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Ea300 based generac generator.

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guest18:
cujet, you have a nice one there.
I see it has a Markon generator head. My guess is that it is either a BL105E or BL105F. Itís been years so I might be wrong. The clogged belt setups are nice. They do make a little noise but they are reliable and can take less tension than other belted setups.

It could possibly be one made by Next Generation Power Engineering, Inc.
I know some of the people at Next Generation over 10 years and they are great to work with. And, they have most parts in stock.

If it is one of theirs itís one of the earlier ones. They changed to a custom stretch type serpentine belt setup. The stretch type belt setup is also reliable and much quieter than the clogged setup. But I would rather have the clogged setup.

What can it put out?

cujet:

--- Quote from: hwew on August 01, 2021, 03:48:53 AM ---cujet, you have a nice one there.
I see it has a Markon generator head. My guess is that it is either a BL105E or BL105F. Itís been years so I might be wrong. The clogged belt setups are nice. They do make a little noise but they are reliable and can take less tension than other belted setups.

It could possibly be one made by Next Generation Power Engineering, Inc.
I know some of the people at Next Generation over 10 years and they are great to work with. And, they have most parts in stock.

If it is one of theirs itís one of the earlier ones. They changed to a custom stretch type serpentine belt setup. The stretch type belt setup is also reliable and much quieter than the clogged setup. But I would rather have the clogged setup.

What can it put out?



--- End quote ---

Thanks for the info. Not at all sure what it can put out. Hooked up a couple of 1500 watt heaters and it ran them. I think the engine is almost 7HP. So if that's the case, it's a 3500 watt unit. The gen head is very oversized. Maybe it could use on of those tiny turbochargers....

guest18:
Your welcome,

From my testing I feel good conservative ratings are as follows posted below.

(The ratings posted below are estimated figures, yours could vary)
 They will put out 2500 watts continuous and 3000 watts safely for over an hour. They will handle 3500 watts very briefly but the Kubota engine is laboring pretty good. I feel itís best not to operate it at 3500 watts for no more than 1 minute.

A word of caution, when running it in very hot weather do not use antifreeze. Use water with a corrosion inhibitor. Otherwise there is a possibility that it could overheat.

I believe most of those units used the Markon BL105E head. (Rating is 6kW) This is good because I found the BL105G (7.5 kW) head I tested put out some trash at full rated load. It was fine at 75% load.

guest18:
Been thinking, with the drive pulleys set up to operate the engine at 3000 RPMís the Kubota engine should pull a 3500 watt load.

On my EB300 engine, the rating is 6hp at 2600 RPM. It will put out 2500 watt continuous and 3000 watt intermittent. How long? I donít know. Itís in hours. The surge capability is very good. It just handled over a 50 amp momentarily surge last week. The generator has no problem starting a 1.5kw nail gun compressor with the air tank having 120 psi pressure during startup. The engine handled it easily.

Your EA330 should exceed the EB300 rating with ease. My guess is it should handle a 3000 watt continuous load with a proper cooling system. And a 3500 watt load intermittent for an hour or more at a time.

The EA300 & EA330 Kubota engines put out almost the same hp. and torque. Itís so close that it makes no difference which one a person has.

Over ten years ago while I was talking to a Kubota application engineer and I ask, why Kubota increased the bore on the EA330?  His answer was, to help the engine meet new tier emission standards.

They also got rid of the jet start device that aides startup in extreme cold weather. My guess is when the device is used on startup and once the engine fires up there will be a white cloud lingering in the air until the extra fuel that was injected in the intake is used up. Itís too bad the jet start device was removed because that extra fuel definitely made a difference in cold weather. Especially if you had a dead battery and the glow plug was inoperable. Iíve used the jet start regularly on the EB300 build and the engine usually fired up the first or second try.

In my opinion, the Kubota EA, EB and EL series engines are great little engines.


(Corrected typos)

Tanman:
I agree great little engines. I have used this one to start my 240v well pump, and the startup watts on that is 5kw. It didn't even blink.

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