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08-21-2020, 11:15 AM | #45 | |
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As for the mains, there is nothing you can see without a full tear-down due to the bed plate design. Cheers,
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08-21-2020, 12:19 PM | #46 | |
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08-21-2020, 04:36 PM | #47 | |
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It is good advice he is giving. The S65 is not an easy engine to work on and every part is pricey. Buy a used engine and then sell your damaged core to recover some money. Good luck and sorry that your engine is not happy. It would be great to see why a BE bearing spun. I am sure Green-Eggs and AutoTalent would be interested to see the root cause of the spun bearing. Cheers,
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08-21-2020, 04:59 PM | #48 | |
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08-21-2020, 08:18 PM | #49 |
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I dont see any PMs. Feel free to try again but I think I remember your call at the shop.
With these engines, if you have rod knock more often than not the crank is toast which means it's tear down time. For most cars it's more economical to install a replacement engine. |
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08-21-2020, 09:06 PM | #50 | |
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08-23-2020, 09:47 AM | #51 |
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I cry a little every time I see someone else driving a bmw or any other sports car.
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08-23-2020, 01:00 PM | #52 |
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If you really love the M3, and want to make the commitment to own it long term, I think the best solution (not cheapest) is rebuild the engine at a quality shop. Replacement is cheaper, but it's another used engine with unknown history.
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08-23-2020, 03:44 PM | #53 |
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That's the goal depending on what it looks like after I open it up.
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08-26-2020, 10:18 PM | #54 |
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Hey OP, any news yet? Interested to see whether the BE bearings failed or if it was a main.
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08-27-2020, 08:51 AM | #55 |
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I am very slow and meticulous when i do anything on my car to the point that i actually put all the nuts and bolts in zip lock bags and label them. Ha! I just got it on my quick jacks and started removing components in the way yesterday. I should have some updates soon at least on the rod bearings and crank.
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09-03-2020, 11:03 PM | #58 |
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Got the pan off finally, everything seems to be in place so far except the metal fragments in the pickup tube. the front pickup had a few copper shavings. The shop who did the install originally, appears to have stripped 2 of the screw holes in the block for the oil pan, and forgot to install 2 additional screws so i am down a total of 4 oil pan screws, 2 of which probably need a timesert now, surprised nothing leaked. Anyway here are the initial pics, I will add more in the next few days as i investigate further. first thing since i am waiting on a new torque wrench, is to rotate the crank and check the caps to see if any are loose before i remove them, then ill start pulling them one by one and check for damage.
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09-04-2020, 05:58 PM | #60 | |
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Good luck!!
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09-04-2020, 08:34 PM | #61 |
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09-05-2020, 07:59 PM | #62 |
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I am dropping the subframe completely by the strut towers before i can get to start pulling and inspecting the bearings. when i pull the bearing do i need to put installation lubricant back on them and the rod bolts upon reinstall? If so i was going to use redline assembly lubricant for the existing rod bearings, but what about the bolts? the rod bearing diy appears to show some kind of silver/grey lubricant almost like anti-seize on the bolts upon re-install.
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09-05-2020, 08:41 PM | #63 | |
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09-05-2020, 11:21 PM | #64 | |
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The bolts need to have ARP lube on them. If they are BMW OE bolts they cannot be re-used. If they are ARP bolts they can be re-used. Make sure everything is clean and the tangs are lined up. If you did spin a bearing, you need a full tear down to get rid of all the swarf. Cheers,
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09-07-2020, 12:28 PM | #65 |
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Quick update; i finally had time to remove the oil pipes and sub-frame completely. I now have full access to rod bearings now. so far no rod bolts appear to be backed out ,which dispels my first theory.
Here is my game plan; When i get the assembly and arp lube this week, i was going to remove, inspect, lube bolts and bearings and reinstall on at a time. If i find damage only to the rod bearings and journal is clean, i was going to order a replacement set of RB's and only replace the damaged RB's. If i find no damage, i have to assume the debris came from the mains and total failure is imminent and i need to replace or rebuild. i rather replace since i intend on keeping and i can replace it myself. Here are some closeups of the shells, everything looks in order, nothing loose. in the pickup tube pic you can clearly see the copper around the edges of the mesh. Last edited by bmwm3s65; 09-07-2020 at 01:02 PM.. |
09-09-2020, 04:45 PM | #66 |
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wow
Man you have some serious patience. You're all the way to that point and haven't pulled the shells yet. I'd be chewing my fingers off waiting to back those bolts out....wish you the best outcome. and FYI if that shop messed up installing the pan, you should have a little chat with them. They have no business working on your car.
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