owned" during his time if I had to guess. I'm just glad I did them. Slept like a baby last night.

[sapote]

"2004 - here are mine at ~130k miles. Cylinder 6 showing pretty significant wear."
"2004 - 69k'ish miles. Previous history unknown - probably original. "

wow, 130K vs 69K: only a little more wear on the 130K. I'm interested to know if the 69K car had been driven hard with these mileage.

[gabylonfive]

2004 - here are mine at ~130k miles. Cylinder 6 showing pretty significant wear.

[bagger]

2004 - 69k'ish miles. Previous history unknown - probably original.

[Slideways]

Typical amount of wear at 125k, so those are most likely the original bearings for an 05.

[Notan_S54]

Looks very good for 125K miles. Are you sure these are original?

I am not sure if these are the original or if they have been replaced. I do know however, the previous owner took VERY good care of this M3 before I purchased it in 2021. So I wouldn't be surprised if the rod bearings were done in their ownership. Car now has ACL coated bearings and ARP hardware so I'm happy I now have the peace of mind it's been done and that previous owner did their part to keep the car good too!

[sapote]

05 car with 125k miles!
Daily and mountain spirited driving on the car.

Looks very good for 125K miles. Are you sure these are original?

[Notan_S54]

My contribution to the thread. 05 car with 125k miles!
Daily and mountain spirited driving on the car.

[sapote]

This was from a few years back, but for the records … about 109k on engine. Engine is from an '06 model year and presumably had original bearings. I put the previous 55k miles on it including maybe 6 track days

OH also under my ownership I drove this thing through cold Chicago winters, those super cold mornings didn’t help much I’m sure

right side halves are the top?
Not bad for 109K with some track days. This is good to have in the record.

[BTB]

This was from a few years back, but for the records … about 109k on engine. Engine is from an '06 model year and presumably had original bearings. I put the previous 55k miles on it including maybe 6 track days

OH also under my ownership I drove this thing through cold Chicago winters, those super cold mornings didn’t help much I’m sure

[Go3go]

Good wear patterns; Could run another 30K miles.
How often redline? Track? Hard acceleration?

Good to know! I just got the car last year so I can’t speak to the previous owner’s driving habits. I’ve put about 6k miles on it but they’ve been pretty tame since the car needed quite a bit of preventative maintenance (vanos, cooling system, bunch of bushings, diff reseal etc). No track time, maybe a couple redline pulls a week (which will change now that I’ve got the car more sorted). Otherwise just freeway cruising to work at 3k.

[sapote]

Unknown mileage on bearings, 95k mile odometer 2001 spec.

Must be a second set bearings as they still have plenty of life.

[bavarian3]

Unknown mileage on bearings, 95k mile odometer 2001 spec.

[sapote]

Out of my 2003.5 6 speed, 75k miles. Cylinders 1-6 left to right, uppers on the top row. Not terrible but glad I went ahead and did them.

Good wear patterns; Could run another 30K miles.
How often redline? Track? Hard acceleration?

[Go3go]

Out of my 2003.5 6 speed, 75k miles. Cylinders 1-6 left to right, uppers on the top row. Not terrible but glad I went ahead and did them.