Real Mechanic Reacts to Catastrophic Engine Failures
We hired real mechanics to break down catastrophic engine failures. Some of these are from user error, some are mechanical failures, and some are just freak accidents. Hopefully you can learn something about what NOT to do when working on your own car.
Huge thanks to our experts: Paul, Sandro & Jacob! Drop some love for them in the comments.
Real Mechanic Stuff is a brand new channel from your pals at Donut. We'll be featuring all kinds of automotive experts every week.
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2 videos in an hour, you guys work way harder than those chumps at donut.
@CTRaptor
Жыл бұрын
@@SAMPLETEXT285 joke
@samuelgarrod8327
Жыл бұрын
@@SAMPLETEXT285 Really??? Who'd have thought 🤔
@InsideAndroidHD
Жыл бұрын
😂😂
@GibbyTTV
Жыл бұрын
@@SAMPLETEXT285 you rly missed the joke 💀💀💀💀
@bagatuuri8070
Жыл бұрын
:D
"the internet thought we were bad at working on subarus" hilarious
@baelm
Жыл бұрын
lowkey? revving an oilless boxer that long just makes me feel better about mine
@chrisS19019
Жыл бұрын
@@baelm mine too. 156000 miles. 2008 wrx
@baelm
Жыл бұрын
@@chrisS19019 i have a 205 with about 25k or so on the rebuild, has a rattle so seems like they put in stock size pistons on an old block where they should have honed the bores and oversized the pistons
@nicki8731
Жыл бұрын
yall are really gentle on them subies. Donut actually drove them like the rest of us.
@baelm
Жыл бұрын
@@nicki8731 i beat the piss out of mine just about every drive
Sandro is the most mechanic looking mechanic EVER
@matthewlucas4142
Ай бұрын
If I walk into a shop and a dude that looks like him is in there I’m going to intrinsically trust them fr
The run away diesel was a constant risk when I worked in the oil patch. All trucks and equipment were required to have positive air shut-off systems incase of a gas leak. Crazy stuff.
@Kumquat_Lord
Жыл бұрын
I've seen the NTSB video where a runaway diesel engine set off a massive explosion, so that safety feature makes perfect sense to me.
@YS420X
11 ай бұрын
@Kumquat_Lord I watched that too haha. CSB makes great videos
@Theinatoriinator
10 ай бұрын
@@Kumquat_Lord Yeah, unfortunately in one I recall him flipping the positive air shutoff caused a backfire or something like that and ignited the vapors. He should've just run because there was nothing he could do.
@4450krank
10 ай бұрын
Anything diesel should have that i think.
Jeremiah and Sandro are the best duo without them even knowing it.
@samholdsworth420
Жыл бұрын
Sandra looks like a stupid Mexican gangbanger sussy baka
@billbill6886
Жыл бұрын
on god
@MomJeans2
Жыл бұрын
Yeah they were a really chill duo. They seemed focused on getting the videos over than themselves.
@MaNameizJeff
Жыл бұрын
I could just watch sandro tear stupid car guys up all day.
@TheUpGrayed
Жыл бұрын
Sandro seems like such a cool guy to hang out in the shop with. Encyclopedic knowledge and funny and witty. 🙂
Sandro and Jeremiah are a great duo...keep bringing him back. Hes got a chill laid back sense of humor
@jakesmiley1988
Жыл бұрын
Dude 1000000% my thoughts. Make them a regular duo!
@seancca
Жыл бұрын
yes! I need them hosting other things!
@Starkillr1
10 ай бұрын
yea if youre 3 years old and have nothing to do all day but watch two man babies try to seem relevant.
I love the chill mechanic who's just like "let it evaporate bro".
@timothylanders3189
11 ай бұрын
He's a dopey lookin prick hey lol :p
For those that don't know, the truck that launched it's engine out wasn't broken motor mounts. Pullers like that have strengthened everything in the engine to the point the block itself is now the weakest point. That truck blew the top half of the block, head and all, right out of the truck. You can see in a different picture of the truck after that the crank and pistons were in it and the cylinders were in the part that launched out.
@JessieB347
9 ай бұрын
Yep, in the divisions that dont allow billet blocks you will often see the blocks split in half all the way around at the freeze plugs.
In case anyone was wondering that semi that lost its engine during the pull was probably pushing close to 130-140 psi on triple turbos. The pullers go hard
@GooseAutoWorks
Жыл бұрын
Yeah, he said 60 pounds and I was thinking, "Nah, that's over 100 pounds at LEAST."
@Sam-ob4of
Жыл бұрын
You meant it was pushing 8,93 to 9,6 bar
@nathanielcanfield2132
Жыл бұрын
Yeah, my 3rd gen dodge hits 60psi at Wot with a single fleece cheetah
@zachmoritz9856
Жыл бұрын
And motor mounts didn't break, he split the block
@sappy4happy448
Жыл бұрын
Well at least he doesn’t have to take out the engine. Simple in-frame and it should be good as new……..not.
Runaway diesels usually are a matter of an internal oil leak, the diesel will start to burn the oil as fuel even after you cut the fuel injectors off.
@backcountryme
Жыл бұрын
Can be from explosive gasses in the air too. On the oil and gas sites here in Canada you have to have runaway prevention device on all Diesel engines on site. If there is a slight natural gas leak it can cause the engines to runaway. I have even seen a propane station leak cause a runaway on a truck.
@JayFredTheFreshest
Жыл бұрын
@Backmarker Racing oh wow, down here in Texas we don't have to have any prevention devices. Oil plants, refineries, even natural gas power plants, this was the first I've heard of that. I wonder if the climate here has anything to do with different regulations?
@markzenhorst5259
Жыл бұрын
its either a failure within sending oil into the cylinder or, more commonly, when it is overfilled with oil or from driving (short) distances when the engine oil gets diluted with diesel resulting in a higher than max oil level. it wil push oil past the piston rings into the cylinder and take off to max rpm (usually 5500-6500, diesel wont burn faster than that)
@mech____
Жыл бұрын
@@JayFredTheFreshest the worst refinery accident in texas happened due to a runaway diesel, texas city refinery explosion 2005
@Jacob-hy1oq
Жыл бұрын
@@markzenhorst5259 turbo oil seal can also feed oil in
Sandro is always saying “that’s dope” and I love it😂 like, “shit you blew the head gasket?” - THATS DOPE. “Damn, that guy crashed his car” - THATS DOPE. Thank you Sandro ❤😂
@Starkillr1
10 ай бұрын
its cause hes a one trick pony, like this entire channel is.
@jamesw2111
9 ай бұрын
The same in the "would you ride or not be caught dead in it?" video. Dude's chill with anything
@baileyayyy5085
9 ай бұрын
@@Starkillr1 "why wont this car channel talk about stuff besides cars" 💀
@obeseperson
8 ай бұрын
@@Starkillr1why did you leave so many angry comments on their channel lmao what’s your problem
@pedinhuh16
5 ай бұрын
@@obesepersonEnvy.
Sandro never fails to make me laugh. Seems like such a chill dude
@pranays
9 ай бұрын
100%
@maotisjan
2 ай бұрын
Dude found his calling, plain and simple
This is going to be my favorite channel, don't tell those guys at donut media 👀
@JaredConnell
Жыл бұрын
Before i saw your comment i just figured it was the donut main channel
@usernameisrequired
Жыл бұрын
@@JaredConnell lol same
@benjaminfaynberg1784
Жыл бұрын
dude this channel came out because these vids isn't similar to want the other donut vids are like but people like these vids so they lauched this channel
Sandro is one of my favorite guests.
@rarebrownboi774
8 ай бұрын
Werez Angelina dat my fav ❤
thanks for explaining what happened to my childhood school bus that one time. She was an old girl that broke down a lot, we had to cross on a ferry to get to school and one day when the driver was warming her up, he stood outside to talk to a parent and the bus started just revving and it got pretty high pitched. Never saw that driver run before or since. now i know why
@merlin_gt4472
11 ай бұрын
Someone Tell me if im wrong but the explanation of them saying its Diesel vapours that get sucked in is wrong. Whats its actually caused by is if you have a turbo that is worn out and starts sucking in the oil thats keeping it lubed up the engine Starts running on its own oil that the turbo is shoving in there hence why you cant Just Turn it of couse the engine isnt running on fuel anymore at that point its running on its own oil.
@FingersMahoney
8 ай бұрын
Hey, um.....I think your bus driver left you to die.
Just imagine a shirt for Sandro saying I see you did it for the boys. With a blown engine while he's next to the shot out connecting rod. 😂
@caseydarrah
11 ай бұрын
FOR THE BOYS!
Getting the water out of the engine at 15:00 was so cool to see the firing order or the engine.
Little know fact here, in order to complete a true, 100% percent oil change, you can't just drain the oil and replace it. That leaves all the old oil on the interior parts.... to make sure all used oil is gone, it's common practice to leave the pan off and bang the rev limiter for at least 3 minutes to burn off the used oil. Pro shops dont want you to know this performance technique.
@sdreaver816
Жыл бұрын
💀
@TheChayxxx
Жыл бұрын
No
@sublicenseable
Жыл бұрын
Why not just put the engine in the microwave for 5 min, the old oil will boil away
@jonf2009
Жыл бұрын
Yeah no I'm not putting my iphone in a microwave to charge it billy, no matter how much you try and convince me.
@henrysutulovich6608
Жыл бұрын
@@jonf2009 Smart, considering that hack only works on Samsung phones
It's hilarious that whenever you see those flood videos, the water is shallow enough that maybe you could get through if you go slow, but people attack it so fast that it creates a massive wave over the front of the car that floods the engine.
@SimonJ57
11 ай бұрын
The one shown here is a famous ford in England, they recently closed it from all the knob-heads doing this to their cars.
@KarlEller
7 ай бұрын
Yeah, those trucks normally have their air intake mounted fairly high, if they had just gone in slow they most likely would have been fine.
@dougerrohmer
5 ай бұрын
@@SimonJ57 And obviously those in the know when the ford is flooded and all fire up the old cameras.
if anyone is old enough to remember when ABC used to do the wide world of sports back in the day, you use to see some of the old top fuel dragsters blow the top end off their motors at times. was always spectacular to watch!
Runaway diesels are no joke, i have a big diesel engine from the 60s for industrial equipment that does it sometimes and its one of the scariest things i have dealt with. Great upload
@bigboyblasta
Жыл бұрын
Youre saying it like its a common ocurrence😳
@ChefofWar33
Жыл бұрын
At that point your only choice is to throw it in neutral and say goodbye to your engine.
@Aliyah_666
Жыл бұрын
@@ChefofWar33 I mean that guy knew his engine well. He choked it of air long before it ran too much. Quick thinking on his part.
I'm so happy y'all made this video format into its own channel.
@tyreecefranklin3288
Жыл бұрын
Me too
I'm amazed how long they were able to rev that car with out an oil pan.
When I was in auto/diesel school, we had a diesel engine runaway during class on an engine stand. The instructor told everyone to back away, and jumped in with a clipboard to suffocate it. It worked, and it was scary to see and hear that thing going faster and faster by itself. Was kinda cool to be there, since everything ended alright
So happy to be subscribed to such a small, humble channel.
@deltasixgaming
Жыл бұрын
I hope this is a Joke since it's a second channel to one of the Biggest Car KZread Channels on KZread
@clipsedrag13
Жыл бұрын
@@deltasixgaming i swear to god there needs to be an adult version of the internet because of people like you
@crysisbai
Жыл бұрын
@@clipsedrag13 hey hey chill out, he’s a gamer
@coastaku1954
Жыл бұрын
@@deltasixgaming wooooooooooooooooooooooooooooooooooooooooooooooooooosh
@wika1117
Жыл бұрын
@@deltasixgaming Is it really ? i just thought these guys really like donuts...
7:44 The most accurate thing said this video.
I was a passenger in almost the same situation as the flood video, so i can say with experience that the driver was trying to get to his local "Game Crazy" to buy NHL 2012. We all told him it was a bad idea, but he was dangerously Canadian.
Just found your page...as a retired mechanic I LOVE IT ❤️
Can we get a broken piston rod shirt with “What’s cracking?” on it? 😂 3:00
@raven4k998
Жыл бұрын
well my motor can do those rpms no problem but then again she's electric and does not have rods to break so yeah she's built for higher rpms then that she'd be fine the tranny probably not but oh well that's why my cars has a single speed reduction drive tranny to take that power🤣🤣🤣
Most runaway deseils happen when you have an oil leak somewhere. Usually in the turbo and it uses the oil as fuel and will not stop
I think the more common cause for run away diesel is a busted oil seal in the turbo leaking into the intake side. There are industrial scenarios where diesel engines have to be outfitted with emergency shut off valves due to excessive flammable gasses in the air that may occur at a fuel refinery or gas processing plant. You can still find some older diesels in use that have manual shut off valves in case of a run away event.
Love the new channel guys! And thanks for the runaway diesel info. Been a tech for 6 years and never heard of that before.
Makes me happy to see a clip from the UK in this video at 13.10. Rufford Ford, for anyone who doesn't already know. It's actually closed now because the locals complained as so many people would just hack it through and end up blocking the road when their car bit the dust
@thecatofnineswords
Жыл бұрын
There's a few channels here filming the idiots who drive through it. Good to hear it's finally closed.
@lilcharlie3130
Жыл бұрын
@@thecatofnineswords Nuts thing is the diversion was like 4 miles and people decide to still drive through it. Saw an R32 die there :(
14:49 WD-40 is barely a lubricant. It’s made for Water Displacement but it’s a much better thinner than it is a lubricant. It may help a heavier grease move better in a hinge or a bearing, but I would NEVER put it directly in the engine. Sandro was right just use oil, a tiny bit of trans fluid wouldn’t be bad.
12:16 I've seen that on a friends car a few years ago. Difference was, that he didnt add water, but used his car on everyday basis for a ~1 mile trip to work, so the engine never got to temperature. Result: condensed water accumulated in the oil pan, finally froze during winter and the engines last words were "wroo...blubb".
@phillipbader4144
7 ай бұрын
Did it every day for 4 months in Naples FLA...totaled the car before the engine failed.
the fact you got that ford crossing video in there is hilarious, i drive past this place most days for work. interesting backstory is this place got really popular for people smashing through it and for people videoing it so things kept getting more and more insane until eventually the police closed the road, i think its been closed for a good six months so far.
@cpt_nordbart
Жыл бұрын
Like that curve on Nürburg Ring.
So glad you guys found a way to bring us more fun with these mechanics. I love you old bald dude and I promise I'll learn your name
@DoctorKamino
Жыл бұрын
That IS his legal birth name.
@roseedge5626
11 ай бұрын
Paul
8:32 those 2-stroke Detroit Diesel engines are know for running away
The runaway diesel thing sounds a lot like how crew served weapons can start cooking off rounds and then "run away"
I wish i knew a mechanic like one of you guys. Super intelligent & experienced mechanics on this channel👍
👀
@razy5767
Жыл бұрын
Did you know you are the first comment
@captainsupermaket8003
Жыл бұрын
This an unofficial channel or what
@IeeIee778
Жыл бұрын
@@captainsupermaket8003 it's official
that's nice to have a different channel for this stuff, love it and please keep it going.
Sandro needs a full time spot at donut!
@8:40 'when in doubt, choke it out'... That's what she said
EJECTO SEATO CUZ! 2:33 can we get this on a shirt please!
Bruh, this is awesome! I've loved Paul and Sandro every time they've been on Donut, I can't get enough! Can't wait to see more content from this project!
13:27 Reminds me of a time after a hurricane. My mom and I were debating on getting groceries while in town. The store's parking lot could only be accessed by two long driveways, the grocery store being behind another business, both driveways flooded. We waited for a while, debating on attempting the drive. Then we saw a Pepsi/Coke truck (I forget which) start to drive out. When it hit that water, it made a pretty good impression of a snowplow. Needless to say, we said, "Nope!" That was just too much water!
Sandro and jerry together are classic gold
I love how the guy recording the subby kept stepping back LOL
Netflix: are you still watching? Someone’s daughter: 6:52
@justajabronie
6 ай бұрын
😂😂😂😂😂 doooood!! That joke goes hard.
Man, those Donut guys are real silly goobers, can you imagine if they had a KZread channel where they were education but still had their personalities in full force, educating people anything and everything about cars? Man, what a wild and amazing channel that would be.
@MJ-uk6lu
Жыл бұрын
That's called Donut
I love how Sandro is always so cool calm and collected like nothing startles this guy. Its always for the Boyz!!!
9:18 the camshaft just said "Woah the outside world is pretty"
I feel like this is the beginning of a beautiful relationship
3:45 watching that exhaust go from black to white before the engine jumps out
At 7:57 that runaway was from the fuel rail (basically the throttle for a diesel) got jammed WOT. So its not like it was struggeling on some busted oil seal......It went WOT and stayed there 😂
Ohh yeah, this 100% deserves it's own channel. Can't wait for the content you guys pump out here. You guys find some of the coolest mechanics out there.
Can we also appreciate the editing mixed in with Justin’s comedic timing? 😂😂
7:02 they fail to mention most run-away diesel situations are usually caused by the turbo feeding the cylinders with atomized oil form a bad oil seal within the turbo and not typically a fuel leak.
Real mechanic stuff is actually a cool idea 😮
@deltasixgaming
Жыл бұрын
Hopefully we get more Real Mechanic Stuff
9:07 My emotions went like: Oh no! Not the rotary Rx7! *after realizing:* Oh, it's a swap. ugh They deserved it, but not the car that was swapped. You ruin the rotaty/pop up headlights - you get what you deserve.
Angelina and Sandro total win. Love the new channel guys. These videos are FUN.
14:30 That road is always flooded a little, and there's tons of videos of cars making it through. On that day it was just under high water. People DID mess up so often that the road was shut down earlier this year.
You guys should do an episode on performance diesels. 200+ psi of boost running down a 1/8 mile hits different
@nthgth
11 ай бұрын
Mother of God, now that's boosted
This makes me feel so much better about the time put a bit of water in my Powersteering Fluid thinking it was water.
watching these to educate myself. remembering the times I fumbled the knob and switched from 4th to 2nd gear. maybe... twice in 6 years? I love my Nissan Pixo. He's a good boy. Never has had any trouble, but I also have him checked regularly.
Why am I just now finding this channel?? Rock on guys, y'all kick ass!!
16:35. Great point, Zac. If you're working on your vehicle disconnect the battery and use chock blocks and jack Stands. 😁👍
@BMWe-ed2tn
Жыл бұрын
I'd modifyit just a bit;If you're ever working on a vehicle make sure to have a fire extinguisher nearby. I have two 30 lbs extinguishers in opposite ends of my garage and a small one in the trunk of my cars. Haven't had to use one yet but i have friends who wished they had a small one,otherwise by the time you get help you've lost alot of money.
@leegoddard2618
Жыл бұрын
@@BMWe-ed2tn you assume one has a shop. 😕 I'm just talkin' "roadside".
@BMWe-ed2tn
Жыл бұрын
@@leegoddard2618 When I said garage I really meant a garage, give I can fit 2cars in mine I still fear a fire in the opposite end. Even roadside you should have a small 5lbs extinguisher , it’s a cheap 20bucks insurance against a total loss :) But yeah jackstands and chicks can mean life or death(not saying a fire can’t)
@leegoddard2618
Жыл бұрын
@@BMWe-ed2tn no, you're right, having one (fire extinguisher) in the vehicle is good. 😁👍
@raven4k998
Жыл бұрын
but he turned his car into a piece of trash so now you know what not to do to make your car a piece of trash kids learn from his mistake😁👍
You can prevent money shifting by beefing up your drivedrain mounts and shift bushings. A lot of times this happens because under load your shifter will be in a diferent place then when you lift off, so people miss the gate by accedent going from 4th to 5th,
Sandro's probably my favorite dude of them all.
LOL 🤣I like it when Sandro takes part in your videos. He's funny af.
I don’t know why I’m here but I’m happy, don’t tell 🍩 lol
This is the channel we all needed
1:26 that ad placement was killer...made me laugh!
I'm not really that much into car stuff, but this is really fun and interesting to watch!
I can only imagine that any tuning setup that would allow you to rev your engine to 9000rpms would also allow you to place a rev limiter anywhere you please. RIP little D.
The tractor pulls, those motors are pushing close to around 5000 ft lbs of torque, or just shy of it. It’s absolutely insane. I mean their boost i think is around 150 lbs or more
@toodamnmanyprojects7094
Жыл бұрын
200 plus.
@Lucky_Logan
Жыл бұрын
@@toodamnmanyprojects7094 yeah i know the shit is high and extraordinary to see what people can really do with turbo diesels
9:38 - Had this happen in my MX5. Likely the head was not getting enough oil and the camp welded itself to the head while the crank was still rotating and the timing belt ripped off the cam gear.
@lonewitness9794
8 ай бұрын
The guys car it is has a insta page and went over it on concept 3 i cant remember but it snapped the gear and damaged a couple other parts but he said he did everything right and had everything tourqed to specs
@erykkilianek1111
8 ай бұрын
@@lonewitness9794 mine did it after a hard drive on track, I believe it overheated at one point and I didn't notice, then I didn't let the engine idle and cool off enough after the drive. Same I've checked all bolts for torque and was sure they were right.
I spent a few years on light tanks called M551 Sheridan's. Runaway engines were fairly common. The tank commander would have to jump out of the turret, open the rear engine deck, kick the intake hose off and stick a clipboard or book against the turbo inlet while you were driving across the desert to kill it. Always funny.
The pulling truck that blew an engine was probably pushing over 2,000 hp. Insane power
@Nahthataintmeimaboss
Жыл бұрын
Yeah I'd say that 60 psi was a low ball I got friends that street 60 on their street trucks probably overly 100 psi
@ii1825
Жыл бұрын
@@Nahthataintmeimaboss This! Heck my BMW X5 diesel that's deleted and tuned runs 50psi.
@spicymsp1383
Жыл бұрын
@@Nahthataintmeimaboss I was thinking this as well. My severely detuned 579 pushes about 30psi, my previous detuned Cascadia was around 40psi at max. They're running like half power at those boost levels because of the detune. I also venture to say that it's more than 25 tons (on the first one at least) considering trailer + freight is regularly around 30 tons for an average, detuned semi tractor.
@gundude82
Жыл бұрын
It's got so much torque that the whole frame was twisting! Insane
@samiraperi467
Жыл бұрын
Engine wanted to be at the full pull line.
10:17 As a Subaru owner...
Couple of thing to unpack here: 1) You guys literally have the best job in the world! 2) How tf did that subie run full throttle with no oil pan for so long when your subie clapped out going around a corner with a sump full of oil (no baffles, blah blah blah, i know). Great vid. Keep it up.
Dig the idea of the new channel. It'd be cool to see you guys do something to Corridor Crew where you get mechanics/engineers or racing drivers/people to review iconic cars/races/parts/engineering whatever. People from the industry to come talk about their passion. Either way I'm looking forward to what you guys put out here!
You guys are definitely onto something here with the mechanics. Tweak it a bit to be more about their advice rather than entertainment(but keep the entertainment lol) and it'll be great.
subbed before 50 subs, commenting for proof ! !
4:25 Me takes it to mechanic: can you fix this? Mechanic: *throws entire truck in the trash*
There's a farmer in the UK who used to enter tractor pulling events with his tractor (obviously). He was curious to see what would happen if he mated a V8 and a straight 6, and it was epic.
Facebook marketplace engine runs well used lightly 10:52
Let’s goo top 100 sub
Detroits are notorious for running away. We used to keep a board nearby to hold over the turbos.
That black Silverado with the runaway happened in Fergus Ontario up in Canada. It was nuts
Money shifting as a kid: “I’m going to slam the imaginary stick down in my cardboard box car, speed up, and win the race like the hero I am!” Money shifting as an adult: “…I’m never going to financially recover from this.”
The ironic thing about the septic truck is he probably could've vacuumed up most of it
Horse pulling is still a thing. My cousin pulls with a team of Belgium horses. It is amazing to watch. They are 2,500 pound hams that love to show off. Basically, the horse equivalent of gym bros.
lesser known fact - when in doubt, choke it out - this does NOT apply to your girlfriends.
The second tractor pull one I think I saw they machine in person a year ago haha think was an absolute beast and even in the top row it was painfully loud 😂
Crazy to see Rufford Ford in one of your videos, that’s just up the road from me 🤯 big love!
Really digging the channel guys
That runaway diesel video actually happened in a small town near me
Bruh Sandro saying “that’s dope” when he sees the rod on the ground in front of the car is the best idc😂 spirit animal