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I guess, I'm not sure I'd want one of the cylinders to be sleeved and effectively end up with higher internal friction than the other cylinders. My understanding is that NANOSLIDE has up to 50% less friction than what you will get with a sleeve, so that one cylinder will be down on power having to overcome more friction with each stroke. Curious what that'll do to the balance of the engine.
They won't sleeve only one cylinder. All 8 must be sleeved.
That type of damage is from detonation, so even after the build, make sure you address the tune or whatever was the root cause so you don't end up back there again. A failing injector on that cylinder could also be the culprit, I've seen them spray fuel unevenly and cause a hot spot and melt the pistons on a side, but on a tuned car i'd be far more suspect of a detonation/knock blowing the piston apart due to the tune.
Sucks, but that's the cost of playing the game sadly. What's darton going to charge to sleeve the block?
***UPDATE***
Got some good news from the shop today. The machine shop called and the machining went well and the block can take the sleeving. They've ordered the final spec Darton sleeves to do the rebuild. Now that we know this, along with the sleeve material, Weistec forged pistons and rods have also been ordered - we're staying with stock size. My turbos are off to Weistec for the W.3 machining upgrade. I miss my V8.
***UPDATE***
Got some good news from the shop today. The machine shop called and the machining went well and the block can take the sleeving. They've ordered the final spec Darton sleeves to do the rebuild. Now that we know this, along with the sleeve material, Weistec forged pistons and rods have also been ordered - we're staying with stock size. My turbos are off to Weistec for the W.3 machining upgrade. I miss my V8.
Maybe one day you can tell us what the total cost was for all that? At least ballpark?
2010 BMW E63 M6 Coupe 2023 AMG C63s Coupe 2005 YZF-R1
Originally Posted by wings02
I hear horror stories like this all too often. Anyone that is doing modifications like this run a big risk. MBUSA, BMWUSA, and others will use almost any excuse not to cover a warranty repair. One of their cars that have been modified makes their decision to void the warranty an easy one. The performance and sound of a stock C63s is great. If a consumer wants more performance than this model will provide, they should look at other options. The driving pleasure of this car would be completely negated if I had to worry about expensive repair costs not covered under warranty due to modifications.
Does MB void the entire warranty, or just engine related issues going forward in a case like this? Say the power windows or something else totally unrelated were to fail, is the entire warranty void?
Does MB void the entire warranty, or just engine related issues going forward in a case like this? Say the power windows or something else totally unrelated were to fail, is the entire warranty void?
Modifications only void the warranty on the modified components or any related faults. So a built engine will not void your warranty on the interior electronics, but if you broke a rear axle due to the extra power, they would not have to cover the axle.
Forged pistons and rods came in from Weistec for the m177. The block was sleeved with Darton sleeves and has been honed to the final spec pistons. Let the rebuild begin! Can’t wait to get back on track.
Forged pistons and rods came in from Weistec for the m177. The block was sleeved with Darton sleeves and has been honed to the final spec pistons. Let the rebuild begin! Can’t wait to get back on track.
Christ. You've been without your C63 since May last year?
So since you were having all this work done to the motor - including sleeves, rods and pistons - did you bore it out any to increase the displacement? Or is that not really an option with this block?
So since you were having all this work done to the motor - including sleeves, rods and pistons - did you bore it out any to increase the displacement? Or is that not really an option with this block?
No, we didn’t bore it to increase the displacement. We didn’t want to start messing with compression ratios, etc and felt keep the same displacement was safest bet.
No, we didn’t bore it to increase the displacement. We didn’t want to start messing with compression ratios, etc and felt keep the same displacement was safest bet.
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Last edited by Kieran Williams; 03-17-2022 at 01:42 PM.
No, we didn’t bore it to increase the displacement. We didn’t want to start messing with compression ratios, etc and felt keep the same displacement was safest bet.
Like Jim asked above..... was the velos tune supposed to be stage 2? It's off the shelf yeah? Not a custom?
Yes, the Velos tune was a stage 2 tune and as far as I know, it was off the shelf.
The reason I was asking is this seems to be a thing now. Yours is the 4th car with stage 2 tune I've come across with the exact same problem with piston damage. The other bloke exact same thing happened with his but he wasn't even driving it hard he was in Comfort mode and just said he heard a bang and oil was all over road......
At least now you'll never have this problem again and your motor will be bulletproof after the rebuild 🙏🙏🙏
A few years ago mercedes released a tsb for the M157 engines regarding indexing the plugs.
If not done they had shown the results of melted pistons on stock cars.
I haven't needed change my own plugs yet but will be sure to index them as a precaution when I do..
I wondee if non indexed plugs contiributed to any of these failures
I was under the impression that indexing spark plugs was more of a thing for inefficient head designs and older flathead motors. Or to get clearance in a motor with a higher domed piston installed in it. I doubt that indexing plugs has any effect in the M177 and would think that proper plug gap would be more important.
I wonder if there have been any tests on this in a newer motor?
The reason I was asking is this seems to be a thing now. Yours is the 4th car with stage 2 tune I've come across with the exact same problem with piston damage. The other bloke exact same thing happened with his but he wasn't even driving it hard he was in Comfort mode and just said he heard a bang and oil was all over road......
At least now you'll never have this problem again and your motor will be bulletproof after the rebuild 🙏🙏🙏
Can't wait to see this finished!!!! Any eta???
I can’t wait either! I’m hopeful for sometime this month.
I doubt it's poor engine design, but more a byproduct of trying to use the minimal amount of fuel to make maximum hp. As well as trying to meet emissions and mileage requirements
Direct injection allows for much leaner running
As for the guy who waa just driving in comfort mode. I suspect he hurt the motor earlier and it juat happen to completely fail when he wasn't on it
People don't seem to realise that you can keep driving a hurt motor without it completely blowing up for a while.
06-29-2021 | 05:19 PM
