Gasoline engines mate well with 2-pole alternators to generate power at 3600 rpm. Diesel engines mate well with 4-pole alternators to generate at 1800 rpm.
thank you for sharing my two biggest beefs with your build is the small bolts and no washers and the 3,600 engine speed. i would not run anything at 3,600 but trade for a 4 pole head or pulley it down. been off grid 15 years and use a lambardini with a dc motor/generator via a solar charger. as backup.
Well. first...If you live off the grid, then I kneel before you, hat in hand. Having said that, most Harry Homeowner 5K "Emergency Generators" run at 3600. I am also concerned with the RPM, but I needed the HP to keep up the HZ for my water pump. I'd rather loose the genny than my water pump (Florida). I also have solar, battery packs, and a propane gen for the water. Thanks for watching and sharing! BTW....What small bolts?
I would make the actual mounting of the two main components on a solid substrate ( if weight were no issue, say a half inch steel plate.) with the required offsets added to perform any required alignment. Then I would use rubber isolation mounts to attach to the current welded square tube frame. Two things, the vibration harmonics you currently have will dramatically be reduced. Not 100 percent that’s for sure, but the longevity of all components will be drastically improved especially the lovejoy coupling. Make it more rigid and try to balance out as much tangent vibrations as realistically possible.
For the coupling I would use a car part called Guibo, or Hardy disc. (German ) It is placed in any car between the Gearbox and the Kardan, it is made of rubber and some short metal tubes. Its cheap.
Looks good. I would say the next thing for it is designing an enclosure with decent sound dampening material and air ventilation in two halves for cooling, one for the engine and the other for gen head as it sounds incredibly loud on camera.
It is loud. I only use it an hour at a time to take showers, do dishes, and get my water pressure up. I have a huge solar powered batt pack for the rest of my needs. After a hurricane, all you can here is everyone's gens running, so you kind of tune it out (and drink a lot).
Why didn't you use the belt drive ? You could have run at a lower rpm and save fuel and not work the engine as hard the only reason I would use a diesel was longevity and at lower rpm it's less noisy
The coupling will hammer itself to death with the pulses of the engine vs the inertia of the generator. It wont last long, maybe 100 hours at best. Use vee belts with 200mm pulleys they will absorb the pulses and last.
1800 RPM would have been a better generator speed. Some modern units use a DC generator into a pure sine wave inverter and the motor can slow down a lot at zero power draw.
Hello, very impressive! I have been thinking of getting one of the 418cc diesels myself and making a combo air compressor plus generator. My question is, what sort of speed control did you employ to keep the output at 60Hz? One would think that the shop vac and chop saw would have slowed the engine down.
Wow I built something very similar, with a northern tool 4500 watt head, and the lovejoys for direct drive. I used old hockey pucks drilled out as vibration dampeners. I also got the electric starter for the engine, you still have to use the decompression lever to get it started.
Designing/building stuff with two separated components makes perfect sense! If either component of “direct coupled” equipment fails it invariably leads to total replacement! Nice work 👍
Very cool. I’m currently researching make my own diesel gen for my rv. Came across this video which really peaks my interest and let’s me know it can be done. Subscribed. Thanks
The joint you would really benefit from, is the 'rubber plate universal', like Mercedes used on the driveshafts of their old 400-SEL class cars. The plate looks like a 'sidewall cutout' from a radial car tire, and can tolerate angles and mis-alignment, as well as quell a LOT of vibration (which is NOT good for electric motor bearings). Also, that 3,600 RPM on a diesel...OUCH! Lot to be said for 2,400-rpm and pulley drive ratios! That engine is clearly HUGE compared to the motor...and while the 3/5ths rule works with gas engines (3 hp electric motor requires a 5-hp gas engine to drive it), this is not usually the case with diesels, due to their increased torque range...you can almost go 1:1 ratio with diesels...so 4700 watt motor (6.3 hp) shouldn't take more than 6.5 diesel hp to drive it...in other words, you could downsize your diesel, or more-likely, upside your gen head. Lastly, you could go with a conventional air-compressor service 208v single phase motor...maybe 10-hp, and with a simple fuse box, rig up both 110v and 220v circuits with breakers...add in a belt to drive a 100-amp 12v alternator, and a starter circuit, and you've got an 'all-power' rig that could be lifted with an engine hoist, or set up with rollers to roll around, or even pallet pockets to lift it with a fork lift... Good start, but that 'metal union' is massive overkill for something this small...hope you don't come to regret it, due to it's precision and 'vibration transferrance'.
Thanks. The coupling is metal/rubber/metal, and has allowances for offset. I appreciate your math, and I did much of the same prior to build. You must consider startup surges, which can be several times the running wattage of the appliances. If diesel and gen head can't instantly overcome a startup surge, you can damage either the gen head or the appliances. My 2300 watt water pump has a start up of about 12k watts. That has to happen while other things are loading the gen....like fridge and ceiling fans. Thanks again for watching!
Would be neat to put a laser on it and see how far it’s off. If you find it’s chewing up the coupling element. Try a dodge para-flex. It’s basically what this person is describing
I did a pm DC motor connected to a pvm solar charge controller a lambardini diesel to pmdc motor via belt drive…this can easily recharge a battery bank off grid.
If I try and link the diesel it takes you to my Amazon acct. Search Amazon for 9 hp diesel and you'll find it. The gen is a Winco 4800. They are available from many distributors. Total cost for me was about $1200.
Not, such a big deal. I built a 14 kw 25 years ago using the Love Joy coupling system because they are very high grade products and offer the ability to couple different sized shafts (they aren't cheap). Used a car axle to build the frame on because it was both mobile and acted as a vibration damper.
on wath thing can we find small diesel engine? here in europa its super rare to find small diesel usualy its 4 cyl 2 liter ... it could work as generator always at idle but its very unpractical to move XD
Nice video! Could you post some info about the diesel engine? Where you bought it and such. And also, would a regular electric motor work in a build as such?
Those love joy couplings arent good steel it will fly apart on you if your gonna continue to use put a steel shroud around it so the shrapnel doesnt potentially injure someone And yes those lovejoy couplings have flown a part on alternator generator set ups theyre was a video here on youtube about that too
Thanks! We didn't get a hurricane this year, so I didn't get to put it thru it's paces. A Harley motor would be a VERY cool generator, but kind of a waste of a Harley motor? It would sell for big $$ during bike week tho...
Thank you! I have been looking for a generator build that I can use on a skoolie (school bus turned motor home) So that the generator can run off the primary fuel tank. Do you think this would be able to fully power a motorhome? namely a desktop PC, Fridge and mini-split AC? I know it would be best for such an application to run with a belt instead, but am concerned about having enough output. Should I upgrade the parts?
You have to add up the wattage of each appliance, and make sure your gen head can supply it. The main thing is holding the rpm at 3600 as the load varies.
what is the wattage of the power head? I am very curious as to how it is working. We live remote in Alaska and this would be amazing to have to keep our batteries topped in winter.
That would depend on the load. I haven't run it yet under a heavy load for long periods, but I can say that it would run for hours freewheeling or lightly loaded.
Well...it wheeled out on my little dolly on the dry ground before hurricane Ian. After, the little dolly didn't do so well in the mud. I'm going to make a special dolly with big fat tires. But you're right....when it's down off the wheels, it isn't going anywhere!
I would like to do this during winter months, got plenty of engines and generators to work with Like the H design and coupler Keep us up to date Thanks 😊
Will this run on fryer oil? I was thinking you can use shims to line the shafts up. I'm a manufacturing tech. Thanks I appreciate educational videos like this.
I have an old Onan generator from an RV. The original motor has seen better days, but when it runs it still pus out steady 120v. This video gives me great ideas for motor replacement, and my wife anxiety, lmfao.Great video. Stay safe.
I'd be very tempted to use a belt over a love joy. Solves all the alignment challenges. Puts you into common parts that can be found most anywhere. Allows you to rotate the generator so the entire machine is operated from the same side. I'd probably fab it up with an automotive style spring tensioner so I never have to fuss with correct tension. Cool project. Not sure if the fuel consumption is significantly different than say a Honda or Subaru.
It would be interesting to see what it's brake specific fuel consumption is, and just how many kilowatt hours it can generate per gallon of diesel fuel. It should be much more efficient, than a commercially available gasoline generator of the same power rating.
I wonder how well one of these would take to an rhb31 turbo and what kind of kw it could reliably put out. If it would be enough to run my house which uses 12.5 kw.
Awesome build. Have you put a decibel meter on it to see how loud it is? I couldn't hear any of the other equipment over the sound of the generator. I have an off-grid property and would love to do something like this there but am concerned about the noise.
Some form of spring isolation is used even in the commercial portable generators. This should definitely have a cushy isolation spring between the metal frame and the ground.
how does the motor deal with the fluctuating load ? I suggest putting slight out handles on one side and holes on the other to snap in removable wheels. You could build a box for sound insulation and put a couple cooling fans in for redundancy. How about a belt off the coupling to an a/c dompressor modified to for compressed air.
#gwseymour imagine having a cabin in the woods and putting that little beast in a generator shed and having it wired to your cabin with either remote or push button start and having an in ground well and have it hooked to a battery bank and breaker box and have a water heater inside and have a 50-100gal fuel tank to hook up to the generator you'd have it made
Just the ability to operate your wells water pump with a generator that can run off fuel you can make, will be worth its weight in gold in an emergency or a shtf situation
hi, I would like to make a generator. I have a 4-stroke 3hp grass cutter engine available ..which electric motor do you recommend using? how many watts can I squeeze out?
I'm thinking of doing the belt or possibly chain thing. I have a 5000w with the 178f (l70 clone) engine and I have a spare 186fa (l100 clone) if I run it at 2700 and the generator at 3600 the torque on the output end of the drive should be the same as the smaller one running balls out
I hope somebody knows the answer to this, the governor that is mentioned to maintain constant rpm/ frequency under load......Is this a feature built into the diesel engine, a feature provided by the generator head, or is there some other module you have to source in order to accomplish this?
I’d like to do something exactly like this, but use waste oil in it. Where in from we have more waste oil then we know what to do with. Perhaps cut it with some diesel and basically next to nothing cost for fuel, and sorta free electricity.
I don't have any experience with alternate fuels, but there's a lot of info out there. From what I've read, you just have to be prepared to deal injector / pump issues. Good luck, and post back with what you learn!
I love finding small channels like this, truly a gem
Thanks! Glad you enjoyed it!
Здравейте от България такъв мини дизел двигател моля цена благодаря
Gasoline engines mate well with 2-pole alternators to generate power at 3600 rpm. Diesel engines mate well with 4-pole alternators to generate at 1800 rpm.
This type of diesel needs 3600rpm to make useful power for 60hz generation (3000rpm for 50hz.) These are high speed diesels
We use lister diesels they run below 1000 rpm
And are cheap as hell
@@nhilistickomrad4259 dirt cheap? what country?
1800 rev/min givers a spectaculair improfement in noice from the generator
@@henkholdingastate Small diesel engines like that will break from being laboured
thank you for sharing
my two biggest beefs with your build is the small bolts and no washers and the 3,600 engine speed.
i would not run anything at 3,600 but trade for a 4 pole head or pulley it down.
been off grid 15 years and use a lambardini with a dc motor/generator via a solar charger. as backup.
Well. first...If you live off the grid, then I kneel before you, hat in hand. Having said that, most Harry Homeowner 5K "Emergency Generators" run at 3600. I am also concerned with the RPM, but I needed the HP to keep up the HZ for my water pump. I'd rather loose the genny than my water pump (Florida). I also have solar, battery packs, and a propane gen for the water. Thanks for watching and sharing! BTW....What small bolts?
@Kiel Uyttenhove Yes Sir! It's all a trade. At 3600 it holds the rpm (HZ and HP) perfectly.
Have you tried running on alternative fuels such as biodiesel, waste motor oil, fryer oil etc?
I would make the actual mounting of the two main components on a solid substrate ( if weight were no issue, say a half inch steel plate.) with the required offsets added to perform any required alignment. Then I would use rubber isolation mounts to attach to the current welded square tube frame. Two things, the vibration harmonics you currently have will dramatically be reduced. Not 100 percent that’s for sure, but the longevity of all components will be drastically improved especially the lovejoy coupling. Make it more rigid and try to balance out as much tangent vibrations as realistically possible.
How well would it work if it was belt driven with a little larger pully on the generator side so you could slow the rpm down on the engine ?
For the coupling I would use a car part called Guibo, or Hardy disc. (German ) It is placed in any car between the Gearbox and the Kardan, it is made of rubber and some short metal tubes. Its cheap.
Thanks....I used what I had, but there are many good coupling options.
Please include or send us a pic of your joint….?
@@offgridmangogrower Well....I can't add a pic to a current video. It's a Lovejoy. there are many pics on line.
Nicely done! The voltage and engine RPM barely even blinked when you applied load. Should give you a long reliable service life
Looks good. I would say the next thing for it is designing an enclosure with decent sound dampening material and air ventilation in two halves for cooling, one for the engine and the other for gen head as it sounds incredibly loud on camera.
It is loud. I only use it an hour at a time to take showers, do dishes, and get my water pressure up. I have a huge solar powered batt pack for the rest of my needs. After a hurricane, all you can here is everyone's gens running, so you kind of tune it out (and drink a lot).
Nicely done. It’s noisy AF! Next project for me would have to be a sound isolation generator shed.
If you had an 1,800 RPM 4 pole generator, you could run the engine at 1,800 RPM for longer life and lower noise.
Why didn't you use the belt drive ? You could have run at a lower rpm and save fuel and not work the engine as hard the only reason I would use a diesel was longevity and at lower rpm it's less noisy
The coupling will hammer itself to death with the pulses of the engine vs the inertia of the generator. It wont last long, maybe 100 hours at best. Use vee belts with 200mm pulleys they will absorb the pulses and last.
Nice job, but if I used that generator on my block with its LOUD noise, my neighbors would go crazy - Any way to quiet it down ?
In my view belt drive would be better because most vibration is torsional and transversally-mounted engine would have better vibration insulation
1800 RPM would have been a better generator speed. Some modern units use a DC generator into a pure sine wave inverter and the motor can slow down a lot at zero power draw.
No shit shirlock - but nobody makes a small 1800 working rpm engine.
@@royb.1441 i have an onan1800. 750 watts.
@@royb.1441the old Lister TR-1s work at 1500rpm but I can't find anything new like those.
Hello, very impressive! I have been thinking of getting one of the 418cc diesels myself and making a combo air compressor plus generator. My question is, what sort of speed control did you employ to keep the output at 60Hz? One would think that the shop vac and chop saw would have slowed the engine down.
the engine already has a governor on it... so you just set it to the RPM you want and it will try to stick to that. That is just what a governor does.
So long as you don’t exceed the output (4,5kw) of the generator
For Example, a 10kw generator will struggle be driven by his 9hp (6,75kw) engine.
Wow I built something very similar, with a northern tool 4500 watt head, and the lovejoys for direct drive. I used old hockey pucks drilled out as vibration dampeners. I also got the electric starter for the engine, you still have to use the decompression lever to get it started.
where did you get the electric start also do you run motor oil in it
Designing/building stuff with two separated components makes perfect sense!
If either component of “direct coupled” equipment fails it invariably leads to total replacement! Nice work 👍
Great build, the performance of the governor is amazing!
Thanks. Just got thru Hurricane Ian, and it performed flawlessly.
@@gwseymour Paid it's way already them, glad you're safe.
@@stevemorris3710 Thanks! Finally getting dug out of this mess.
Nice work you can build a canopy around it with cooling fan to make it a bit quiet 🤫 that what I will do
Thanks!
What are your thoughts on the same engine powering a Winco 7200 with the same load? Please. Fantastic job on this Sir!!!
Thanks! It would perform the same under the same load, but It's not enough HP to get the full use from a 7200.
Have you run this many hours to verify the coupling and over speed operation?
Diesel is so much better lower rpm engine lasts longer more fuel efficient
These are cool but hate the 3600 RPM designs. Those engines dont last very long at all as compared to an 1800 RPM with a 4 pole generator.
Very cool. I’m currently researching make my own diesel gen for my rv. Came across this video which really peaks my interest and let’s me know it can be done. Subscribed. Thanks
It would be worth trying if you lived in Northern countries. Then you could combine diesel engine with diesel heater
The joint you would really benefit from, is the 'rubber plate universal', like Mercedes used on the driveshafts of their old 400-SEL class cars. The plate looks like a 'sidewall cutout' from a radial car tire, and can tolerate angles and mis-alignment, as well as quell a LOT of vibration (which is NOT good for electric motor bearings). Also, that 3,600 RPM on a diesel...OUCH! Lot to be said for 2,400-rpm and pulley drive ratios! That engine is clearly HUGE compared to the motor...and while the 3/5ths rule works with gas engines (3 hp electric motor requires a 5-hp gas engine to drive it), this is not usually the case with diesels, due to their increased torque range...you can almost go 1:1 ratio with diesels...so 4700 watt motor (6.3 hp) shouldn't take more than 6.5 diesel hp to drive it...in other words, you could downsize your diesel, or more-likely, upside your gen head. Lastly, you could go with a conventional air-compressor service 208v single phase motor...maybe 10-hp, and with a simple fuse box, rig up both 110v and 220v circuits with breakers...add in a belt to drive a 100-amp 12v alternator, and a starter circuit, and you've got an 'all-power' rig that could be lifted with an engine hoist, or set up with rollers to roll around, or even pallet pockets to lift it with a fork lift...
Good start, but that 'metal union' is massive overkill for something this small...hope you don't come to regret it, due to it's precision and 'vibration transferrance'.
Thanks. The coupling is metal/rubber/metal, and has allowances for offset. I appreciate your math, and I did much of the same prior to build. You must consider startup surges, which can be several times the running wattage of the appliances. If diesel and gen head can't instantly overcome a startup surge, you can damage either the gen head or the appliances. My 2300 watt water pump has a start up of about 12k watts. That has to happen while other things are loading the gen....like fridge and ceiling fans. Thanks again for watching!
A 6hp diesel engine will never pull 4700 watts
Would be neat to put a laser on it and see how far it’s off. If you find it’s chewing up the coupling element. Try a dodge para-flex. It’s basically what this person is describing
I did a pm DC motor connected to a pvm solar charge controller a lambardini diesel to pmdc motor via belt drive…this can easily recharge a battery bank off grid.
Like to see that mbz donut shock absorber…best to head out to a wrecking yard to get schooled….
Can you link the generator and motor so we can get an idea of what the project will cost?
If I try and link the diesel it takes you to my Amazon acct. Search Amazon for 9 hp diesel and you'll find it. The gen is a Winco 4800. They are available from many distributors. Total cost for me was about $1200.
Not, such a big deal. I built a 14 kw 25 years ago using the Love Joy coupling system because they are very high grade products and offer the ability to couple different sized shafts (they aren't cheap). Used a car axle to build the frame on because it was both mobile and acted as a vibration damper.
Nice build, but... it's LOUD! I hope you don't have close neighbours or run it in a campsite or anchorage.
This is identical to the one that Aurora Generators sells!
I haven't seen them, but it's a pretty basic design.
Any idea of cost per kWh of power produced using diesel?
hey if i cannot find alternator like that. is it possible to use tractor pto generator? you know . The generator that attached to rear of tractor.
The generator head in the vid was pretty much designed to serve as a PTO generator...so I'd say yes.
thanks buddy. I'm going to buy soon.
on wath thing can we find small diesel engine? here in europa its super rare to find small diesel usualy its 4 cyl 2 liter ... it could work as generator always at idle but its very unpractical to move XD
Nice video! Could you post some info about the diesel engine? Where you bought it and such. And also, would a regular electric motor work in a build as such?
Just found the info about the engine on your other video! :)
Great! You could try a DC motor, and use an inverter to convert to AC, but you'd have to get the speed just right.
Thanks for the advice! :)
How many HP is engine???
Those love joy couplings arent good steel it will fly apart on you if your gonna continue to use put a steel shroud around it so the shrapnel doesnt potentially injure someone
And yes those lovejoy couplings have flown a part on alternator generator set ups theyre was a video here on youtube about that too
Correct. I just finished installed a shroud! I also had fears of a cord or shirt tail getting caught.
Anyone usinf FTC Innovation generators in direct drive to something like this
Can you make this auto start when the battery drops a certain voltage, or maybe remote start?
Kinda want to use an old car to power a pto generator. Is this possible?
really cool share bruh!!..
wonder if a harley twin cam motor and a 22 kw would be a good project?! just larger scale.
larry
Thanks! We didn't get a hurricane this year, so I didn't get to put it thru it's paces. A Harley motor would be a VERY cool generator, but kind of a waste of a Harley motor? It would sell for big $$ during bike week tho...
Looks like an engine from a Generac generator ripped out lol
would that engine have the power to turn 2 of those generators?
I want to know how long it will run under load on one gallon of fuel
Thank you! I have been looking for a generator build that I can use on a skoolie (school bus turned motor home) So that the generator can run off the primary fuel tank. Do you think this would be able to fully power a motorhome? namely a desktop PC, Fridge and mini-split AC? I know it would be best for such an application to run with a belt instead, but am concerned about having enough output. Should I upgrade the parts?
You have to add up the wattage of each appliance, and make sure your gen head can supply it. The main thing is holding the rpm at 3600 as the load varies.
Cold weather might be a problem with no glow plugs or electric start?
Pretty neat
Thanks!
what is the wattage of the power head? I am very curious as to how it is working. We live remote in Alaska and this would be amazing to have to keep our batteries topped in winter.
A morris coupling should be more forgiving
How long will it run on 1 litre of diesel?
That would depend on the load. I haven't run it yet under a heavy load for long periods, but I can say that it would run for hours freewheeling or lightly loaded.
Have you thought of trying your steam turbine with this generator or would there not he enough power?
The little turbine wouldn't do it. It's set up to do about 350 watts DC for charging batteries like a solar panel.
I think not having wheels will make it harder to steal. They'd really have to sweat for it as it sits now.
Well...it wheeled out on my little dolly on the dry ground before hurricane Ian. After, the little dolly didn't do so well in the mud. I'm going to make a special dolly with big fat tires. But you're right....when it's down off the wheels, it isn't going anywhere!
I would like to do this during winter months, got plenty of engines and generators to work with
Like the H design and coupler
Keep us up to date
Thanks 😊
Will this run on fryer oil?
I was thinking you can use shims to line the shafts up. I'm a manufacturing tech. Thanks I appreciate educational videos like this.
Thanks! The gen head is shimmed with brass. I have not tried any alt fuels....I really don't dare.
I have an old Onan generator from an RV. The original motor has seen better days, but when it runs it still pus out steady 120v. This video gives me great ideas for motor replacement, and my wife anxiety, lmfao.Great video. Stay safe.
How much would you charge me but me an exact replica of this?
I'd be very tempted to use a belt over a love joy. Solves all the alignment challenges. Puts you into common parts that can be found most anywhere. Allows you to rotate the generator so the entire machine is operated from the same side. I'd probably fab it up with an automotive style spring tensioner so I never have to fuss with correct tension.
Cool project. Not sure if the fuel consumption is significantly different than say a Honda or Subaru.
It would be interesting to see what it's brake specific fuel consumption is, and just how many kilowatt hours it can generate per gallon of diesel fuel. It should be much more efficient, than a commercially available gasoline generator of the same power rating.
I wonder how well one of these would take to an rhb31 turbo and what kind of kw it could reliably put out. If it would be enough to run my house which uses 12.5 kw.
It has been a couple of years, how is this holding up? Also how well does it hold frequency with a few thousand watt load?
Wow, I am really impressed with the Prime mover. It started on the very first pull. Very Nice video
SO tell me about the diesel motor
Awesome build. Have you put a decibel meter on it to see how loud it is? I couldn't hear any of the other equipment over the sound of the generator. I have an off-grid property and would love to do something like this there but am concerned about the noise.
What did you use to regulate engine speed to ensure the consistent 3,600 RPM to the generator?
Some form of spring isolation is used even in the commercial portable generators. This should definitely have a cushy isolation spring between the metal frame and the ground.
Wouldn't a steering shaft rag joint work as a engine/generator coupler?
Củ phát điện của ý 6kw bao nhiêu tiền vậy bạn ?
The problem is trying to find these small diesel generators with out going to amazon or ebay, local sources are better.
Source for engine & head?
how does the motor deal with the fluctuating load ? I suggest putting slight out handles on one side and holes on the other to snap in removable wheels. You could build a box for sound insulation and put a couple cooling fans in for redundancy. How about a belt off the coupling to an a/c dompressor modified to for compressed air.
Could you replace the gas motor on a complete generator with that diesel engine? Something I would want to do.
#gwseymour imagine having a cabin in the woods and putting that little beast in a generator shed and having it wired to your cabin with either remote or push button start and having an in ground well and have it hooked to a battery bank and breaker box and have a water heater inside and have a 50-100gal fuel tank to hook up to the generator you'd have it made
Just the ability to operate your wells water pump with a generator that can run off fuel you can make, will be worth its weight in gold in an emergency or a shtf situation
Great job on the alignment! Especially considering the very tight tolerances. 👍
I want to do this same build and try to make a diesel/electric golf cart
How's this thing holding up a few years later?
hi, I would like to make a generator. I have a 4-stroke 3hp grass cutter engine available
..which electric motor do you recommend using? how many watts can I squeeze out?
MIGHT get 2 kw out of 3hp,
How is your generator holding up? cool build,
I'm thinking of doing the belt or possibly chain thing. I have a 5000w with the 178f (l70 clone) engine and I have a spare 186fa (l100 clone) if I run it at 2700 and the generator at 3600 the torque on the output end of the drive should be the same as the smaller one running balls out
Can you please list a link to the generator head you used.
Foam filled wheels.
I added cast iron wheels to my generator frame.
and with 500 feet of cord you cant even hear it much
Hookup a barrel aux fuel tank
How compact is it? I’m curious to know what the weight is and how easily it can be moved around.
Gran trabajo
Why not a U-joint coupling?
You might consider some kind of deflector to keep the engine heat off of the generator.
Based on my past experience….I’d go v belts based on diesel ‘s vibration ….way less challenging…
It was my first design choice, and I still have the pulleys in a box. So far, the Lovejoy coupling is doing great.
I hope somebody knows the answer to this, the governor that is mentioned to maintain constant rpm/ frequency under load......Is this a feature built into the diesel engine, a feature provided by the generator head, or is there some other module you have to source in order to accomplish this?
It’s built in from factory
I’d like to do something exactly like this, but use waste oil in it. Where in from we have more waste oil then we know what to do with. Perhaps cut it with some diesel and basically next to nothing cost for fuel, and sorta free electricity.
I don't have any experience with alternate fuels, but there's a lot of info out there. From what I've read, you just have to be prepared to deal injector / pump issues. Good luck, and post back with what you learn!
Great now you can make your own bio diesel 😊
Junk
What a perfection
Thanks!
If you had used belts and pulleys, how would have you done it?
I would have mounted the gen head to the side, or raised it up.
Would it last one year?
I thought a diesel might make best power at lower rpm than gas
RPM = HP
What cant you power with this. Looking to build a welder
Whatever you can or cannot power is all about the wattage. I'd go much bigger for welder.
How did you mount that engine?
Mine would dance all over….very smooth
The engine and gen are bolted solid. The frame sits on rubber mounts I just added removable rubber tires.
very nice video, thanks for sharing.
Very nice build, thanks for posting.
nice clean and neat build