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05-24-2019, 03:40 PM | #45 |
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$1000 in parts. So $1900 in labor. It’s an 8 hour job typically. A mechanic who has done a bunch of them might be able to do it in 6-7 hours. A DIYer for the first time could take 12. The OP is paying about $225 an hour, which seems high to me. I live in NH but don’t know shop rates because I can’t afford them. I DIY.
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05-24-2019, 03:58 PM | #46 | |
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Might be more with oil pan Gasket + oil and filter? I thought it was expensive myself. I had another shop quote $2000, but they wanted to do leak down test, and compression test before doing the bearings. Which is probably an extra $500.. I’m okay with the price if I don’t need a fkn rebuild. |
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05-24-2019, 04:52 PM | #47 |
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definitely do the motor mounts as well.
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05-24-2019, 05:02 PM | #49 | |
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Gasket is not expensive. Oil and filter is not terrible either. I needed a bottle of PS fluid and new washers for the banjo bolts - but that is not expensive either. I assume you will need new motor mounts and bolts, but that is also not crazy $$. Typical shop rate ~$120/hr where I was living. It took me about 12-14 hours on jack stands in my garage. Savings in labor paid for my 2 new digital torque wrenches and all of the other little tools I bought. With a hoist and experience, 8 hours is reasonable. Quick look: BE Bearings, ARP bolts and 2 motor mounts = $970 Gasket = $30 Oil and filter = $133 PS Fluid = $16 Spare pan bolts and other consumables = $30 Oil pickup gaskets = $12 Shop supplies = $30 Total parts: ~$1,221 plus any shipping 8 hours labor ~$1,000 So, ~$2,221 plus shop the shop's markup on parts. $2,500 seems about the maximum that you should have to pay for this service (assuming $125/hr labor rate). Cheers,
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05-25-2019, 01:59 PM | #50 | |
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ACL own specs in mm Shaft 51.975 - 51.991. Housing 56.000 - 56.013. HX Shell 1.977 - 1.985 Min: 56.000 – 51.991 – 2x1.985 = 0.039mm / 0.00153 inch Max: 56.013 – 51.975 – 2x1.977 = 0.084mm / 0.00331 inch Hence FWIW ACL Nominal clearance would end up on (0.084+0.039)/2 = 0.0615mm / 0.00242 inch i.e. fairly close to Clevite's rule of thumb, 0.0025 inch for our 2 inch crank diameter. BE are using their own tighter shaft spec based on measured cranks. Using this ACL HX would tighten up to 0.0413 – 0.0805mm, with Nominal 0.06085mm / 0.0024 inch. - Where does the 0.061 – 0.084mm / 0.0024 – 0.0033 inch come from? BE clearance, according to their web page numbers again using a tigher shaft spec: Min clearance: 56.000 – 51.9887 – 2x1.9939 = 0.0234mm Max clearance: 56.013 – 51.9786 – 2x1.9812 = 0.0721mm Nominal: (0.0721 + 0.00234)/2 = 0.0477 / 0.00188 inch BE’s measured/binned parts clearance (I’m assuming (1.9812+1.9939)/2 = 1.9875) Min clearance: 56.000 – 51.9887 – 2x1.9875 = 0.0363mm / 0.00143 inch Max clearance: 56.013 – 51.9786 – 2x1.9875 = 0.0594mm / 0.00233 inch Nominal: (0.0594 + 0.0363)/2 = 0.04785mm / 0.00188 inch Don’t get me wrong, BE’s binning to narrow the clearance spec is obviously great but: - Where does the 0.0457 – 0.0711mm / 0.0018 – 0.0028 inch come from? 088/089 vs 702/703 You can rund the calculations your self, using BE’s measured shell numbers will end up with: 088/089: 0.0057 – 0.0365mm 702/703: 0.0133 – 0.039mm. (i.e. mentioned “tad” more open, and turns out to follow BMW’s own 0.010 – 0.035 quite well) Cheers |
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05-25-2019, 03:29 PM | #51 | |
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Since in a perfect world rod bearings should be sized and measured on a bench while assembling an engine that's what engine builders typically do if the parts and tools to do so are available. I trust the measurements of an actual set of bearings from a trusted engine builder such as rcollins more than a manufacturer specs. Esp over BMW. I'd measure them myself if I had the tools to do so accurately. |
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05-27-2019, 10:12 AM | #52 |
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I’ve looked at a lot of posts regarding the rod bearing wear, and failure rate.
The crank seems to hold up pretty well for the wear, and tear, on most bearings. Even the bearings I’ve seen that are mostly copper have not scored the crank.. This seems like good news. |
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05-27-2019, 10:40 AM | #53 |
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My guess is Turner didn't want to slap bearings on an engine with that kind of mileage and tbh if/when my engine hits that kind of mileage I would be obliged to do a full rebuild too. Turner wouldn't want you coming back in a few k miles with other serious problems blaming it on their work. It's not worth it to them... $10k for a full rebuild isn't terrible, especially if it's done by Turner, the last thing you want to do is f the block on an S65..
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05-27-2019, 02:52 PM | #54 | |
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05-29-2019, 10:46 PM | #55 |
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The problem here are that comments like that are most likely incorrect (false). We're a vendor who sells them, and we don't do it. I haven't seen any other vendor do it either. I don't think you'll find any other vendors in the last three years doing it either. But we definitely appreciate people who say this, create lots of debate and traffic in these threads, and help us sell bearings whether they know it or not. We appreciate your support.
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05-30-2019, 11:21 PM | #56 | |
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If the bearing does not actually spin in the rod, there is a good chance the crank will be just fine even if the bearings are quite bad.
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05-31-2019, 04:11 PM | #57 |
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My 0.02 is don't bother with the Rod bearings. If the rod bearings were going to go, it would have went already. To spend $3,000 to mitigate a risk with less than 5% probability on a car that's worth just over $10,000 is hard to justify. Enjoy the car!
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05-31-2019, 04:14 PM | #58 |
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Do not listen to this fool's logic that "if they haven't gone yet, you are safe" plus the added "5%" completely made up statistic. The answer might not be to get the bearings done (ex/ sell the car and go lower mileage or something), however, this idiotic logic is false.
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05-31-2019, 08:46 PM | #59 | |
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05-31-2019, 08:52 PM | #60 | ||
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05-31-2019, 09:05 PM | #61 |
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We are passionate about our rod bearings!
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05-31-2019, 09:14 PM | #62 | ||
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06-01-2019, 03:06 PM | #63 |
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06-03-2019, 02:58 PM | #64 |
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I like to think of rod bearings like climate change: it will impact everyone but a lot of individuals won't actually acknowledge it's real until it effects them directly.
If you can get out ahead of the issue and do something preventatively, you should. |
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06-03-2019, 03:34 PM | #65 |
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um.... climate change is not real, and nobody has been affected by it, because it's not real. Rod bearings have failed so many times that it's clearly not just a hoax. Weekly, just on this forum, we see posts about spun bearings grenading engines... low and higher mileage. All sorts of conditions and cars. So your analogy is terrible.
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06-03-2019, 04:14 PM | #66 |
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OMG we went from rod bearing mania to global warming arguments. Man has this gone off track.
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