YTread Logo
YTread Logo

Why Did This Engine Fail?

Jun 10, 2021
Hi guys, how do you do? I'm waiting on some parts for the latest bike build some parts for the rear wheel so it's a few days away but your me will jump into something else just to have some fun and

this

is what our project is going to be is a Kohler twin

engine

one of the locals gave me a contact and said hey i got a couple

engine

s you might be interested in one of them smokes but runs and the other one threw a dipstick i think about the side of the block and that's the one you're looking at now so i'm gonna take it apart for parts and yeah I'll dispose of the carcass but I figure maybe we'll turn on the camera we'll take a look see what happened to it see why it

fail

ed and go from there

this

engine has a low level shutdown oil and generally don't run out of oil and blow up in this setup it could have been disconnected who knows but some other thing probably caused it to

fail

other than unknown low oil but that's what we're going to dissect and go to mine erda.
why did this engine fail
I'll find out I'm going to get the bike off the bench we'll put the motor on that one and make it look like the parts have already been removed probably another 4 machines are missing the carb that went right here there is a fan shroud that when I ran it it went around anything else fuel pumps dangling i think just the bolts on the flywheel housing exhaust have a bunch of holes there is your starter it's like i broke this starter right off the engine the bolts bent - c'mon to make the hole right there let's get this muffler and this teenager out of the way let's take a look at the inner sanctum of doom that boot out of our way so we got right there does it look like that? for you a half inch what a time a pinch it's like three days the other half started i mean they pushed hard i was on a leaf vac the stuff that goes in the back of a big truck and in autumn time they pick up even the leaves with it, but believe it, how is it being used? let's hit it I can see a rod and it goes all the way around okay not a good sign yeah it seems like both rods are coming loose it's like I was hoping once it was going to be connected I was going to try to turn it on but no I don't believe it so come on you could just take off the front cover and get it out of the way and get a better look at things.
why did this engine fail

More Interesting Facts About,

why did this engine fail...

The 20th hole where there is transfer everywhere. Butchery of all kinds. down there that shouldn't be and right through the block right there nice that rod i wonder if it's been turned and hit let's see how we get that out of there i like the look in the journal it wasn't dug up some pieces and i'll bring it back down a bit let some oils drip down well onto the covers remove if there was any fault with the upper valve train hit with a hammer look for any problems don't see one pushing down more than the other let's look at the other side now it looks really bad either we're going to get some of the cans out of here so I can get to the head bolts and get the heads out so I think that's the oil pressure switch not sure that's the one that shuts it down for low oil pressure a lot of times the guy, which I'm used to in generators, it's just that it's more low oil pressure, yeah, ten million have to get out of there, ten by ten those two think it again. no sign of mice here it has a lot of trash around it and a lot of times that will cause the top end to overheat you know it bounces the mouse nest within 10 right there yeah it's pretty full so I'm going to dig with it.
why did this engine fail
I definitely have an area where that would cause overheating you know what you hear what's going on they see it up there's a fan on this side and there was a shroud and this crowd goes up and blows air through these fins to cool the engine you know they don't works great if if we go ee that's what caused it but it doesn't help my mouth Steph who knows because this rail was already ripped off so there might have been something packed in a shroud when he removed it and knocked him out , but in general there are remains. of daylight, you'll see like a bunch of pine needles and like nesting cushion material from your patio cushions that you save and throw away and wonder why it had holes in it in the spring. take me in a fold so let's cut our way through some of the tethers we'll see where that one went, that's ours, it might have been unplugged at the other end, yeah, run it, keep putting it out, you pulled a wire. it keeps running for a while.
why did this engine fail
Hey, we had a storm one bad year, a power outage for eight days or something and the weather had little customers urging me to take care of their stuff and Janna asked me for a generator. Hey, thanks Co, say no. I have one for sale. I have one you could borrow. Thanks. Not about that, I installed them all with a Coleman. I bought a new one that probably looks 95 96 small five horsepower 20 I don't want just enough to run the oven in the fridge you know what's up with that and I installed it in the you're to give it a quart of oil, You don't know it didn't have a closure.
I said to myself afterwards, hey, every time you put gas in it, it'll probably run for four or five hours, that's what I had two and a half for. Gallon tank on it so say the six hours it was off. I said it's time just check the oil tank get oil. Go put oil on it. I get a call, will you do it later? this could be a sign of something good i'll go in today let me finish my story oh i'm going to go look and his son had moved the generator a little further from the house sitting on a hill like this well he didn't run out of oil but she darted so far she was starved for oil she darted far she was like a liter ally sitting at an angle like that on the side of a hill.
I just looked at her. I just shook my head. he was nice i think i paid it was like 300 bucks for it so i got three on our little generator he was a couple years old at the time and he gave me 150 for that I'd rather have had the generator at the time. I was trying to do it as a favor, but that's what happened. I learned not to lend the equipment so much. I can see both pushrods are bent and that one looks bent as well so the valves may have bumped into the piston which would make sense via a pushrod piston it will be all the way up maybe the speed of it still turning deleted it let's get these out and it will tell the story now just talking about it i need it to look like 9/ 16 metric no going half what are you doing with that?
We're going to find out that we have to deal with this. ing with kid gloves yeah no we got different gadgets let's get these rockers off do we have a plug for that still you know now we can look at it pretty straight if the pushrod won't come out Is it a bad song? that one not so much had done well wobbling to her Bertha you see add more to that story there was a time when the generators didn't have low oil shutdown I think that's probably where they put them for that reason because it's you know it's something that's running for a long period of time running you know 20 maybe 30 hours you think you don't think about the oil it's just circling around while maybe a lawn mower once every six months you take a look at Oil it at least once a season but honestly what do you do run your mower half an hour once a week six months a year give it some cash I don't see any other hardware surprise it it's just for that everything is what is ready, I see. no damage to the stock i wonder er i don't see any hits.
I don't see the valves that hit the piston, but it bent a pushrod. I see a hot spot here, like it's possibly starting to overheat. Entering and bending I'm going to give it, you see, we're going to give them a couple of pushes, one of them moves, both move, let's see if it's possible to get that piston out of there, well, it doesn't have a rod, you just hit the piston, don't feel very united if the fish went to the rocks back and forth ok go there its all the crap on the edge its holding it up yeah it broke to the tip huh the piston dropped the connecting rod he released with a wrist pin .
I don't see much damage there though, but a different one just connected from there, flip the other side. I just took a rag off there real quick. I don't see any damage I mean a little no that's nothing I don't see any hit from a connecting rod at all I'm surprised what that is right there nothing mm-hmm okay let's open up the other side do you see anything over there see if they're bent it looks good i think the hydraulic lifters babies have no adjustment at the top of the hydro cliff that has a little give not much because it's hydraulic but solid just go let's see what the number two SR has to offer for us , don't see me you don't have valve damage either so for anyone yeah I look like a little hotspot I think it might be where the exhaust comes out and maybe it heats up the head a bit let's see if you can get this piston out , its on your side this should stop a piece of rod connected to it but no the rod is in the crankshaft we have to pull the left half of the hammer i hit that would never get hurt but we wont yeah glad That you're over it, yeah it's as spacious as the other hand, uh, they both left the wrist pin, but I didn't. see some real damage like something thread washing took a hit right there, right? take a look at the hole on this one go clean our hole before we look at it looking dirty and it looks like a crack right at the bottom see maybe a little more scoring on this side but nothing definitely more marked was topped line right there but this is the site that didn't have a push bar Fold over I'm not sure why that happened you see that crank I really just chewed to make it look like it's probably okay I'm going to go pull this bar off which is going to be this side for what this side the bar looks good the bar i saw that was a joke looks like a grip on the crank for the other side that had the pushrod bent lets go find sue to get that bar out of there first mm hm look cuz those risers are out but i have some metal dust on top of them it has aluminum one has something in the center of it i have it in the middle many times both lifters are supposed to rotate to prevent that from happening and while they run, nurse moly is supposed to do t What about this one that doesn't have it?
I'm almost ACLU operating as it should. What about an oil pressure problem? Does death decide that the rod is released again? what happens is the burger remnants that are flying now take the other side now plus i guess this was probably running full speed and i did it yeah i was pretty good too it doesn't actually show the same thing you see here it's worn straight across this there's a line there but there's no physical gain on it where the place gobbled them up could we get that cam out now? I just pull towards us a lot of aluminum to see the funky in the lubes see what it is I have like a place where right there this one has a place where on that floor right there the others don't have this one we have to figure out which one had to bend the pushrod again ok let's see how to get up to the bolt if i think the whole boot is g i'm going to remove the flywheel it'll go for that and i want to keep these coils so i want to get them out of here why hmm sometimes they play nice to times you know I don't know who invented these clips probably good for quick factory assembled annoying yeah I'm not a big fan of them you have to go take them apart they call them jesus clips?
It's me, you poor extractor, do you really want to have a good shot or not? Let's run that. We're going to put a big pry bar behind it and hit that with a sledgehammer because I don't think we'll really care about that. it doesn't work they will put a shooter on it but never hit it which anyway now says this is going to work but it helps many times you can see it's a bit of play again even if it has a little bit of play if you shoot of that set towards you and you hit in the center gives a place for the inner shaft to move in compared to just hitting it without it moving away so shut the fuck up on what i'm going to let us remove it i have to remove the coils first break choose to drop brake shoe magnets like a hook these are the magnets for the charging system and they are not glued could this be because i dont think we would hit with a hammer?
I don't see any damage there, so I don't think it did. It has something to do with the failure of him, I think it's probably an after effect, maybe after he blew up he took them out. I also don't know how long he was sitting. I'm sitting for a while as if someone could play with it. later, okay, we get whatever else we need to do to get that crank out. I think the rod might not give us enough room. Let's find out. You can see the carnage. Go clean up a bit and take a better look at the pieces. one thing i notice nover any other governor it's a hot car see we have there's a governor it holds engine rpm it's right here it's got a couple of counterweights and it comes off the cam so it spins off the cam the faster it spins the more these pesos want to throw out, you know if you can see it or not, but how muchmore excited it gets faster, slower, well that kind of makes up for your push on this lever right here at the top.
Can you see the top? Look up if so. Fill in here and this is the link that goes to the carburetors. This maintains the rpm as you increase the revs. The weights come out. Push this and slow down. As speed increases. the RPM's trying to keep up with most of the time in power packs it's not like your car it's not like you're trying to use the accelerator pedal to work your speed you're trying to keep an RPM for whatever the load say yes you have a lawn mower running and the mower is mowing the grass first, it's not mowing any grass and it's just trying to drive across the grass and you - the motors run at 3600 rpm at full throttle and it tries to maintain that rpm if without the governor just cranked it at full throttle it will rev so high it will blow up there is nothing really stopping it from what is max but then the same signal on the other end when you go to load it up and say if you keep it at 3600rpm you're holding the throttle pedal down an eighth of an inch to maintain those rpm as soon as you start the mower deck or drive the mower deck into the thick grass and put a load on it our PM just goes to low there has to be some way for the throttle to come back and adjust to hold that 3600rpm so that's what this whole system does it holds your tape i've seen them down separate before and stick i was thinking possibly maybe the governor will drop it but and usually when that happens this is all busted or seized or stuck in one position or another I don't see it being a case here it must be correct I don't see any missing gear teeth nothing to say you can't override it by grabbing the throttle too because it's a um it's a spring connection between the actual carb and the throttle there's no direct connection there's a link you go through ah ok i don't see anything in the case let's look the oil pan i don't see anything terribly wrong the pump will still spin that's pretty tight that's too tight the oil pump is tighter than it should be and we'll take it apart in a minute it could just be the shit sucked it up when it was good when it blew up no that's not right look that can't a crankshaft doesn't seem to have gotten very hot which is weird usually when our rod goes you see look down again yeah you see what a rod does it gets blue, you can tell if it overheated, that's the wrong one, isn't it?
Where is the correct plug? Do you think there are chances that I have enough snot? I don't believe in these, it's just the end of the casting, you see where some metal doubled up there and oil pressure comes in from the center of the crankshaft well pump. I must say that it pumps oil, there will be a hole right there. pressure goes up that port and then also goes up to test the chamber; yes, I don't see any bluing at all, no signs of overheating. I see where we're loose again and all the aluminum is stuck to it but how look where it's cooked that's a mess huh that would be second in line for the oil pump yeah not that it matters they're literally one side by side that means if they don't see anything with the year let's open that oil pump looks a little sketchy to me go reset it and take that apart you get that pump went out I would say the pump failed she didn't do that too much because do you think i would just take the gear apart right now come on so you need that there yeah the pump runs the oil goes in where it is on the big side and then as you tighten it pushes it to the other side there is the inlet to let off not sure which ones but there will be a pressure regulator if the pressure is too high which will be right here there will be a spring and a plunger and if the pressure gets too high that plunger moves up and the oil can escape, probably from here I could be around here. the other end you know it closes back when the pressure goes back down come on we got a crack going through it again it blew so that could be a problem what's out there is like a line there though i think if the pump failed and locked it up like i said it probably would have taken out that plastic gear that gear and what was removed and i don't see anything like that it turns ok now it's up the squisher old stuff tab on the bottom which is this look where it goes thank you oh yeah i see the output it looks like. it feeds into the oil gallery where the oil filter isn't and probably on its merry way from there got that oil bug twisted maybe I'm going to go find something to twist that oil filter it's nice to have a little oil filter with no covers let you cotter open the filter look what happened to Tripti anywhere we go how else it explodes pour what's in the little metal nothing and I'd say uh huh caused we can get we have to do to get them out of there you have to cut it off new, maybe we can strip it with a couple of wire cutters.
Oh, you only need a couple of folds, really, we don't need to separate everything. doing it on camera i wouldn't exactly say we found huge metal shavings or the whole thing was a flop yeah not sure what got me just a little questioning other than the fact that of course the bar was It caught on the crank and it came right out, Danny, this is the top end, let's just take fractures. due to stress it's not likely what happened was the bar came loose and the bar was set at an angle causing the tops to fail the same way, once I got the other side out this is going to be , we can get a decent piece of the bar here we go definitely could see like two different levels of damage hmm i don't think it ran out and the oil doesn't have that look it doesn't have that overheat look i'm not saying no oil burst i think it was running fine like that's a problem that pushrod bent down when i think about it for a while ok i sure spread across the bench pretty quick didn't i? yeah that's what caused it yeah I just think the crank got a bit ya know the aluminum on the rod digs into the surface of the crank a bit once that happens it just spins and grabs more each time that turns I think essentially what was the fault to the point where yes it's so much and it was running at such high revs that eventually this thing was getting stuck and then the rod just above it failed and it bent or broke and then now it's just hammering around it , just make it into a burger with everything else in there.
Again nothing works at 3600rpm. You need to have a flyer on this. Again, this was either a blower or a vacuum and it also acts as a big flywheel, so it's not like it goes and crashes into things five or ten times that it crashes into things. or you know about two or three thousand times before it finally stops, yeah you can actually see a bit of blue down there. I'm going to hang my hat on again. Also the flywheel that was not off the fan wheel. that was on it you see there is some kind of cobblestone on the end maybe that was unbalanced and was causing it to shake which caused a problem that bent the pushrod.
I don't know why it did it, I don't see any damage to the cylinder heads. I thought a piston went up and stayed way up again because the rod disengaged and then the valve opens but the piston is already in the way and can't so the weakest thing in the link is the pushrod to bend and with the Pistons I don't see any harm where they go what we do with those and of course the bottoms are totally hamburgers and I don't see right there no it's very close to the outside you know right so it's not big huh I would be here somewhere place, right there, usually, when it happens, although the valve will bend and stay open and I'll see that being the case a bit. fun taking the magnets apart again there's also another thing that was a little weird the magnets weren't attached inside the steering wheel but we've done enough damage or mess.
I'm going to go with the crust. Collect the good pieces to put them in a box. Put them up. We still have the other engine which is the same as this but it smokes so possibly some other parts of this see how this video works maybe we'll tear it down find out why it smokes we can possibly fix it or not but just for the purposes of the best friends and just to have fun. I'm a lazy afternoon guys hanging out thanks for hanging out with me and doing some scrap ripping see you later do you think raving up there use the thumbnail

If you have any copyright issue, please Contact