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73,334 Views ā¢ Oct 14, 2023 ā¢ Click to toggle off description
M539 Restorations: Ā Ā Ā ā¢Ā 103k-MileĀ BMWĀ M3Ā S65Ā V8Ā EngineĀ Teardo...Ā Ā
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Views : 73,334
Genre: Autos & Vehicles
Date of upload: Oct 14, 2023 ^^
Rating : 4.89 (123/4,332 LTDR)
RYD date created : 2024-05-16T21:42:43.292411Z
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YouTube Comments - 511 Comments
Top Comments of this video!! :3
Seeing M539 being mentioned puts a smile on my face. that guy deserves all the attention
67 |
Can we just recognize Pete for being such a trooper!
163 |
4:15 this is unfortunately not true. On the back of the crank you'll find markings indicating different colours for each journal. Each colour indicates a different bearing clearance, it also states so for upper shells and lower shells. The one size fits all packages which you can purchase simply don't meet the extremely finicky nature of these engines. The crank is also scrap as they are only case hardened and grinding it will result in removing the hardening, attempting to reharden it will cause it to bend, runout on these cranks are limited to 0.002mm. If it's out of spec, you will notice accelerated bearing wear imminent failure. I do believe it is possible to repair the crank, bit I do not believe that it is worth the hassle or stress involved in doing so, the ideal fix would now be to replace the crank. Check the main journals in the block for roundness, bearing failure results in pounding of the main bearing saddles which would also cause a premature failure in the near future.
264 |
It was the VAC coated bearings, the coating eats into the clearances between the bearings and the crank. Everyone in the E9x M3 community knows the BE Bearings are the gold standard.
Build a stroker.
19 |
Never run aftermarket hardware (ARP) without checking and correcting clearances - you do that on junk yard motors that are a dime a dozen not an S65. Your M3 went 162000 km with rod bearings that looked fine, remember that. There is ZERO need for ARP hardware anywhere on this engine.
14 |
The question nobody's asking is at 20:01 sitting on the shelf you've got a classic Pole Position arcade machine in a box. Come on guys, set that thing up! Great video, and it's inspiring to see you have a big setback and overcome. Well done!
31 |
I would go with BE Bearings this second time around, they're a much more reputable company than VAC & individually measure each set before they send it out.
18 |
I have one of these cars and have been running it for over a decade as a daily and have tracked in occasionally as well. I've done endless research about these problems on forums etc for preventative maintenance purposes, and although you will never get an absolute consensus on the boards for even the rod bearings, there is a commonly reported number 1 main bearing failure for the reasons garage 539 mentioned. the crank is very extended past the number 1 bearing and has high leverage on it, so that the dual timing chain setup will cause an exaggerated upwards force on the crank.
It's more common to run into the number 1 main bearing failing with supercharged cars, where their power pulley adds additional load (like the timing chains, in the same direction too and at the very tip of the crank with the highest leverage). Also note that when i was looking at main bearings i noticed most specialty tuners like Turner and Bimmer world etc were recommending running the YELLOW (loosest) main bearings for ALL the mains when doing the mains, because like the rod bearings these run too tight a clearance as the oem setup.
I did my rod bearings 10k km ago at 172k km and they looked decent, but i was mindful of the number 1 main and decided i'll gamble, seeing how it's pricey at the shop and i don't currently have a place to do it myself.
regarding temperatures, these cars also have a lazy thermostat that can show itself at around 85-100k km, but a less discussed one on the boards is the oil thermostat which requires the replacement of the whole filter housing iirc, which can in my experience contribute to the oil being a bit hotter, but i doubt it was oiling related, number 1 main is the most likely culprit.
11 |
As a once Euro enthusiast it's cathartic to see that even the more competent among us are not immune to these piles of crap. Every time I want to get back in the game I watch a video like this, laugh, and I'm safe from a dumb purchase for another few months.
2 |
that's what happens when you change to aftermarket rod bolts and use different bearings without checking the big end is in round at the new torque load and confirming the correct rod to crankshaft clearances
15 |
6:26 I have run into oil starvation on my E92 M3, my car was being run on a Haltech Nexus R5, it happened in low speed switchbacks, I ran my motor on royal purple xpr 10w60, whenever I had oil starvation, the Haltech basically switched the car off to preserve the motor, I had this problem even with VAC's baffle kit installed in the oil pan.
10 |
VAC coated bearings impact the clearances and ARP fasteners at a higher torque impact roundness. Also interesting you had the no.1 main failure mode as well.
BE uncoated bearings are the move for the S65 as Iām sure others will support.
Good luck with the next one!
12 |
Such a bummer guys. Glad
To know youāll rebuild this. Canāt wait until next spring and we get the true showdown!
28 |
It genuinely believe the aftermarket bearings were not properly sized. Even if all the factory cranks had the same size journals there are still differences in tolerances that absolutely need to be checked. I beg you when you do the rod bearings on this new engine check each and every one for proper tolerances.
11 |
I stand by what I said in the previous video. Running arp rod bolts have caused this. You can run thousands of ks with rod bolts no problem or you can run 5ks with them and destroy engines. They make the rod end go out of round slightly. Dry fit your bearings in the rod out of the block and I guarantee they won't be in spec
8 |
A collab with M539 would be awesome šš»
3 |
This was a very cool deep dive into the engine teardown. THANK YOU!
|
Transfer those throttle bodies to the new engine!
"I Do Cars" is another good YT channel for insight into engine failure modes, and he does a ton of work on BMW's too.
9 |
Great video! Sad to see the engine is toast but I appreciate how meticulous and upbeat. You are even with bad news.
21 |
@pete9110
7 months ago
Bring back the dipstick!
276 |