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| 01-10-2021, 10:55 PM | #1981 | |
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| 01-10-2021, 11:30 PM | #1982 | |
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| 01-11-2021, 06:55 AM | #1983 | |||
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I can't fight the feeling I have from any BE representative or closely tied shop consistently throwing rocks at anyone having a critical look at BE and putting down competitive products. It's a bad look and is turning more people away than is being considered. Quote:
The last thread is from.. 2013. It's 2020, a single man business doesnt need a website to have an online presence. Schirmer doesn't even have one yet as an example, Slicer built his off instagram. Not a way to judge a business' credibility. |
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| 01-11-2021, 10:51 AM | #1984 | |
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Have seen zero actual data or testing from him other than anecdotal claims he makes. |
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| 01-11-2021, 11:46 AM | #1985 | |
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This post is one post that causes me to question his expertise. Stating that running a 5WXX oil will solve the issue is ludicrous. People running 0W40 have spun rod bearings. People running 10W60 have 200K miles on their stock bearings. The oil weight is not the root cause of this issue.
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Assimilator1877.00 FMLYSDN1254.00 |
| 01-11-2021, 12:29 PM | #1986 | |
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This post (and this thread in general) sums up Troy quite well it seems. People like him give me the heebeegeebees. To each their own, but I would not trust Troy to change my air filter, let alone touch my engine. As they say, if it quacks like a duck... As for the website, perhaps Troy should update his IG to remove the broken link... Anywhoo, have a great Monday.
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DRLane4387.50 |
| 01-11-2021, 01:38 PM | #1987 | ||
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To be fair to this words, you cut out the part where he says this: Quote:
This entire bearing conundrum is an example of a solution that's been incredibly mis-marketed by bearing manufacturers as they are used to selling directly to engine builders who usually measure cranks and bearings to match. Their products are now bought by end consumers and marketed on specs, when frankly, 99% of us don't have the hydrodynamic bearing knowledge to make an educated decision on this. None of the manufacturers have focused on the number 1 benefit for us all; will changing bearings protect my engine with certainty from spinning a rod due to bearing wear? There has been many theories and attempted causalities - yet none have offered the long term testing to prove this outside of anecdotal evidence of pulled BE, VAC, ACL and WPC coated bearings. Instead, we're left with oil and bearing vendors & installers bashing each other over what they feel works and doesn't, pulling out all the dirt I frankly don't care about to maximize their share of a highly profitable market. This should have been like buying insurance. I would have gladly paid more if BE had an installer network that would guarantee my engine wouldn't pop due to engine rod bearing wear, that's an incredible value proposition (the Dinan model)! But they don't - and installation error is a major component of failures with aftermarket bearings, if anything is be taken away from Troy's post and numerous other stories of failed aftermarket bearings. I have personally went with ACL & ARP bolts as my shop builds race engines and will measure bearings prior to installation - as should anyone do when replacing bearings. It made more sense, for me, when considering availability & pricing. (BE's website is down as I type this). My best recommendation for anyone reading this would be to speak to an engine builder, many will guarantee their work. Last edited by Epoustouflant; 01-11-2021 at 01:57 PM.. |
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| 01-11-2021, 02:27 PM | #1988 | |
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Clevite, King, ACL and Glyco all have shared their recommendations for minimum bearing clearance (0.001"/"). Following the recommendations of the bearing manufactures seems pretty reasonable to me. I do not have to be an expert in metallurgy to trust BMW's ridiculous torque specs for their factory rod bolts. Just like I do not have to be an expert to trust Clevite, King, ACL and Glyco for their clearance recommendations. BE has been very willing to provide warranty if the root cause of failure is a bad rod bearing. This, to my knowledge, has never been the case. And I am not quite sure what the point of measuring your shells is when you cannot measure the rods and crank without a full teardown. Does the shop have a go/no-go thickness target? If yes, what is it based on? Do they mix and match shells to ensure the target is met (like BE does)? If no, then what is the point? Cheers,
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| 01-11-2021, 03:06 PM | #1989 | ||
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BE's warranty matches Clevite, and the link you sent is an exceptional situation in which they required - you guessed it - proof that crankshaft journals and clearances were measured before bearing installation, either by bore gauges or Plastigage. Without these measurements and/or proof they occurred (detailed labor receipt, etc.), there can be no further discussion about warranty repair. That's 1 of 7 stringent requirements they asked for. There is no BE bearings warranty de facto. ----------------- Very few engine builders I discussed with, including Porsche Motorsport & Subaru Rally guys that are local to me, would install rod bearings without measuring them themselves. They will mix and match shells to achieve the proper clearance - this is the way it should be done. The point of individually measuring each bearing is to validate the manufacturing tolerances, which is exactly what BE does during the binning process when they receive the bearing from Clevite. BE's measurements of the ACL bearings essentially proved that point. Troy's point is actually critical to this discussion - installation error is a major cause of failure with aftermarket bearings. From my experience, not a single shop that I discussed with will warranty a job with bearings they have no experience with and need to rely on a small company for measurements & support. My point here is that I'm not just seeing the value in what BE is offering for professional installations as there now many reputable, long standing, less expensive alternatives with which engine builders are used to work and will put their name on the line for. As a clarification, there are no BE Bearings dealer listed for my region and this might be different to anyone reading this. I'd reiterate anyone looking to have their bearings changed to talk with local engine builders with experience - which was Troy's point you deemed irrelevant. Quote:
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| 01-11-2021, 04:08 PM | #1990 | |
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Troy's point is irrelevant. It is like saying "only go to a good dentist." It is implied when doing anything to the engine, including an oil change. As for your shop mixing and matching shells, that would be great if they did it like deansbimmer does. Unfortunately, to do it properly, you need to buy a great deal of bearing shells (hurray for statistics) AND have a very specific measurement tool. It is awesome if your shop has one but it is not a typical tool for most shops. You may not see value in a hand matched set of bearing shells. I do. To each their own. But enough of this, let's enjoy the S65.
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| 01-11-2021, 04:33 PM | #1991 | ||
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Feels like our gentleman's disagreement may provide some guidance to anyone reading 😁 |
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| 01-11-2021, 08:39 PM | #1992 |
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Bert was able to confirm through an intermediary on Facebook that these are indeed BE Bearings, he gave Bert pictures of the backs to confirm they were BE shells, dated April 2017. Bert also received photos of the original bearings before BE Bearings were installed. The original bearings show something is pretty wrong with the engine beforehand because the wear pattern is not normal, even for the S85 with little clearance. Bert sent the photos to his NASCAR friend, and was told it was likely the original shells were delaminated by 1) fuel dilution, 2) excessive heat, 3) coolant in the oil. The same source said it looked like the one BE shell shown suffered from the same fate.
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| 01-11-2021, 09:10 PM | #1993 | ||||
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| 01-13-2021, 12:01 PM | #1994 | ||
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I'm a qualified motor vehicle and a Suzuki (car) master tech, but does that have any relevance here? Whilst some of my postings is based on the above, most of it is from the bearing manufacturers literature which I've already linked a few pages back in my 'mega' post. You don't have to be practising in the field to read those. Quote:
And it isn't just a theory, go look at all the LCI bearings photos in this and autocoutre's thread, see if you can find one that's clearly worn through to copper. Their are some that are questionable, but not clearly worn through like a lot of the earlier bearings. They do better than the earlier bearings, but I still think they are wearing somewhat excessively.
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. |
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| 01-13-2021, 12:12 PM | #1995 | ||
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You missed out a couple of crucial words, I said never allow metal to metal contact when running. That means their is still contact on starting and stopping the engine, so some wear there. It's not just about the redline. It's also about bearing stresses, which has to do with bearing size, crank and rod metallurgy, stiffnesses, vibrations, etc. etc. Not to mention bearing type. Yep, agreed, I just didn't bother give the whole (or most) of the list .Go ahead and grab your pics, but let's be real about what they'll actually do for us. It'll show how bearings are supposed to wear ![]() I can see the oil grooves left just fine in those pictures, maybe it's your screen? Remember, when you sanded that bearing, it went silver before the copper showed. Wouldn't have happened if what you describe here were true. Yes that's true, but I was wondering on the more worn LCI bearings whether they had worn the babbitt layer more than the bearing I had. And perhaps thin enough to make it semi-translucent, hard to say without one of those bearings being sanded down. Good point on tin migration, do you remember where you read that? Quote:
Re tag, after typing @ a list should pop up of member names, maybe that didn't show?
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. Last edited by Assimilator1; 01-13-2021 at 12:20 PM.. |
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| 01-13-2021, 01:37 PM | #1996 | ||
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Gonna let this one go. I think I've made my point and don't care enough to risk (further) antagonizing you or anyone else.
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What you're seeing might be a result of the grooves being worn away in the discolored region, or it might be a result of the camera and/or image format not allowing resolution of the grooves when the rest of the bearing surface has been darkened. It needs to be shot with a much better camera / under better lighting conditions. ...Then it has to be demonstrated to be an issue worth worrying about, which apparently Glyco doesn't think is a given. Quote:
Also, here's a patent held by Federal-Mogul that describes a particular kind of tin migration as likely beneficial. To be clear, I'm not saying this is what's happening with 702/703 bearings. I only offered it as an example of a source of discoloration that doesn't necessarily suggest a critical issue. |
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| 01-14-2021, 11:49 AM | #1997 |
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Just had my bearings changed and while they look decent the peace of mind is well worth it. For context I've had my 2011 E92 for 8 years and acquired it with 9000km's originally. I've got it up to 105,000kms and always follow a strict warm up procedure. The oil is changed every 5000kms with dealer 10w60 (Castrol and now Shell). Given the care for the car I was expecting my bearings to be in good shape, but I'll let you be the judge.
Lots of discussion on what bearings to get I went with BE and BE/ARP bolts and had Rocco at RMP Motors in Toronto swap them out and change my worn out motor mounts. Cars running buttery smooth. |
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| 01-14-2021, 11:46 PM | #1998 |
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Do people replace the bearings with OEM ones? a reputable local shop was saying they do this type of job but they only use OEM parts.
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| 01-15-2021, 06:18 AM | #1999 | |
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Try asking them to install BE / ACL / VAC and you'll be replied to with "sure, with an extra hourly rate because you bring your own parts and no warranty on the job". Run. Last edited by Epoustouflant; 01-15-2021 at 09:26 AM.. |
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| 01-15-2021, 05:21 PM | #2000 |
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This is a telltale sign that the shop isn't familiar with this job or the rod bearing issue. Any shop can be reputable but still not a specialist on a particular platform.
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| 01-15-2021, 08:56 PM | #2001 | |
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| 01-15-2021, 10:03 PM | #2002 |
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2011 with ~59,300 miles. Getting BE bearings installed. Can finally drive the car a little more stress free!
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