Official S65 Rod Bearing Condition Example Thread

[Kelse92]

Originally Posted by deansbimmer

A couple from the last week.

The 92k 2011 set had the 088/089 bearings and some wiping evidence towards the rear journals that we don't usually see on the lead bearings which was interesting.

Curious about this car. To my knowledge the (or a) previous owner had a new motor installed due to a prior failure and this one only had 45k-ish miles on it... Interesting to see the wear knowing that about the car.

[Lito335]

2013 3rd owner 39,984 got them done today.

[Staszek]

Originally Posted by Lito335

Attachment 2281425
2013 3rd owner 39,984 got them done today.

What was the report, looks worn.

[R-35]

Originally Posted by Lito335

Attachment 2281425
2013 3rd owner 39,984 got them done today.

Interesting, I recently had rod bearings replaced on a 2011 with 75k miles (5 owners) and they look a lot less worn than that.....goes to show that having low mileage doesn't guarantee that the rod bearings will be in better shape. I'll post pictures soon.

[tom @ eas]

09 M3 DCT @ 93,287mi.

[GoodTime]

Oh, you hate to see that.

What was the state of the crank on that car given the cyl-6 damage?

[tom @ eas]

Originally Posted by GoodTime

Oh, you hate to see that.

What was the state of the crank on that car given the cyl-6 damage?

There were very light markings on the crank, but surprisingly not as bad as compared to the bearing.

[SoCalRPM]

Originally Posted by tom @ eas

09 M3 DCT @ 93,287mi.

[IMG]https://live.staticflickr.com/65535/...def8f93c_b.jpg[/IMG]

[IMG]https://live.staticflickr.com/65535/...e543a356_b.jpg[/IMG]

[IMG]https://live.staticflickr.com/65535/...43e9cbfc_b.jpg[/IMG]

[jvictormp]

Man!! That was scary!!

Seems like a miracle that nothing bad happened.

Isn't it possible that some particles went to the mains?

[RedScytheM3]

Originally Posted by tom @ eas

09 M3 DCT @ 93,287mi.

[IMG]https://live.staticflickr.com/65535/...def8f93c_b.jpg[/IMG]

[IMG]https://live.staticflickr.com/65535/...e543a356_b.jpg[/IMG]

[IMG]https://live.staticflickr.com/65535/...43e9cbfc_b.jpg[/IMG]

This post should have come with a warning! That bearing looks like dog 💩!

[Scharbag]

Here is a good video about engine building tools vs plastigauge. I remember a lot of discussion here regarding this topic so here is some more info.

Cheers,

[x Spades x]

Any change of getting a BE Rod Bearing Group Buy going?

[Bubbles]

Originally Posted by x Spades x

Any change of getting a BE Rod Bearing Group Buy going?

BE sells out each batch, I wouldn’t expect a group buy option.

[pbonsalb]

That is my thought as well. Seller has no need to offer a discount to sell product. If you personally wanted to order 100 sets, you could probably get a discount since they would all be sent in one package to the same place.

[DRLane]

Originally Posted by pbonsalb

That is my thought as well. Seller has no need to offer a discount to sell product. If you personally wanted to order 100 sets, you could probably get a discount since they would all be sent in one package to the same place.

We've stumbled upon wholesale distribution.

[Hondaman23]

Originally Posted by jvictormp

Man!! That was scary!!

Seems like a miracle that nothing bad happened.

Isn't it possible that some particles went to the mains?

The connecting rod bearing is the last pressurized oil contact point before it is slung into the pan, so no! Main rods lead to con rods, not the other way around. Ever get a black stone report over the last two oil changes?

[JPetro10]

Mannn, I CAN'T WAIT to see how my newly acquired 172K...never been changed rod bearings look! After buying it, it's sitting until they're done. TBH, I'm thinking of having it towed to the shop just in case, lol. That'd be some luck, 172K same bearings, 12 mile drive to the shop, one of them goes, lol!

Btw, we've ordered WPC treated bearings + ARP. I wanted BE but the wait time from what we're seeing was July-September. Do those bearings generally have such a long wait time to be produced?

[jvictormp]

Originally Posted by JPetro10

Mannn, I CAN'T WAIT to see how my newly acquired 172K...never been changed rod bearings look! After buying it, it's sitting until they're done. TBH, I'm thinking of having it towed to the shop just in case, lol. That'd be some luck, 172K same bearings, 12 mile drive to the shop, one of them goes, lol!

Btw, we've ordered WPC treated bearings + ARP. I wanted BE but the wait time from what we're seeing was July-September. Do those bearings generally have such a long wait time to be produced?

The long wait time is a problem we are facing for some time, I don't know why. Did the demand increase so much? Or the production decreased?

Anyway, when my bearings arrived, I locked the car in garage and only moved it when the bearings were done.

We only accept the risk when the bearings money is in our pocket. Once it's out, you spent the money, now there's not a single possible gain in the german lottery.

[pbonsalb]

With the WPC treated stock, base the next bearing change on the condition of the bearings you take out. In your case that will likely be a while given the miles you have on yours.

[JPetro10]

Originally Posted by jvictormp

The long wait time is a problem we are facing for some time, I don't know why. Did the demand increase so much? Or the production decreased?

Anyway, when my bearings arrived, I locked the car in garage and only moved it when the bearings were done.

We only accept the risk when the bearings money is in our pocket. Once it's out, you spent the money, now there's not a single possible gain in the german lottery.

So funny, I'm doing that exact same thing. In fact, I wanted to drive my S54 swapped E36 today and had to move the E92...I honestly thought about pushing it, lol.

Originally Posted by pbonsalb

With the WPC treated stock, base the next bearing change on the condition of the bearings you take out. In your case that will likely be a while given the miles you have on yours.

Good idea!

I'm also wondering if there's any reason to get the oil analysis done since I'm for sure doing the RB. Would it be beneficial for other aspects of the engine? I've never had one done and it intrigues me but I'm not sure if it necessary.

[IamFODI]

Originally Posted by JPetro10

I'm also wondering if there's any reason to get the oil analysis done since I'm for sure doing the RB. Would it be beneficial for other aspects of the engine? I've never had one done and it intrigues me but I'm not sure if it necessary.

In a car engine driven by a human being in the real world, "other aspects of the engine" are what oil analysis is actually good for anyway.

Contrary to how it's commonly used, oil analysis really sucks for tracking wear, especially in a one-off test with no prior history. What it's good for is tracking contamination and the condition of the oil itself. Those can alert you to problems with how the engine is running, whether you need to shorten your oil change intervals, etc. It's a great tool for those purposes, especially if you want to be proactive about maintenance (i.e. replace parts before they die or trigger a code).

Strong recommendation: Hit up Polaris Labs and get their Advanced Engine Plus analysis package. It's better and cheaper than Blackstone's testing. Or, if you really want to go deep (and feel like paying for it), go with Dyson Analysis.

After you change your rod bearings, you can start doing oil analysis at every oil change (this is where Polaris's bulk orders come in handy). That'll greatly improve its utility. As an added bonus, it'll also be marginally less useless for tracking wear.

[pbonsalb]

I have never done an oil analysis on my 08M3 and don’t plan to. I did change the rod bearings in 2014 at 60k. No extra clearance bearings were available then so I used WPC treated stock. Since my original bearings had wear patches though not through to copper, but did show copper along the parting lines and a little down the sides from the parting lines, I plan to do them again at 120k or maybe before if I am looking for a project. If mine had shown pretty much no wear, I would have extended the interval and if they had shown copper in the centers I would have reduced the interval. Presently the plan is to use extra clearance bearings next time. Probably ACL since the price is reasonable and they are quality bearings.