RUNAWAY DIESEL ! Wouldn't Start Now It Won't Stop! Kubota Mini Excavator
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- เผยแพร่เมื่อ 11 ม.ค. 2024
- The second episode in saving the Kubota Mini Excavator from the scrap pile!
Things got pretty interesting in this one. Hope you Enjoy!
We explain some techniques to free off seized piston rings and put them to the test. We also perform an in situ test to confirm glowplug serviceability.
Things are looking up for the Old Girl!
Link to part 1:
Destined for scrap! Can we save it? Kubota mini Excavator
• Destined for scrap! Ca...
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#kubota #excavator #miniexcavator #diesel #runaway #injectionpump #mechanic #restoration #rustnrestoration #vlog - ยานยนต์และพาหนะ
Awsome video fellas, look forward to the next one.👍
Cheers Rob, think the lever for the throttle had been left in the fully open position by somebody else who tried starting it years ago! The dangers of starting a machine which has been left for years, looked like it was working but the internals must be stuck, more investigation work needed, stay tuned thanks for your continued support👍
Wow interesting guys
Thanks! Hope you found some good informative content in the video👍
Love it, "That was a bit spicy guys"!. Pass me the heartburn tablets. 😂She was in self destruct mode then😮
Great work again boys, keep the videos coming, very informative.👍🏼
Glad you enjoyed and it was heart in mouth moment with feeling of helplessness and panic and despair all rolled into one! 🙈
black smoke = stuck on full trottle.
I use a piece of wood over the intake to stop run away issues. Also pull out the engine to work on it to make it easier . We had a stuck engine on the Cat 951 that not been run for 15 years. We ended up doing a rebuild in the end. We found that a pump barrel segment was stuck stopping the rack from moving. Waiting for better weather to refit pump segments .
I've worked around many of those small Koboata diesels and they are super tough. Going full rack and running at valve float RPM's for hours on end doesn't even bother them.
I've seen many do it due to the rack linkage or springs in the governor breaking and surviving being run like that for days just fine.
Thanks tcmtech, that’s good to know and we were wondering if it may have caused any damage, we will revisit it and try to investigate and free the rack off if it’s stuck👍
It will be great to see the we digger dig again under its own steam
Thanks! Fingers crossed we can get it sorted and show it moving as long as the hydraulic pipes hold out!
Marvel mystery oil could possibly help y'all out with that Kubota Diesel engine stuck valve's and rocker arms and lifters to.
american snake oil 💩
more rattles per can
Didn't seem smokey enough for running away on the oil imo.
Yes thinking stuck fuel rack now👍
Yes! On part 3! Stuck governor sounds right.
Thanks! We’ll investigate further so keep an eye out for an update👍
Just stick a blowlamp in the intake for a good pre-heat
Would agree that a check of the injector pump is the next course of action..
I think running at that speed would have definitely freed up the rings!
There was a fair bit of stuff blown out when it raced away so hopefully it’s released the piston rings of they were stuck, keep tuned for an update👍
Think you might be right about the stuck rack. When running away on oil the smoke is usually much more grey, where as here it is quite dark.
Exactly what I thought when I watched the footage back. Didn't notice at the time but definately going to check the pump out next.
You can mix it in with your transmission fluid and acetone mixture to. It's known for freeing up stuck Piston oil rings and other types of things like that to. For instance let's say such as oil pumps and fuel pumps and stuck fuel injectors and fuel racks.
Thanks! I saw a test online and it gave the best results and most success on releasing rusty bolts etc👍
check the fuel pump it might be the rack or a stuck linkage
You put 20ml of engine oil in each cylinder and then were surprised when it ran away.
A diesel will run for about as long as it did on 60ml especially when mixed with the diesel. I wonder how much oil and diesel was sat in the dish on the piston?
We knew it was a possibility. After looking at the footage I'm pretty sure it wasn't running on oil, certainly not towards the end. Had I realised at the time how black the smoke was I would have cracked the injector lines off which would have given us the definitive answer. There wouldn't have been much diesel in there, we spun it over with the injectors out to clear the bores and the lines were cracked off up until the point it started to pick up on ether
Defo spicy that startup, isn't the kubota engine a relative of the Yanmar 3 te series? if you're gonna look at the pump (on Yanmars i've always found it's the governor that gets stuck) it looks like it's cab off time, would be good if we could see how big and what shape the hydraulic tank is (would give more access to the engine as well) as we might have a hydraulic tank knocking about that might be suitable if you want one.
Thanks Steve! Yes the hydraulic tank is ready to come off and we were in the process of removing it but the bolts are in such bad shape we had to abandon removal to be revisited, have you got a tank off a Kubota that may be suitable? We were going to repair this one but may save time if one is available👍
@@RustNRestoration Hiya, no we haven't got a Kubota tank but we've got various rectangular tanks off various machines we've dismantled and a mate who has a scrap metal business (when he clears places anything he thinks is salvageable he offers it to us) might have something suitable if we know what it looks like and approximate size, hope that helps.
Thanks Steve, it’s a unique shaped tank and think it will have to be like for like if we replace it, we’ll assess the possibility of repair or replace when we get it off, thanks for the offer and it may be an option if we can’t get one👍
The rack is stuck
*Promo sm* 🍀