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09-30-2013, 09:30 PM | #133 | |||
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It will be a few days till I get the info for all the bearing shells put together but here is a funny one. We were gathered around at work today looking at the 702/703 bearings and right off the bat one of the guys started to laugh, I asked what he though and he said a few years ago when he was working for a competing team they tried the "lead-free" bearings and they lost "blew-up" almost every engine they were installed in, and remember our engines are north of 100k each so blowing one up is not a fun idea.
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Last edited by kawasaki00; 09-30-2013 at 09:43 PM.. |
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09-30-2013, 09:41 PM | #134 | |
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So, along with BMLVR there are many that would never even put it together if they knew it was that tight to start with. We are not tooting our own horn, but the guys talking about clearance know what they are talking about. If we didn't know we would be out of a job.
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09-30-2013, 09:44 PM | #135 | |
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The PLX gauge has a linear voltage output. I'm not sure how linear it is, but if it's decently linear, then it will work. I can hook the PLX voltage output to a vBox analog input box. The vBox analog box connects via private CAN bus to my Video vBox. The Video vBox has a direct engine CAN bus connection, and I know how to get tons of engine data, including RPM...but not oil pressure. So the idea is to use the 10Hz data logging of the Video vBox with it's own analog input, connected to the PLX analog voltage output. It will log oil pressure, gear ratio, oil temp, water temp, RPM at 10Hz that way. |
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09-30-2013, 09:49 PM | #136 | |
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09-30-2013, 10:54 PM | #137 |
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More bearing photos
S65, 24000 Miles, Naturally Aspirated, 2009 More Photos
Category: 06-Med-Heavy Description: No other details given. S65, 72000 Miles, Supercharged, 2008 More Photos Category: 06-Med-Heavy Description: Owner opted for rod bearing replacement at 72000 Miles during Supercharger Upgrade. S65, 90000 Miles, Supercharged, 2008 More Photos Category: 06-Moderate Description: Owner opted for rod bearing replacement at 90000 Miles during Supercharger Upgrade. 1000 Miles later, oil line burst and motor suffered severe, but non-fatal damage. |
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09-30-2013, 11:57 PM | #138 |
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It seems they are getting the maximum life out of their bearings. I really want to buy one of these cars, but it feels like the e46 VANOS issues all over again :/
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10-01-2013, 03:23 AM | #139 |
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So does anyone have a reasonable explanation as to why this 'issue' is virtually unheard of in the UK?
We have different fuel ratings but that's the only difference as far as I know. It also seems odd when you type 'is the s65 (M3 engine) one of the best from BMW?' Into google. |
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10-01-2013, 06:55 AM | #140 | |
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10-01-2013, 10:22 AM | #141 | |
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I am quite sure the reason why not as many issues are cropping up i the UK is because there are way fewer M3's on the road than the US! What could possibly be different in the UK to change this issue? Be honest when you answer! Jamie |
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10-01-2013, 12:45 PM | #142 | |
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Now I realise that you work at a place that assembles 'big ole diesels', but the S65 ain't no earthmover. PG and Kawasaki amongst others have a far more open minded and polite approach to finding out what's going on without the egotistical comments. There are many reasons why this might be happening and being blinkered about clearance isn't going to solve it. You may well be correct in which case I will take my hat off to you, but without exploring other avenues we might as well go home. In answer to the question, there are over 6,000 S65s in the UK and I haven't heard of any with rod bearing problems. That's not to say there aren't any, but it's a small percentage if there are. |
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10-01-2013, 02:20 PM | #143 |
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Spoke to my connection at BMW USA today to try and help out with this Wiki.
I have a set of the top and bottom bearing shells being delivered. I will have a full set of this bearing set this month. Part #'s: 11 24 7 838 090 Rod Bearing Red 11 24 7 838 091 Rod Bearing Blue
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10-01-2013, 03:00 PM | #145 | |
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http://www.m3post.com/forums/showpos...4&postcount=18 I'll clean this up tonight. There have apparently been three different S65 crankshafts, and two sets of connecting rods. Maybe somebody with better BMW connections (hint, hint, Tom@EAS) can fill in the blanks. You will be surprised, I even found +.001 bearings and they are currently available! Since I posted this, I ordered and received samples of each of these rod bearings including the oversized bearings. Yesterday, I measured and photographed all of the rod bearings. Rod Bearings: 11 24 7 838 089 Blue, 53.000 mm, +0.000 mm, 0.07890" Thick, Ended 11 24 7 841 703 Blue, 53.000 mm, +0.000 mm, 0.07890" Thick, Replacement for 089 bearing 11 24 7 838 091 Blue, 52.750 mm, +0.250 mm, 0.08370" Thick, Currently available 11 24 7 838 088 Red, 53.000 mm, +0.000 mm, 0.07875" Thick, Ended 11 24 7 841 702 Red, 53.000 mm, +0.000 mm, 0.07875" Thick, Replacement for 088 bearing 11 24 7 838 090 Red, 52.750 mm, +0.250 mm, 0.08370" Thick, Currently available Here's a photo of the old and new bearings side-by-side with part numbers shown. As seen in the photo, the bearing surfaces are quite different. |
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10-01-2013, 05:19 PM | #146 | |
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I thought of throwing it out here amongst everything else that's going on. I have sent the oil for analysis and should have it sometime today.
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10-01-2013, 06:34 PM | #147 | |
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Thank you. I must have missed your post in that thread. Did you find any chance to assemble the "over-sized" 90 & 91 bearing into a factory rod assembly, torque the bolts and measure the clearance? As for your other post about oil pressure, the car will be going to the track October 11th with 0W-40 Mobil 1. I can take the BMW ICOM with me and see if I can pull oil pressure reliably. Here is some data that I pulled out. This is directly from BMW.
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10-01-2013, 09:46 PM | #148 |
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So with the journal clearance issues, we basically have to do a rebuild at some point?
Someone brave should drop a flat plane crank in just to hear what it'll sound like. .
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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10-02-2013, 06:33 PM | #149 | |
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Here is a little teaser pic of a rod bearing I have been working on...I have multiple bearings that I am hardness testing and doing some processes that we do to our race bearings.
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10-02-2013, 07:22 PM | #150 | |
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Here is the report from my oil analysis. http://www.m3post.com/forums/showpos...&postcount=115
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10-02-2013, 09:13 PM | #152 |
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Rod Bearings:
11 24 7 838 089 Blue, 53.000 mm, +0.000 mm, 0.07890" Thick, Ended 11 24 7 841 703 Blue, 53.000 mm, +0.000 mm, 0.07890" Thick, Replacement for 089 bearing 11 24 7 838 091 Blue, 52.750 mm, +0.250 mm, 0.08370" Thick, Currently available 11 24 7 838 088 Red, 53.000 mm, +0.000 mm, 0.07875" Thick, Ended 11 24 7 841 702 Red, 53.000 mm, +0.000 mm, 0.07875" Thick, Replacement for 088 bearing 11 24 7 838 090 Red, 52.750 mm, +0.250 mm, 0.08370" Thick, Currently available Do these above changes in bearing thickness mean that late model engines will likely experience less possible failures? |
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10-02-2013, 09:23 PM | #153 | |
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10-03-2013, 09:02 AM | #154 | |
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