Well idk why I can't comment normally so I'll Wright my comment on yours as a reply sorry bout that. That looks like someone put a Kubota kit motor in at some point I don't think that's the original motor it sounds like a tired engine and injection pump
In working on old GM diesels in the 80's, I would suggest that the rings are stuck. That would account for the terrible blow-by and no compression. It would also explain excessive oil levels as diesel is passing by the rings and filling up the pan. If the diesel didn't ruin your bearings, just putting rings in it and redo of the valves might be the cheapest fix. Best of success to you Mustie. If anyone can fix this neglected beast it's you.
Old screaming jimmies? Man those things sounded great. I genuinely fear for Mustie if he ever gets his hands on one and doesn't realize he needs to make sure the injector racks aren't stuck before he starts one that's laid up, though. As for this Bobcat's engine...if it really is just stuck rings a little heat and finding a way to crank it at a running speed until it starts might do the trick. HAve seen a fair few vintage cars that would never start by cranking start by being flat towed while in gear, and then once they get a couple heat cycles in them, the rings free off and they'll start by cranking. Can't do the flat tow trick on a Bobcat as they're hydraulic drive, but perhaps some other means of cranking the engine at a run speed might get it to light off?
I've owned several vintage bobcats. Just remember: If there's no oil under them, there's no oil in them. Bobcats are ALWAYS leaking in my experience. I look forward to the updates.
*Just* like a Detroit, *another Detroit saying is* if there’s not enough oil on the ground to step in as you enter the machine it’s ok. Had to edit this comment from its original, the short verse was incorrect, I made a mistake and it upset eric (actually spelled with a K) Larson. Sorry for any other feelings I’ve hurt, and entire weeks I’ve ruined
My early 80's 620 has a Ford pinto gasoline engine in it. It competes with the pump on which one can leak the most oil. I have five kids. I think I won. Probably not. :)
@@Ason1974 i agree, alot of cranking to get it running and the diesel pouring through the rings. Landrovers also always leak, if there is no oil underneath it then it's out of it.
Hey there Mustie. To check the compression. You can use the glow plug access hole as those other narrow fitting in the kit are there to go into the glow plug holes. So you don't need to take the injectors out to check the compression. Can't wait to see you get this one going as I'm not use to seeing you work on diesel. But in your case I'll give you 90 percent chance of getting it going. The challenge is on you getting it going.. All the best..🤞🤞👍👍
You saved me from posting. I used to work on early GM light duty diesels at the dealership. They also used a luminous probe in the glow plug port to set injection timing while the engine is running. Probe would let you see the combustion flash while running.
On my Mercedes there was a brass seat that had to be replaced every time you took out the injectors. PIA so I can see why using the glow plug ports would be better. As long as they haven’t overheated and expanded so they can come out without breaking. Nothing but potential problems.
The Kubota 3 cylinder is either a D600, D640, or possibly a D722. They require the glow plug to start unless the engine is at operating temp. Since you have fuel from all three ports in the injection pump, you are correct that the problem is most likely compression. You'll probably find that the rings are shot but the bores will ok unless scored. Also a possibility is a blown head gasket. I've had a lot of experience with these little engines and have turbo charged several for use in Cub Cadet garden tractors. The 600 and 640 came stock in several models of Cub tractors. If I can help in any way, reach out with a reply and we can figure out how to get in contact. I'm in upstate NY.
Здравствуйте! Скажите пожалуйста сломало распредвал на моторе кубота v1500 четырех цилиндровый мотор, распредвал восстановили но не попали по меткам , как выставить распредвал правильно без метки? У меня бобкат TCM 725
If that's a Kubota D1105, those are the same engine that was used in the Terex light towers that were everywhere. You can usually pick them up at Ritchie Bros for less than 1K running. Compression should be around 400-460 psi, and valve clearance about 6 thou. The compression tester has to be tight- can't be hand tight like a gas engine. Lowest compression in the middle- I'd pull the head and inspect the head gasket, especially if you suspect it has overheated- which is very possible given the additions to the cooling system. The unit is in good shape for it's age, and these little Kubota's can be found everywhere. Don't know if these have a paper filter, or oil bath air filter, but if oil bath it could have been overfilled, causing the oil in the intake. Get all that oil out, or the engine could run away shortly, once you get it running and the intake suction pulls it into the engine.
Except MacGyver doesn't daily-drive junk, he only uses Macgyver'ed junk to get out of a scrape and save everyone. But I get what you're saying. 😀He usually drove that brown Jeep Wrangler but he also drove a Jeep Grand Wagoneer, a Jeep Cherokee Chief, but the 1946 Chevrolet pick-up truck was my fave--that thing was MINT.
Hey @mustie1, here's a tip from personal Bobcat experience. The fuel cutoff is run by a two coil solenoid. Your solenoid shaft is disconnected where they ran a "manual" cable. Normally when you turn the key on, it triggers two relays, one 5 second relay and one continuous relay. The 5 second relay activates the main coil in the solenoid body that pulls in the solenoid shaft then shuts off after 5 seconds to keep the coil from burning up. The continuous relay engages a coil in the end of the solenoid to hold the shaft once it's pulled in. When you shut off the key, the coil dies and the shaft extends. That's how the shutoff normally works on Bobcat diesels.
Hi Mustie, I've worked on these engines for over 10 years. Where the injection pump mounts on the block there should be a machined pad with the model and serial number stamped on it, the model number is also cast onto the side of the block under the exhaust. Parts are a bit pricey. Don't use ether starting fluid, it tends to break rods & crack pistons on these engines. A valve job, new rings & rod bearings bearings will probably get it running fairly well. Good Luck.
probably needs a cam too tho. Possibly worn out because diesel has leaked past the rings, causing excessive valve play. Cams are usually case hardened, so once you wear through the thin outer layer they're scrap.
goway with your ether nonsense... its not going to harm the engine its fine with glowplugs, its gridheaters either doesnt agree with and thats more for the sake of the operators eyebrows than the engines internals
One thing for certain....you definitely aren't the first person to rummage around in that engine compartment...good luck with sorting it out...hopefully we be treated to a part 2 video on this...😊👍
Man, you just never know what Mustie will dive into next, lol. Good stuff! That motor appears to be abused and worn out, BUT don't give up on it quite yet. Here's some things I've picked up working on very similar D-600 and D-640 3-cyl Kubotas in Cub Cadet tractors: -The gallopy cranking sound is pretty normal - Like a bunch of guys have said, the compression adapter goes into the glow plug hole. -The adapter needs to be tight, not just finger tight. Tiny leaks make a big difference in readings. Be sure to torque the injectors properly, too. -For some reason, they just will not fire on ether, in my experience. No clue as to why. -They are particular about valve adjustment. Get the valves set, then do a compression test. -They like LOTS of glow plug, regardless of ambient temperature. They won't even try to fire without the glow plugs. Again, in my experience. -All of the glow plugs need to be good, test them individually. I've been fooled or misled by all of these things before getting to know the quirks of those engines. I really hope this helps.
I remember a video that had Mustie trying to start two different Kubota engines without glowing them and each time it sounds absolutely horrible, I think you're spot on about that! Wonder if the glowplugs are 12 V or whether they need a ballast resistor though, some car manufacturers did stuff like that.
@@Ragnar8504 On the Cub Cadets (Kubota supplied wiring harness) they used 6 or 9V glow plugs and ran them through a glow plug indicator which also current limited the plugs. This drove the glow plugs a few volts high. A real common mod is to run 12V glow plugs via a relay to take the GP current away from the $90+ ignition switch and save on the little garden tractor battery.
@@Hjerte_Verke Larger diesel engines will fire on almost anything flammable. Ether, lacquer thinner, gasoline fumes, spray paint propellant, etc. Many diesel trucks and heavy equipment in the 60-80's had automatic ether injection as a cold start aid.
" They like LOTS of glow plug, regardless of ambient temperature. They won't even try to fire without the glow plugs. Again, in my experience. " ... They LOVE to kill the battery without them. 🙄
I'm sure you could hear us yelling at you. If it has glowplugs, you can remove them and use the "F" adapter to test the compression. No need to pull the injectors. Same on my Yanmar 3 cyl. diesel. I think you should do a valve job on it and see if that brings back the compression you need.
@@dans_Learning_Curve for small personal usage a would definitely try to make it run as is even better knowing 2 people couldn't get it to run if it eventually run
I smell a Part 2 coming! She's a tired old girl ... and whoever ran it last had too much money!!! Not sure I've ever seen a Bobcat that wasn't running on colored fuel! I'm no expert, but being that over full of oil can cause it's own issues too. Thanks for sharing 🇨🇦
All the best Mustie series start like that, don't they... "Is he insane?! That thing is utter junk!"... and by the end, you're thinking "What an awesome machine!"
Hi Mustie - Just saying that I look forward to your posts every week. Feels like I get to hang out with my dad and grandpa in the garage again. My dad is also the VP of his local VW club and shares your love of air-cooled engines. I have used many of your small engine videos to learn how these things work and to do my own repairs when building up my own homestead. Today's society just throws everything away and the hippie in me likes to know we can keep these things out of the scrapyard and put them to use once again. Good luck with the Bobcat, I know you'll figure it out in Pt 2.
Way back in time, around 1970 at Wentworth Institute, one of the most challenging labs I had was to rebuild the injectors off of a big CAT diesel engine. Lining up petri dishes with varying grades of oil we would disassemble the injector, clean the many little parts, reassemble, and then go to the pressure tester to grade our work. As I recall,,, my injector never passed that pressure test. Good luck Mustie, but if anybody can make things work, it's you.
The easier way to have checked compression would’ve been to remove the glow plugs and use the adapter that is the correct size for that. Also, if it’s a kubota engine, the engine model and serial number should be stamped into the block right where the injection pump is. Great video and good luck!
I was looking for this comment about the compression test. It also looks like the high pressure injection pump is toast. Supposed to see something like >1000 psi at the injectors ? Maybe rings bad and valves not adjusted properly but didn't look like you did that compression test properly. I don't think it's dead. I think it's that injector pump.
@@mountainjeff there is no resisstance so it cant build pressure, also it should have fired with the starter fluid and the obvius blowby indicate worn engine.
@@osbberjen I was getting a bit nervous with the amount of starting fluid he was using! Then to top it off, adding the glow plugs! If that engine had good compression, I don't think it would have survived that amount of starting fluid.
@@mountainjeff it would have started with starting fluid if it was the fuel pump The valve look way out of spec The pump look suspicious maybe something to do with the shut off And you can see smoke being produced so it got some compression more that is test show because he was supposed to remove the glow plug and use the adapter specified for kubota would have probably worked t dont need not much more to start use the block heater to heat the coolant and a heat gun to feed hot air in the intake to get it to start And judging by the oil lever it must contain some fuel and washed the cylinder wall lowering the compression even more so a ool change could help
@@osbberjen you can see some pressure building when he blocked the line with is finger and is really dangerous he lucky the pump can build like 15 000 psi and would have resulted in a fluid injection injury he could easily have lost his finger Never do this just loosen the nut and break the bond on the line tapper by wiggling or tapping it with a wrench the fuel will escape between the nut and fuel tube
I have the 542 version of that skidsteer. Only difference between 542 and 642 is the motor. Mine was a Ford Industrial Gasoline. I abandoned that and replaced with a Duromax 713CC. Took me maybe 8 hours to build motor mounts and a coupling for the hydraulics (all with parts from Tractor supply)!. Its now a very usable skidsteer. I actually spent the weekend knocking down trees and building trails on my property. P.S. The door isn't missing, it did not come with one and it was an option (very expensive option).
I have a 2018 JD 324E and I envy the simplicity to work on the one you have. You have a solid machine. I found an excuse to buy mine and love it. We had trees go down and I heard it running outside and wife had jumped in it and was moving the huge trees, she came in and said worth every penny we are never selling it. I believe it may have replaced me!
It is in pretty good shape except for the engine. even with the body having a fresh coat of white paint, you can tell the body is not corroded and rusting through the paint. They must have built those things with a high quality steel that isn't prone to rusting.
Hey mustie I beleive that is a kubota d662 engine, parts are readily available and they are easy to work on, you can get a whole rebuild kit with sleeves and all, you can check the compression through the glow plug hole, those are very good engines
I love Bobcats. Especially the one's with a turbo and a snowblower. Great fun. I spent so many hours in ND clearing snow from access roads. The controls make it a joy to operate.
That's the same model bobcat I started my heavy equipment career with 35 years ago, that machine afforded me my six figure income, fun times. You can use the glow plug ports to check compression instead of removing the injectors, much easier that way. Too bad it's just a tired ol' girl, give her a new ticker as I'm sure you can get her going, great vid as always.
On one hand, I think the factory designers knew what they were doing, so this should be de-modified and returned to stock. But we're WAY past that point. Somebody went to all that trouble to make this a diesel, and that's fricking awesome. And Mustie1 doesn't do "stock" anyways. I think rebuilding the existing engine would be the best option. It respects the original mad scientist, it respects Mustie1's style, and it would make for some really good content.
I Absolutely LOVE this channel !!! Awesome learning all this super Invaluable Tinkering skills that just aren’t taught anywhere, I say find an engine & Swap it out !! You know you’re gonna LOVE driving that lil monster around, when it’s all fixed up 😎👍
you check the compression at the glow plug holes. Looks like checking the headgasket may be an option. Cylinders appear to be washed down by the amount of fuel going past the rings and the back up into the intake. That would explain why the intake had fuel in it. borescope the piston while the injectors are out and that will tell you a lot as well.
I love Bobcats. Has to be the landscape creator's dream. So versatile, and even so fun! Mustie1 getting the adventure going on every outdoorsman adventure motor. Mustie1 will get it to go. It just doesn't know it yet! As always, good as used, and safety 3rd. Mustie1 way. Good seeing you Darren.
31:52 the throttle doesn't matter. Diesel engines have a governor built into their injection pumps and at cranking speed, even with the throttle at idle, it's going to be at full fuel because the governor speed is below where the injection pump wants it to be. They crank at full blast and then when they start they immediately whoa themselves up a bit. Hopefully. Unless it's a 2-stroke Detroit with stuck racks. Side note, if you ever do get a 2-stroke Detroit in the shop, DO NOT TRY TO START IT WITHOUT FREEING UP ALL THE INJECTORS! That's how they run away on ya. They park themselves at full fuel and then over time the racks just stick there. Someone not knowing what they're doing then comes along, gets it turning, thinks 'oh hey we're in the money', puts fuel to it, whiffs some cosby sauce down its throat, and then it fucks off to low earth orbit as soon as it lights off. Earlier model detroits will have all injectors on a rack stuck at full fuel if even one injector is gummed up, later models only that injector will be stuck at full fuel. And if one ever does run away,...any diesel engine even the little kubota in this Bobcat...a board across the intake will shut them off handily.
Just letting you know you should keep your fingers away from the injection lines while your cranking the engine. The extreme pressure created by the injection pump and inject fuel into your bloodstream and cause a very painful reaction and possible death. Just don’t want to see you get hurt.
Every time I’ve started this (3 times) Lol I’ve fallen asleep after 5 minutes due to long days. Finally watched it all the way through while being awake and I was able to hit the like button!! Another great one @Mustie1
Engine swap would be the thing to go for, also then you'll know what's in there and what parts will fit...the coupler would be one of my lesser concerns, there's always someonewith a lathe who could make things fit... Looks like a upcoming video series, great! 👍👍👍
I had to have a new water line from the street to the house. The guy came with a full sized backhoe and really did a number on the lawn and shrubs. A year later a neighbor had a line out in and used a bobcat. Perfect for the job.
The second you cranked it and also shot ether I knew it was rings due to overheating. Happens every so often with these engines, recently put a new crate engine in a pressure washer as that was the cheapest option. Chances are the hour meter isn't even hooked up to power or broken. Key should be able to turn counterclockwise from the off position for a factory bobcat for pre heating with the glow plugs if there is no button for it.
Man, that is a nifty trailer. I’ve seen them tilt, I’ve seen dove tails, but never seen one that done that. I bet that trailer comes in handy a lot. Especially if you have to move someone.
If i remember right, a lot of the older skid steers had V4 Wisconsin engines in them. The idea was that farmers were fairly used to those air cooled engines as they came on just about every non implement pulling powered equipment. I think they had a bad problem of overheating though.
Hi Mustie , I would suggest you take out the engine and start tearing its head apart since there is a good chance the head gasket is gone.If you manage to find parts go ahead and rebuild it since old mechanically injected diesels are hard to come by nowadays ( safekeep the spare one you already have for future needs) .Light air cooled engines are unsuitable since you need a heavy engine at the back regardless. Also , as others said , you should have used the glow plug adapter for your compression check.Whichever the case , I would advise you to rubber mount the engine you end up using . Good Luck !!
If you pulled the glow plugs the compression tester would fit. Info for next time. Also, when it will not start on ether and chugs white smoke and you can hear only 1 good compression stroke out of 3, pulling the valve cover earlier would have shown all the blow by. I agree that someone ran the engine really hot by the evidence of the cobbled up cooling system mess and exhaust pipe delete. Pull th3 engine, pull the head and you probably will see what needs to be replaced. Hardest part is deciding how much hassle it will be to rebuild rather than just put a good compression engine in there. And no Mustie, a VW engine will not work well on the machine..... but wouldn't be surprised if you do it and it works.
Pull the glow plugs to test compression! Should be an adapter in there for it. I was yelling out my window here in southern maine hoping you could hear me hahaha
Seems like a perfect project ... you obviously have plenty of options to re-power it. The wiring is all spaghetti anyway ... pull the anchor out of the beast and see what room you have with everything out of the way. We all have faith in you and your ability ... I'm sure that there is an old ford Pinto out there somewhere just dying to donate a 1600 cc motor!!!
I almost cut to the end to see if you made it run, but decided to stay with the story and wasn't really disappointed. If it won't run in your care, there is something really serious wrong with it. It was still fun to ride with you finding the issue. I always learn something anyway.
Yeah, they painted it before selling but then again it isn't rusting through the Rustoleum spray paint (yet) nor is it bashed to death on the exterior. It's in great cosmetic shape despite the seat, the hasty rat's nest wiring and so forth
I really want a Bobcat type machine. Yes, I need a skid Steer like a root canal. Not the machine itself, but the pain and suffering that goes along with owning one.
They are not terrible machines, you don't have to like remove the bucket and lift arms, or remove major subassemblies to get to the motor. They are a well-designed piece of heavy equipment, so much so that there are many copies of Bobcats with multiple names and from multiple manufacturers. The skid steer is genius too because it doesn't require a cumbersome steering wheel and all the linkages and complexity.
On a diesel you mostly check compression on the glow plugs, that would be one of the slim long adapters, i would think you lost a lot compression on your adapter 😆
Impassioned plea; don't let it die! Naw, your choice. They can be mighty handy to have around, and a lot of fun too. Fix or trash, either way know that we love you and your channel. 👨🔧
Great video Mustie ,I reckon that with the radiator where it was and the exhaust firing into the engine bay it probably cooked itself hard ,I think that generator engine might be a good candidate or and this is a big or a junked kubota or small tractor,great video once again 👍👍
my friend had the same engine and the same problem. the muffler was almost blocked and it had caused the piston rings to seize. low compressions and also leakage into the crankcase. new piston rings and cylinder honing were enough to repair. at the same time the bearings were renewed.
When it didn't "pop" with the starting fluid , I knew it was bad. There's no telling how many hours are on that engine. Be great content to see it re-powered cheaply with something you already have in your shop.
Yeah, the meter said what, 2,700 hours. How bout 12,700, or 22,700? Those little diesels make like 20 or 40 HP, and technically seem run forever, if he doesn't find a quick fix with the rings or pumps or whatever, he can swap a rebuilt out for 5 grand, or find a pull for way less than that. I'm rooting for him to put a tesla or hellcat powertrain into it. First 150 mph, 700 HP skiddie! Internet history being made!
I've got a 463 and I gotta tell you, except for slippery inclines, that little buggy is a trooper. Amazing how often I use it because of the compact size, it just gets into everywhere you might need a bit of muscle. Definitely a learning curve for keeping them on all 4 wheels though.
The only way to kill a Diesel engine is to cut the fuel supply and Mustie got that covered (cable running to the cab). If you've got compression, rotation, air and fuel a Diesel engine should start or at least cough a tiny little bit.
If that was an old saxophone (my specialty 😂) I would probably want to do a complete overhaul returning it to OEM specs as close as possible. That would be expensive and time consuming. It really looks like it has seen a lot of use and as Darren said not much love. The engine sounds like it needs a ring job. 😮
A new wave theater fact-let. WHen Bob Seeger came to Portland Oregon at the Coliseum in the late seventies, my buddy brought along his M-80s and would light them and toss them in a ballistic arc in an attemp to land in Seeger's Saxophonists' blow hole. He did not succeed and the Sax player had the good sense to back away from the front of the state.I'm sure this is not the ONLY time that's ever happened at a rock concert with a saxophonist.
@@silasmarner7586 one of my sax player friends was playing a political event long ago and a guy came up and used the bell of his sax as an ashtray. Let’s just say there was trouble lol.
Good to see you tackle some big stuff again. Beats lawn mowers I think. Thank you for posting so many wonderful vids. Perhaps another vintage UK car?Best from the UK.
I've never operated a diesel Bobcat and it doesn't look like it's missing anything on the front like you originally mentioned. That's just how they are. They are fun to operate and will do a lot of work in a short time because of their nimble maneuverability.
Respectfully we all know Mustie1, and can guess what he paid . . He'll do worse on a bad trash-night pick compared to parting out this POS. Plus, when he co-labs with Rich or Tavarish or somebody to swap some tesla or hellcat or supercar powertrain into it, he'll be rolling in some of that sweet ball-hair trimmer sponsorships money, assuming he survives taking a 40 year old skiddie up to 140 MPH in 6 seconds on the local drag track.
After watching this, if anyone could make this work, it would be you for sure. I wonder if it ever ran on that engine, but i would like to see you either change it back to a gas engine, or maybe rebuild that engine if it is worth rebuilding. I have seen some of those bobcats with the rear door all smashed up, and lots of rust. The good thing about this unit, is that it doesn't have all the digital stuff that fails quite often on these unit's. The only down, which i could see you fixing, is the quick change being welded on. You can put so many different useful attachments on these skid steers, and that would be cool. A lot of work would be needed to get this right, so i wouldn't blame ya if you kicked this down the road, so good luck, and G-d bless.
