Great description of the diesel motor and how it works . Just a little too simple for the average home owner . You are very skilled at mechanical work. Thanks
I ended up swapping my injector pump for a known good pump and now the engine runs great. I went on to completely dismantle the original pump, and lapped the mating surfaces with diamond lapping compound. That pump works now too. Thanks for the encouragement.
@@ryy597 I had two engines (in light towers). One ran great, the other one barely ran and smoked alot. I swapped fuel pumps, no difference. Swapped filters, fuel and air, no difference, finally, I swapped the injector pumps and the problem moved from one engine to the other.
I had to replace the injection pump on my bobcat 463. Same engine as here. A rebuilt pump cost about $350. Bobcat wanted over $3,000 to do the job. Took me about 2 hours
I have a F2880 mower with the D1105 diesel and it has started the blueish smoke and low power. Thought it might be injectors but this seams more accurate. I am no way a mechanic, so your video here has helped me.
The injection timing is set by adding or subtracting the shims under the injection pump. This Kubota has fixed timing like most lawnmower gas engines. A lot of automotive diesel injection pumps have variable injection timing. I installed a Kubota 905 diesel in a Geo Metro and it had driveability issues because of the fixed injection timing.
I was thinking about doing the same, 3cyl kubota in a geo , did you ever get it right? How is the power? Could a turbo be added? Milage? Thanks would appreciate some info, did you build a adapter?
@@redfuel6bt Power...terrible. Going from 54 hp to 24 hp makes it a flat land vehicle only. I forgot about the car long ago but still have it. It's not a simple swap at all. Nothing fits. I built the adapter, modified a Suzuki Swift flywheel, clutch, starter, and had to make a vacuum pump to work the brakes. The oil pan hangs low and needs mods to provide clearance. The worst part is that the oil filter is exactly in the way of the right axle. A complex adapter needed to be made to switch it over to the front side of the engine. The fixed timing injection pump makes driveability poor. The governor had to be modified to hit 3600 rpm from fixed 1800. When you were ready to shift and hit 3600, the power cut back completely. But it got around 70mpg during the week I tested it. The registration expired and California would not renew it without the original engine. I have a turbo but it still sits on a shelf. I used to build random things like that but nearing age 70, no longer have the interest. I build solar generators for fun now.
@@redfuel6bt Here it is....built 14 years ago! th-cam.com/video/hnAOF1bOSB8/w-d-xo.html Here's another random video from 2016 when someone bet me it wouldn't start. th-cam.com/video/BhBKLahX6_0/w-d-xo.html
@@redfuel6bt Since you clearly like Cummins and off road.... here's my boat after converting it from a slow inboard to a stern drive with Chevy 6.5 turbo diesel. I still have the boat in storage and doubt that I'll ever run it again. Boats were fun for years but I'm over it. Note the air horn dongle. It once hung from a friend's Dodge Cummins before he rolled it 3 or 4 times. The old Perkins 47 horsepower diesel that came out of the boat went into her old wooden 28 foot Tollycraft cabin cruiser...very slow, 8mph, but got us around the NorCal Delta at 1.25 gallons per hour. That's cheap boating. th-cam.com/video/cDyQ_VeZKx0/w-d-xo.html
Nice video. Wish I found this prior to diving into my pump. Similar kubota 3 cylinder in a jacobson turfcat. Hadn't ran in 10+ years, water in the fuel. I pulled the injector pump out. I was difficult to get out because the throttle slider was frozen and it ended up breaking on the gears that rotates the plunger inside. (slightly older design to yours). Called kubota, they tell me that dont sell parts for the pump but they would end up sending it to a diesel shop like D&W. These guys were great. Similar problem with finding parts, I send in some pictures of the pump and have the parts the next day. Got the thing running after a bit of time. Wish there were some videos of pump assembly, trade secrets i believe. Hi from Alden
I would recommend always adjusting the valve lash if you have removed the head or rocker assembly even if you keep the push rods in the same locations, it never a good idea to assume the valve lash is correct.
thank you I have a D1105-e but I think this would help bc they are very similar engines and the injection pumps look and operate very similarly so thank you
Hay Pete I have a Bx 2350 and on my number one injector line I cracked it loose to see if I was getting fuel so I tiended it back and now it won't stop leaking it drips
I had a power loss problem I found number 3 cylinder (that's the cylinder if your standing in front of the engine looking toward the rear of the engine), was dead, and also had a loud clatter noise in the rear of the engine. I pulled the injector out of number 3 cylinder and done a compression test which resulted in a real low compression reading. Just for the fun of it I took a piece of bailing wire about a foot long and lowered it into the cylinder until it touched the top of the piston then I reached around to the front of the engine and grabbed the pulley and turned the pulley back and forth and found I had to turn the pulley as much as two inches in either direction to get any response out of the piston. Immediately I knew where the clattering was coming from and the cause of the misfire and low compression. So I pulled the oil pan off and found the rod bearing had spun and the rod itself was bent in the number 3 cylinder. So at this time I'm in the middle of rebuilding it. Just wanted to share my story on how I diagnosed my engine problems.
@@justinlafon1953 just for anyone wandering along after, you can buy the pump rebuild kits on ebay now, search for "Overhaul repair kit for 3 cylinder NP-PFR3KD50, NP-PFR3KD55, NP-PFR3KX55 " - I just bought one ready to sort my D1105 out for the same issue.
Diesel engines are considered industrial. I would have rebuilt the pump, but the part numbers are not made available and parts are impossible to find without being a distributor. It's kind of a huge money racket.
Also the separate pumps have to be calibrated so that they pump the same amount of fuel per stroke, and without a service manual for the PUMP it is very difficult to get it right. Best to have it overhauled by a shop that specializes in fuel pumps, or do as Pete did and just buy a new one.
I had this same issue with my pump. I took the pump to my local tractor supply. they swapped it from a rebuild they had on the shelf. $125 bucks after core. I was out the door 15 min, back to mowing in about an hour.
Petes Garage i wouldnt have trusted just replacing the 1 broken spring either, highly possible and probable that the other two springs would go bad too, so i agree you made the right desicion in putting a whole new pump on
You'd have to do the valve adjustment anyway, the head gasket wouldn't necessarily be exactly the same height and will affect the distance from the camshaft to the rockers
For ref the pumps / heads are shimmed for engagement...we used to produce these under licence as a Perkins compact engine and the engagement depth varied from engine to engine...you got luck here but could have easy over fuelled
i have an f2000 with a d950 motor. i recently had similar issues with smoke and diminished power. just to see what would happen i added sea foam and hoped it was a stuck injector. 15 mins later it returned to normal power with no smoke. i got lucky but more times than not start with the simple things first. nice video thx.
Interesting video Pete. I've acquired an engine in the same range to rebuild in part for entertainment and also to do an engine rebuild video for my channel (and have found the workshop manuals online). Just a point of note that the D902 is one out of a series of similar engines, including the one I bought (a D662), D722 and the D902. They seem to also use the same pumps on engines like the Perkins K103-07 3 cylinder diesel (Which I've also bought). Presumably the same issue would apply to those and indeed all similar diesels.
Your video is wonderful. I found it by accident and it was very well done. I have a Kubota RTV and I have questions about the hydrostatic transmission if you work on them I would love to see a video on it.
@@PetesGarage - Any chance you still have that part number? I haven't pulled my pump yet to confirm it, but my bx2200 is smoking and down on power as of today, I just replaced my 3rd hydraulic hose in a week and now it's not running right.
I have an issue with an exmark that has this issue. Someone rubuilt the blown motor and it has never started since ill be running some tests tomorrow. The theory there was more than likely a fuel issue before and someone tried to start it with ether and blew a rod out-of the side of the block. I just hope the guy rebuilt it correctly.
Bonjour, merci pour l'astuce 😉 Je viens de récupérer un moteur Kubota D950, qui ne fonctionne plus avec plus de 6400 heures. Le moteur n'est pas bloqué, je vais devoir déculasser pour connaître la panne. Encore merci pour vos astuces 😉
I was watching your video and thanks for doing it. My G4200 started with a leak on the manifold for the injection pump. I replaced the gasket but still had the same leak plus picked up a leak on one of the injectors. I replaced the two "O" rings on the injector and installed another gasket. I still have the leak, it loks like it might be oil with gas coming out. The motor tries to start a little but never does run plus the leak comes out at the gasket. Is there a chance that I am pressurizing the motor due to an injection pump leak and forcing the oil-gas out? Hopefully you will have the time to assist me.
Great job!! Do I need to re time the pump after reinstalling? Because I'm working on one after some one tried working on it and I'm not seeing a timing mark.
Great video.. Ive got a 12 valve, but unsure if I want a kubota diesel. How many hours were on this engine and do you think its a good choice for a residential yard engine?
I've looked at those Mercedes engines plenty. There is nowhere even close to the aftermarket that there is for VW TDIs. Plus, in my engine compartment, that means lots of cutting and welding and custom fabbing.
We have the exact same machine SCAG Turf Tiger II with Kubota. It blew the head gasket once and even cracked the top due to overheating. Now maybe it has done it agian. It keeps overheating almost immidiately. What can be wrong?
I have a similar issue with my mahindra 2015HST. I’ve replaced the injectors without improvements. Next is the solenoid fuel pump, which I’m going today. I will also clean the fuel tank when I do that. If it doesn’t change anything though, I will break into the injection pump and change the head gasket while I’m at it. My only fear is valve clearance. I know nothing about it and I’m worried about screwing it up when I reassemble it. Do you have any advice here?
Hi, thanks for detailed video. I had a problem in my gen, when I started it go to full acceleration and I had to cut the fuel for turn off. Could be the rack governor loose in any way and stuck in high RPM? Any advice? Thanks. Is a Cummins onan 7500 with kubota 3 cylinder engine
Hi, I have a question. I recently cracked my head and had it replaced along with the injectors. But it still blows smoke on first crank and under load???
Pete I have the Kubota D722 it overheated it’s in a lawnmower and it seems to be losing radiator fluid through the exhaust but you can’t see it. It’s just a black sooty smoke. Should I order a gasket and do what you did pull the injector thing and how do I find out what torque to set the head bolts back at?
Great video Pete, Just purchased a Kubota X 1140 Diesel and was curios if its normal that it moderately smells like too much diesel coming from the exhaust? It also blows a little smoke when I initially start it up. I have a Kubota SVL 75 and does not smell as much burning diesel as the RTV. Possibly the Kubota SVL 75 may have more emission control components than the RTV?
Hello, I have a kubota D902-6E3198 carpet cleaning engine and I am getting a lot of black smoke and the power of the engine drops when I accelerate it and we putit to work, what do you recomend I do?
Pete: Thank you so VERY MUCH. I have a grey market YANMAR tractor. Model 2820. I have searched high & low for exactly the info you provided in this video. I have learned so much about the care and feeding of the small 2-3 cylinder diesel engines while attempting to get my YANMAR running properly. Your video may be the final piece in the puzzle. Again a HUGE THANK YOU, for the info regarding the removal and breakdown of the fuel injection pump. I have removed and cleaned the injectors, bleed the fuel system, run some "Dextron ATF" through the system, and still had one cylinder when running the engine would just push BLACK SMOKE out the stack. Now I need to find a source for the large spring you show in the video that sits inside the plunger. Hopefully I can find this spring so I don't have to buy a new pump. Any info regarding where these springs might be sourced would be GREATLY APPRECIATED.
Hi Pete. Thanks for the video. I was chasing the source of a broken pin I found in the oil pan when I pulled the pump. I also found a dangling spring there by the shuttle. One end of it is longer than the other. I cant figure out where it attaches to and from. Did you have any springs to attach when you reinstalled the fuel pump? I have an electrical external shutoff not the one attached to the timing cover. Thanks.
Hi Mr. Mechanic: I have a kubota BX2370with a small three cylinder diesel. I have changed the filter -fuel pump and it still bogs down under a small load. Is there any advice that you may have??
Good chance your fuel jelled, you can go to a auto parts store and buy a can of fluid that immediately breaks this up. Costs about $30 not cheap but better than taking the tank off, also change your fuel filters. Kubota users two of them
@@PetesGarage instead of rehashing the same ole story over and over about the owner needing it back fast ?, how about just telling everyone here what the damn part number is for the spring ?, or..is this something you are keeping to yourself to bring in bizz ?. just tell us what the part number is for the spring plz !.
DO NOT CHECK THE FUEL PUMP FIRST!!!!!!!! This symptom can be caused by something as simple as a plugged fuel pickup, i stopped someone from replacing a fuel pump and replaced filter and lines first, found the down tube in the fuel tank had a peice of plastic bag stuck in the fuel line, suction in the fuel lines was causing air to get into the fuel lines before the injection pump. 10 minutes and $10 in parts (fuel lines and filter) and the machine runs like new.
You are absolutely correct. Before doing this video the fuel filters were change, tank drained, and lines cleaned. I did find a huge ball of plastic blocking the pickup. But I think that is based on what the engine is put it,
Great video Pete! Did you replace the gasket/shim on the injector pump or just re-use the existing one? I'm rebuilding a D722 but the injector pump gasket/shim does not seem to come with any of the rebuild kits out there.
I know this video is 3 years old but here goes. I removed the injection pump and everything looked fine. I reinstalled, but I'm not sure if i lined up the pin into the shuttle. I had the injectors tested and 2 were bad and 1 barley working. So i changed them out and started it up. The engine is now making a clicking noise i didn't hear before, and smoking more than before. Could i just take the injection pump off and try to reset, or will the timing be off now?
Pete, thx for the video..when I reinstall the pump it doesn't sit flush,, seems to be hovering and I have to push down to rescrew the Allen bolts. Is this normal?
Pete, I have a B8200 and my pushrods bent and took the front end apart to find the cam, indler, and crank gears are chipped. What would cause this to happen. Thanks, John
Great description of the diesel motor and how it works . Just a little too simple for the average home owner . You are very skilled at mechanical work. Thanks
Thanks Paul, it's worth trying, you never know unless you try.
I ended up swapping my injector pump for a known good pump and now the engine runs great. I went on to completely dismantle the original pump, and lapped the mating surfaces with diamond lapping compound. That pump works now too. Thanks for the encouragement.
That's a great idea. These engines are very simple and easy to work on.
may i ask why you decide to change your pump?
@@ryy597 I had two engines (in light towers). One ran great, the other one barely ran and smoked alot. I swapped fuel pumps, no difference. Swapped filters, fuel and air, no difference, finally, I swapped the injector pumps and the problem moved from one engine to the other.
@@paulcalif so if it runs good than i shouldn't mess with it?
This is exactly what my Kubota k008 is doing we going to give this a try thanks for the great video
Glad to help
I had to replace the injection pump on my bobcat 463. Same engine as here. A rebuilt pump cost about $350. Bobcat wanted over $3,000 to do the job. Took me about 2 hours
Awesome!
Thanks a bunch I have a yanmar ex3200 that happened to me a couple days ago. now I fix it. Thank you Pete
Awesome, good luck
I have a F2880 mower with the D1105 diesel and it has started the blueish smoke and low power. Thought it might be injectors but this seams more accurate. I am no way a mechanic, so your video here has helped me.
Glad it helped
@@PetesGarage was there an option to replace the spring in the pump or do you have to replace the whole pump?
You can change the springs, but I could not get the part number and he needed the mower for his business
Wow great quality of video and interesting info, right to the point with a smooth delivery. Thanks bud
Much appreciated!
Your a good diesel mechanic I can tell. Nice work this was very interesting. I have a D902 on my Kubota BX I love watching videos like this thanks.
Thanks my friend
Thank You for this awesome and simple six minutes video. Was seeking some info about removing Kubota injection pump and now I found it. Thanks! :)
Thanks my friend
The injection timing is set by adding or subtracting the shims under the injection pump. This Kubota has fixed timing like most lawnmower gas engines. A lot of automotive diesel injection pumps have variable injection timing. I installed a Kubota 905 diesel in a Geo Metro and it had driveability issues because of the fixed injection timing.
Interesting, I can see how that would work.
I was thinking about doing the same, 3cyl kubota in a geo , did you ever get it right? How is the power? Could a turbo be added? Milage? Thanks would appreciate some info, did you build a adapter?
@@redfuel6bt Power...terrible. Going from 54 hp to 24 hp makes it a flat land vehicle only. I forgot about the car long ago but still have it. It's not a simple swap at all. Nothing fits. I built the adapter, modified a Suzuki Swift flywheel, clutch, starter, and had to make a vacuum pump to work the brakes. The oil pan hangs low and needs mods to provide clearance. The worst part is that the oil filter is exactly in the way of the right axle. A complex adapter needed to be made to switch it over to the front side of the engine. The fixed timing injection pump makes driveability poor. The governor had to be modified to hit 3600 rpm from fixed 1800. When you were ready to shift and hit 3600, the power cut back completely. But it got around 70mpg during the week I tested it. The registration expired and California would not renew it without the original engine. I have a turbo but it still sits on a shelf. I used to build random things like that but nearing age 70, no longer have the interest. I build solar generators for fun now.
@@redfuel6bt Here it is....built 14 years ago! th-cam.com/video/hnAOF1bOSB8/w-d-xo.html
Here's another random video from 2016 when someone bet me it wouldn't start. th-cam.com/video/BhBKLahX6_0/w-d-xo.html
@@redfuel6bt Since you clearly like Cummins and off road.... here's my boat after converting it from a slow inboard to a stern drive with Chevy 6.5 turbo diesel. I still have the boat in storage and doubt that I'll ever run it again. Boats were fun for years but I'm over it. Note the air horn dongle. It once hung from a friend's Dodge Cummins before he rolled it 3 or 4 times. The old Perkins 47 horsepower diesel that came out of the boat went into her old wooden 28 foot Tollycraft cabin cruiser...very slow, 8mph, but got us around the NorCal Delta at 1.25 gallons per hour. That's cheap boating.
th-cam.com/video/cDyQ_VeZKx0/w-d-xo.html
Fantastic Pete, Thanks
Very welcome
Sir, you do a great video. Clean style and easily understood. 5***** from this new subscriber!
Thank you my friend
Thanks Pete. Nice Job. I had a similar issue with my L3940 Tractor.
Thanks Mark
Very helpful, thanks Pete good job!
Very welcome
Damm starts right up good job sir
At least I hope they do
Interesting, diesels are mostly a mystery but this looked easy. Thanks Pete.
It was easier than I thought. They are not that difficult
Mechanical diesel engines are one of the simplest engine types that exist.
thanks so much,that was the exact problem with my old KX41 excavator
Thanks Rick
u should always do a compression and leak down test before tearing into the engine
I always do. Since I found the broken spring in the pump I took the head off to take a quick look inside, it was a 30 minute job.
@@PetesGarage What should my compression pressure be?. What should my leak down be?
@@oiu7890 Factory specs...new...512-583#
Nice repair.
Thanks my friend
Nice video. Wish I found this prior to diving into my pump. Similar kubota 3 cylinder in a jacobson turfcat. Hadn't ran in 10+ years, water in the fuel. I pulled the injector pump out. I was difficult to get out because the throttle slider was frozen and it ended up breaking on the gears that rotates the plunger inside. (slightly older design to yours). Called kubota, they tell me that dont sell parts for the pump but they would end up sending it to a diesel shop like D&W. These guys were great. Similar problem with finding parts, I send in some pictures of the pump and have the parts the next day. Got the thing running after a bit of time. Wish there were some videos of pump assembly, trade secrets i believe. Hi from Alden
Yeah, diesel engines are always a huge secret. Big money in fixing them
Nice video
I have a 2012 kubota d902 wich blows white smoke on startup after it warms up it goes away brand new injectors and glow plugs
Slight fuel obstruction
Awesome sleuthing Pete.Not a bad price for a new fuel pump I've seen rebuilt ones go for over 1500.
he didn't rebuild the whole pump, just part of it.
I did not rebuild the pump at all, I bought a new one.
It's amazing what they go for
Great job thank you for sharing.
Thanks for watching!
I would recommend always adjusting the valve lash if you have removed the head or rocker assembly even if you keep the push rods in the same locations, it never a good idea to assume the valve lash is correct.
Excellent point, thank you for the comment
all so ck fuel pump timing that is what the shims are for on fuel pump base
Happy New Year Pete the amazing engine man. Thanks for the video
Thanks Jonathan
Good job sir, nice clean work and good personality. I'll subscribe
Thank you and welcome Dusty
Excellent. Got a 902 in my kubota. Runs great, no smoke.
Thanks Brian
Thanks Pete, awesome info!
Thanks for sharing Pet do you have a video how you take off the head
I do not, but it's pretty simple
I am curious, couldn't you have just replaced the spring? or all 3 springs with new ones? Excellent video, I appreciate the work you put in here.
Yes, if I had the part number I could have. Thank you
For the wear and price, I would order three new springs. There is very little wear otherwise, cam lobes were good.
thank you I have a D1105-e but I think this would help bc they are very similar engines and the injection pumps look and operate very similarly so thank you
There are very similar
Hay Pete I have a Bx 2350 and on my number one injector line I cracked it loose to see if I was getting fuel so I tiended it back and now it won't stop leaking it drips
You'll have to loosen and reseat the fuel line in the injector
I had a power loss problem I found number 3 cylinder (that's the cylinder if your standing in front of the engine looking toward the rear of the engine), was dead, and also had a loud clatter noise in the rear of the engine. I pulled the injector out of number 3 cylinder and done a compression test which resulted in a real low compression reading. Just for the fun of it I took a piece of bailing wire about a foot long and lowered it into the cylinder until it touched the top of the piston then I reached around to the front of the engine and grabbed the pulley and turned the pulley back and forth and found I had to turn the pulley as much as two inches in either direction to get any response out of the piston. Immediately I knew where the clattering was coming from and the cause of the misfire and low compression. So I pulled the oil pan off and found the rod bearing had spun and the rod itself was bent in the number 3 cylinder. So at this time I'm in the middle of rebuilding it. Just wanted to share my story on how I diagnosed my engine problems.
That's really cool, sorry it will be so much work.
@@PetesGarage Thank you I enjoyed your video on the fuel pump problem!
Good to know. You got right to the problem. I have that engine.
It was a good one to find
So why was it you didn't just replace the spring and re-install?
Nobody would give me the part number, but I've since found it.
@@PetesGarage where did you find them
@@justinlafon1953 just for anyone wandering along after, you can buy the pump rebuild kits on ebay now, search for "Overhaul repair kit for 3 cylinder NP-PFR3KD50, NP-PFR3KD55, NP-PFR3KX55 " - I just bought one ready to sort my D1105 out for the same issue.
Hi Pete, why didn't you just replace the springs and or new injector instead of purchasing a new pump?
Diesel engines are considered industrial. I would have rebuilt the pump, but the part numbers are not made available and parts are impossible to find without being a distributor. It's kind of a huge money racket.
Gotcha
Also the separate pumps have to be calibrated so that they pump the same amount of fuel per stroke, and without a service manual for the PUMP it is very difficult to get it right. Best to have it overhauled by a shop that specializes in fuel pumps, or do as Pete did and just buy a new one.
I had this same issue with my pump. I took the pump to my local tractor supply. they swapped it from a rebuild they had on the shelf. $125 bucks after core. I was out the door 15 min, back to mowing in about an hour.
Petes Garage i wouldnt have trusted just replacing the 1 broken spring either, highly possible and probable that the other two springs would go bad too, so i agree you made the right desicion in putting a whole new pump on
Just out of curiosity why replacing the entire pump instead of just the broken spring?
I could not find the spring part number and he needed the machine quickly
great video, thank you for the information.
Glad it was helpful!
Good job
Thanks
Take a temp gun run the engine and check which exhaust port on the manifold is cooler before removing head
Good idea
You'd have to do the valve adjustment anyway, the head gasket wouldn't necessarily be exactly the same height and will affect the distance from the camshaft to the rockers
That's true
For ref the pumps / heads are shimmed for engagement...we used to produce these under licence as a Perkins compact engine and the engagement depth varied from engine to engine...you got luck here but could have easy over fuelled
Interesting, thanks
i have an f2000 with a d950 motor. i recently had similar issues with smoke and diminished power. just to see what would happen i added sea foam and hoped it was a stuck injector. 15 mins later it returned to normal power with no smoke. i got lucky but more times than not start with the simple things first. nice video thx.
Thanks for sharing
Thanks Ray
Love video.question?was it making motor overheat before you did the work?
It should not make it over heat
Interesting video Pete. I've acquired an engine in the same range to rebuild in part for entertainment and also to do an engine rebuild video for my channel (and have found the workshop manuals online).
Just a point of note that the D902 is one out of a series of similar engines, including the one I bought (a D662), D722 and the D902. They seem to also use the same pumps on engines like the Perkins K103-07 3 cylinder diesel (Which I've also bought). Presumably the same issue would apply to those and indeed all similar diesels.
Lots of parts are common and similar. I had to use a part number that was not exactly the same.
Great info 👍🏻
Thanks Brad
Great video. If there is a black smoke instead of blue, what could the problem be ? Could it be the fuel injectors ?
Black smoke is fuel so the injectors are a good place to start
@@PetesGarage Thanks for your response. But its not constant, it happens when I first start the engine and then when I give more throttle.
I am getting a problem my D600 keep giving blueish white smoke but engine runs fairly good other than that
Your video is wonderful. I found it by accident and it was very well done. I have a Kubota RTV and I have questions about the hydrostatic transmission if you work on them I would love to see a video on it.
Thanks Earl....I have not worked on them yet.
Most small block Kubota engines are the same, have 2 of them. My question is why didn’t you just replace the spring or just the single injector?
I could not find the right part number at the time. I have found it since.
@@PetesGarage - Any chance you still have that part number? I haven't pulled my pump yet to confirm it, but my bx2200 is smoking and down on power as of today, I just replaced my 3rd hydraulic hose in a week and now it's not running right.
Very nice that you put this out.
Should the radiator be shaking like that?
No, it should not, it needs new mounting bushings. I told the owner
Beautiful
I have the same engine and I had the crown of my sleeve chip causing it to smoke and burn oil.
I have an issue with an exmark that has this issue. Someone rubuilt the blown motor and it has never started since ill be running some tests tomorrow. The theory there was more than likely a fuel issue before and someone tried to start it with ether and blew a rod out-of the side of the block. I just hope the guy rebuilt it correctly.
Good luck
Haha i love the mini blue cobra in the back!!!!
That's a Cobra trainer
Hola, tengo un kubota que le cuesta arrancar en frio. Puede que sea la bomba de combustible? Tiene buena compresión y los calentadores andan bien.
Si
Bonjour, merci pour l'astuce 😉
Je viens de récupérer un moteur Kubota D950, qui ne fonctionne plus avec plus de 6400 heures.
Le moteur n'est pas bloqué, je vais devoir déculasser pour connaître la panne. Encore merci pour vos astuces 😉
Vous êtes les bienvenus
Curious, why couldn’t you have just gotten a new spring and replaced that in the old pump?
Yes, but nobody would give me the part number, there's more money in selling the pumps
Good job👍👍👍👍😷👏🏻
Thanks! 😃
I was watching your video and thanks for doing it. My G4200 started with a leak on the manifold for the injection pump. I replaced the gasket but still had the same leak plus picked up a leak on one of the injectors. I replaced the two "O" rings on the injector and installed another gasket. I still have the leak, it loks like it might be oil with gas coming out. The motor tries to start a little but never does run plus the leak comes out at the gasket. Is there a chance that I am pressurizing the motor due to an injection pump leak and forcing the oil-gas out?
Hopefully you will have the time to assist me.
If an injector is leaking it will pressurize the cylinder and prevent it from starting
Great job!! Do I need to re time the pump after reinstalling? Because I'm working on one after some one tried working on it and I'm not seeing a timing mark.
Yes you do
@@PetesGarage what the correct procedure to time the injection pump?
If you did not change anything it should just line up with the shuttle
@@PetesGarage thank you for your knowledge
How likely is it a 3 cylinder kubota head qill be cracked ? Thanks jeff
No likely unless it really overheated
well done!!
Thanks
Great video.. Ive got a 12 valve, but unsure if I want a kubota diesel. How many hours were on this engine and do you think its a good choice for a residential yard engine?
i would say more than a thousand. It is a great choice
Good job !! I guess you cannot buy just the spring ??
I could not find the spring at the time, but have since found it.
@@PetesGarage Is there a part number for the springs? Just in case this turns out to be my issue. Thanks.
@@berky2755 @Pete's Garage ... is there any reason you're not sharing the p/n of the spring?
Thanks, Pete!
How about some VW 1.9/2.0 TDI Diesel work? I'm considering converting the old '99 Ford Ranger to that setup.
OM616 or 617, much better engines.
I've looked at those Mercedes engines plenty. There is nowhere even close to the aftermarket that there is for VW TDIs. Plus, in my engine compartment, that means lots of cutting and welding and custom fabbing.
I do the work as I get 'em. If I get one, sure I'll do it
There is a large variety of VW 1.9 and 2.0 TDI engines, which one are you looking for?
Many people prefer the ALH code engine.
planeflyer21 a kubota V2203 engine with a turbo does well as well in a small truck
Thanks!
You bet!
Expensive pump, why didn't you rebuild your old pump, seemed simple just replace the spring right?
Yes, but I could not get the springs and he needed it fast
Why did you take the cylinder head off'
To check if the head gasket was ok
We have the exact same machine SCAG Turf Tiger II with Kubota. It blew the head gasket once and even cracked the top due to overheating. Now maybe it has done it agian. It keeps overheating almost immidiately. What can be wrong?
Blockage in the system somewhere, radiator, block, hose, maybe the pump isn't working right
I have a similar issue with my mahindra 2015HST. I’ve replaced the injectors without improvements. Next is the solenoid fuel pump, which I’m going today. I will also clean the fuel tank when I do that. If it doesn’t change anything though, I will break into the injection pump and change the head gasket while I’m at it.
My only fear is valve clearance. I know nothing about it and I’m worried about screwing it up when I reassemble it. Do you have any advice here?
If you don't rotate the engine with the head off you have nothing to worry about
So ended up taking it to a shop. There is at least one bad cylinder and they’re gonna tear it down. Hopefully it’s just one set of rings.
Good luck my friend
Hi, thanks for detailed video. I had a problem in my gen, when I started it go to full acceleration and I had to cut the fuel for turn off. Could be the rack governor loose in any way and stuck in high RPM? Any advice? Thanks. Is a Cummins onan 7500 with kubota 3 cylinder engine
A loose governor will do it
Hi Pete! So you can't just replace the broken spring?
You can, but they were not available quickly and the guy needed the machine for his business
why didnt you just change the spring?
I tried, nobody would give me the part number or sell me one. The diesel parts industry is very different
@@PetesGarage Well nice fix!
Thank you!
Welcome!
Pete why didnt you just put new springs in?
I could not find the part number and the owner needed the machine back running quickly
Hi, I have a question. I recently cracked my head and had it replaced along with the injectors. But it still blows smoke on first crank and under load???
Check the fuel supply
Pete I have the Kubota D722 it overheated it’s in a lawnmower and it seems to be losing radiator fluid through the exhaust but you can’t see it. It’s just a black sooty smoke. Should I order a gasket and do what you did pull the injector thing and how do I find out what torque to set the head bolts back at?
Hopefully the block or head is not cracked.
Might be a dumb question but why replace the entire pump and not just the spring?
I tried and looked for a couple hours, nobody had a spring and he needed the machine to make money
Cómo montaste la bomba!
Está atornillado directamente al bloque.
Very down to earth explanation..pete..👍
Thanks 👍
What process did you do for bleeding the fuel after putting it back together?
Crack the fuel lines
Did you have to replace the entire pump? Or could you replace just the spring?
You can replace just the springs
@@PetesGarage thank you for the video and the quick reply
Great video Pete, Just purchased a Kubota X 1140 Diesel and was curios if its normal that it moderately smells like too much diesel coming from the exhaust? It also blows a little smoke when I initially start it up. I have a Kubota SVL 75 and does not smell as much burning diesel as the RTV. Possibly the Kubota SVL 75 may have more emission control components than the RTV?
It could be, until it breaks in some
They make different shims for timing. Did you check that when you installed the new pump ?
Yes
Just wonder,, why did it blow blue smoke? Shouldn't that be black smoke?
Starving for fuel, lean
Hello, I have a kubota D902-6E3198 carpet cleaning engine and I am getting a lot of black smoke and the power of the engine drops when I accelerate it and we putit to work, what do you recomend I do?
That's a tough one. Could be anything from water in the fuel to a stuck valve
where did you buy the injection pump??
Some online store
thank you,, great stufffffff
You're welcome!
Did you have to bleed the pump and injectors before starting?
Yes, not much through
Pete: Thank you so VERY MUCH. I have a grey market YANMAR tractor. Model 2820.
I have searched high & low for exactly the info you provided in this video.
I have learned so much about the care and feeding of the small 2-3 cylinder diesel engines while attempting to get my YANMAR running properly.
Your video may be the final piece in the puzzle. Again a HUGE THANK YOU, for the info regarding the removal and breakdown of the fuel injection pump.
I have removed and cleaned the injectors, bleed the fuel system, run some "Dextron ATF" through the system, and still had one cylinder when running the engine would just push BLACK SMOKE out the stack.
Now I need to find a source for the large spring you show in the video that sits inside the plunger.
Hopefully I can find this spring so I don't have to buy a new pump.
Any info regarding where these springs might be sourced would be GREATLY APPRECIATED.
Happy to help Bob, there are some diesel supply and parts places online that sell the springs
Hi Pete. Thanks for the video. I was chasing the source of a broken pin I found in the oil pan when I pulled the pump. I also found a dangling spring there by the shuttle. One end of it is longer than the other. I cant figure out where it attaches to and from. Did you have any springs to attach when you reinstalled the fuel pump? I have an electrical external shutoff not the one attached to the timing cover. Thanks.
It depends an the pump model. Try looking it up from the stamping on the pump
Hi Mr. Mechanic: I have a kubota BX2370with a small three cylinder diesel. I have changed the filter -fuel pump and it still bogs down under a small load. Is there any advice that you may have??
Change the fuel in case there is water in it, and look in the gas tank for an obstruction blocking the fuel line.
Good chance your fuel jelled, you can go to a auto parts store and buy a can of fluid that immediately breaks this up. Costs about $30 not cheap but better than taking the tank off, also change your fuel filters. Kubota users two of them
Can you not just replace the spring?
You can, I could not find the part number fast enough and he needed the machine for his business
@@PetesGarage instead of rehashing the same ole story over and over about the owner needing it back fast ?, how about just telling everyone here what the damn part number is for the spring ?, or..is this something you are keeping to yourself to bring in bizz ?. just tell us what the part number is for the spring plz !.
Do we need to bleed the engine after installing a injector pump?
Yes
DO NOT CHECK THE FUEL PUMP FIRST!!!!!!!! This symptom can be caused by something as simple as a plugged fuel pickup, i stopped someone from replacing a fuel pump and replaced filter and lines first, found the down tube in the fuel tank had a peice of plastic bag stuck in the fuel line, suction in the fuel lines was causing air to get into the fuel lines before the injection pump. 10 minutes and $10 in parts (fuel lines and filter) and the machine runs like new.
You are absolutely correct. Before doing this video the fuel filters were change, tank drained, and lines cleaned. I did find a huge ball of plastic blocking the pickup. But I think that is based on what the engine is put it,
Great video Pete! Did you replace the gasket/shim on the injector pump or just re-use the existing one? I'm rebuilding a D722 but the injector pump gasket/shim does not seem to come with any of the rebuild kits out there.
I reused them. Worked fine
@@PetesGarage Great! Thanks Pete!
the "gaskets" are shims used to set the injection pump timing. put the same thickness in that came out or do the pump timing procedure
@@richardcranium5839 Correct
I know this video is 3 years old but here goes. I removed the injection pump and everything looked fine. I reinstalled, but I'm not sure if i lined up the pin into the shuttle. I had the injectors tested and 2 were bad and 1 barley working. So i changed them out and started it up. The engine is now making a clicking noise i didn't hear before, and smoking more than before. Could i just take the injection pump off and try to reset, or will the timing be off now?
You have to check the lifters on the pump
Pete, thx for the video..when I reinstall the pump it doesn't sit flush,, seems to be hovering and I have to push down to rescrew the Allen bolts. Is this normal?
Make sure the shuttle is lined up with the spool
Pete, D722 blowing smoke out of valve cover vent hose not from exhaust. Any ideas?
Worn valve guides?
Busted rings, damaged piston?
Pete, I have a B8200 and my pushrods bent and took the front end apart to find the cam, indler, and crank gears are chipped. What would cause this to happen. Thanks, John
Backfire or fuel vapor lock