I tipped my mini excavator

[DarkBlack]

If it was hydrolocked and you cranked it, you now have expensive damage, in all likelihood. That bends valves and con rods and can destroy pistons

Valves don’t bend during a hydrolock condition. Connecting rods yes, valves, no

 

[DarkBlack]

I have a mini excavator with a Kubota Z482-EF04 motor. I tipped it on its side today. After I up righted it I tried to start it but it would not turnover, I tried again to start it and it started but its blowing a lot of white smoke. I let it run at idle for about 45 minutes but its still blowing out the white smoke. it starts and rev like normal but when I try to used the hydraulic the motor stalls. Pic attached.

Any ideas.

How long was it on its side before you stood it back up?
45 minutes of running is more than enough to clear any excess diesel, or oil that might have migrated. If it’s smoking like that still, you have something bigger amiss.
Check your engine oil level, and color and smell. Is it getting white or smell like antifreeze?
Check your radiator level. Is it going down?
Start it cold with the radiator cap off. Does antifreeze come shooting out?

 

[WinterDeere]

The OP says it revs normally even while blowing smoke so he may be alright...

OP reports idling fine, but stalling under load:

...when I try to used the hydraulic the motor stalls.

 

[gstrom99]

Bending rods usually happen when fluid is sucked in with the engine running.

I'd bet a donut, that it was running when it tipped. I'd also bet another donut, that the motor is severely damaged now.

 

[hayden]

OP reports idling fine, but stalling under load:

Unfortunately it sounds more and more like it hydrolocked and bent a rod. That would result in low compression in one or more cylinders, incomplete combustion which would explain the continued smoke with diesel smell, and low power because it's down one or more cylinders.

A compression test would likely confirm the theory and require the least disassembly.

 

[hayden]

BTW, this might be a legitimate insurance claim, if it's insured.

 

[4570Man]

I'd bet a donut, that it was running, when it tipped. I'd also bet another donut, that the motor is severely damaged now.

It very well might be but I’d pay admission to watch a starter motor bend a connecting rod like many claim is possible.

 

[MinnesotaEric]

Next time turn the engine over with a wrench, not the starter.

 

[Dftodd]

By far the most likely is the starter motor stalls and nothing happens. If the engine was still running when it flipped that’s when bad things happened. It was start starved for oil and any number of bad things could have happened or it could’ve sucked oil bad things happened.

Starter motor stalled the first couple tries when the OP tried to start it.

Third try, it fired.

That excess fuel/ oil in the cylinder compresses against the valve preventing it from opening.

Thats how it gets bent.

 

[Dftodd]

It very well might be but I’d pay admission to watch a starter motor bend a connecting rod like many claim is possible.

It's not the starter motor bending a rod. It's another cylinder firing and bending the compressed rod in another cylinder.