Mercedes AMG engine nightmare

People that can disassemble and re-assemblé an entire engine have my deepest respect. It requires so much skill.

I spent most of my life in the repair industry, including 38 years as a shop owner. I wish I could have found a machine half as good as his. Dave and his men are amazing.

Cars have become WAY too complicated. Just because you can design something on a computer doesn't mean you should build it and put it in vehicle. Somebody has to build it... somebody has to be able to service and repair it. And those somebody's are human beings... who don't have the memory or the computational power of a modern computer. We don't need cars that produce 500, 600, 700 hp and go 200+ mph. That's just insane--and should have been made illegal decades ago. We need cars that are reliable and affordable and energy efficient.

As a lifetime retired mechanic here in Reno I am so appreciative of you taking the time to document the disasters that are apparently often brought to you for help! I'm sure you could make much more money by just focusing on what you all do best rather than diverting time and energy on documenting your efforts to amaze all us lesser wrenches. Thanks for sharing your intelligence with us!

When I was in my early 20’s, I was running an excavator building wood roads pretty far back in the bush and we lost an injection pump on the machine…an old school Cat mechanic came out to see what went wrong and he figured it was from fuel contamination…we fixed that problem and I figured he would take the injection pump off and take it back to the shop and swap it with a new one but he decided to rebuild it sitting on the machine!…I asked him “is that wise”… he said he did it all the time so here we were in the bush with mud and grease all around us, building this pump on a Saturday morning and it was quite intimidating to me and I asked him how he could handle the stress of pulling such intricate stuff apart like this in less than ideal conditions and he stopped what he was doing and looked me in the eyes and said “people are way more complicated than this pump and at the end of the day it’s just nuts and bolts so don’t stress over it”…nuts and bolts indeed!!

This is the kind of shop a guy DREAMS of working at. 20 years I've been a BMW technician and never before have I seen a shop run the way that every tech WISHES theirs was. You guys deserve all the respect and prosperity in the world. If I weren't up in northern Canada with a young family, I might just come and fix BMW's for ya for the rest of my life ;)

M156 is the first engine designed by AMG. They have known quirks but have become a legend at the same time. I have one in my 2009 E63 with 59k. Runs like a top. Good luck with the project and thanks for sharing.

Please do a follow-up on this one when you have it figured out. This is fascinating

I've seen this failure before. It isn't a forging defect, it's an INGOT defect. When the ingot cools, the top end of the ingot shrinks and there is a giant divot that forms. When the ingot is reduced in size by hammering it is customary to first cut part of the ingot off where the divot is. Any remaining part of the divot is hammered shut by the initial forging but sometimes the two sides don't weld themselves back together and you get what I believe are called "cold shuts". As the ingot is reduced in size more and more until it is turned into a billet, the cold shut will be there waiting right in the middle of the billet. It is pretty rare, but it can happen. I saw this happen on a giant steel flex disk produced by Leningrad Metal Works. It caused some panic as it was on a 50+ year old machine and we had to figure out it this was going to happen to all the other flex disks (24) or if it was a singularity.

I like watching father and son working together. Reminds me of my son and I working on cars. There's really no better mechanic team as a father and son. They both think alike and what one might miss, the other one will see it. Love it!!

Gentleman, what an outstanding impressive, impecable and impressive amount of technical information you just put out in less than twenty minutes, at my 71 years of age and been a gas and diesel technician I felt like a kid with a new toy, my most expressive thanks to you guys for sharing it with us, CONGRATULATIONS GUYS, blessings to all of you,please keep up the good work, from the endless summer paradise Puerto Rico Jesus Torres.

Not a flat plane crank, still a traditional cross plane design. The only Mercedes V8 I know of with a flat plane started in the newer AMG GT R Black Series.

You must feel blessed to go through this with your son and how awesome and talented he is. From one father to another. Bless.

Incredible skill. Incredible machinery. Incredible staff. I wish I could take my car to these guys. Just taking a look at it will make it all better without touching it.

The whole car to be worth $8000 in 5 years.

Love seeing the internal work at the shop, thanks for sharing Dave!

Pay the dealer 6k and the car breaks 20min later then they’re like “look buddy, sorry but you gotta go somewhere else”.

This video is amazing how dealer explained problem was so articulate that a non machanic like myself understood the problem

I can't believe the amount of expertise and skill you guys have.

I have to stop this video 1/3 the way through just to let you know that you guys have taught me so much. I really appreciate it it. Thank you.