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Military MEP and Aircraft Gen-Sets MEP Mobile Electric Power, APU Auxiliary Power Unit and other military surplus generators.

Military MEP and Aircraft Gen-Sets

MEP 1800 rpm GASOLINE unit?


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  #11  
Old 02-18-2017, 11:35:44 AM
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Jim McIntyre Jim McIntyre is offline
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Default Re: 1800 rpm GASOLINE unit?

Like David said, look for an Onan JB or JC set. These sets were well thought of enough to be the basis for the MEP-002 and MEP-003 Diesel sets.

I also agree w/ comments above that, for most purposes, the MEP sets are actually less reliable than a commercial/industrial quality set for at least two reasons: They have too many parts, and they have not been subject to the normal test and design evolution that has to occur for a projuct to be a success in the commercial marketplace.

The Onan JB/JC sets win on both fronts here.
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  #12  
Old 02-18-2017, 03:58:08 PM
nblack nblack is offline
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Default Re: MEP 1800 rpm GASOLINE unit?

Agree with most of the previous posts. Another option. Find an old PU unit. (thinking PU-32c, or PU-286,<- although the latter starts getting overly complex) a PE 197 is a good serviceable unit, without being overly complex. All of these run little Herc' ZXA-ZXB variants, and are VERY quiet and reliable. Parts can still be had, when necessary. Waste heat can be gathered from them as well, adding to potential efficiency.
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Old 02-18-2017, 11:49:00 PM
Deveak Deveak is offline
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Default Re: MEP 1800 rpm GASOLINE unit?

I'll look into some onan units instead than.
The only thing rarer than 1800 rpm gas units is water cooled. I haven't seen a single water cooled small engine for sale online anywhere. I'm sure someone is selling older models somewhere but the newer engines all seem to be aluminum air cooled garbage.
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Old 02-18-2017, 11:58:18 PM
Birken Vogt Birken Vogt is offline
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Default Re: MEP 1800 rpm GASOLINE unit?

If you want water cooled, why not just grab some kind of car engine from a junk yard? Geo metro or something 3 or very small 4 cylinders.
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Old 02-19-2017, 12:07:32 AM
Deveak Deveak is offline
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Default Re: MEP 1800 rpm GASOLINE unit?

Quote:
Originally Posted by Birken Vogt View Post
If you want water cooled, why not just grab some kind of car engine from a junk yard? Geo metro or something 3 or very small 4 cylinders.
Thought about it but thats a heck of a lot of work. I would do that if I could find a decently cheap way of governing the rpm. A nice large flywheel would go a long way in helping but I am not sure about how the engine would handle the weight. Could put it on a belted generator head and have the flywheel on the generator head shaft. Its hard to find anything these days built to last. If it does, it costs an arm and a leg or they dont sell to the public.
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Old 02-19-2017, 11:21:04 PM
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Default Re: MEP 1800 rpm GASOLINE unit?

My advice is to keep your eyes peeled, and not to get in a hurry. I have found two PU-32C's for lesse.. first one was $250 and the second was about $300 (with shipping?) Or, If you don't need a lot of power, the old M5's have a 6 pole head and turn at 1200prm, and are water-cooled as well. (simple, and same 'Herc engine). Tell you what- I also have a trailer mounted RJC (with fuel tank) 12kw that I picked up for $300. Deals can be had. C/L is your friend, and like I said. Patience.
Good luck
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Old 02-20-2017, 12:17:00 AM
Deveak Deveak is offline
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Default Re: MEP 1800 rpm GASOLINE unit?

Quote:
Originally Posted by nblack View Post
My advice is to keep your eyes peeled, and not to get in a hurry. I have found two PU-32C's for lesse.. first one was $250 and the second was about $300 (with shipping?) Or, If you don't need a lot of power, the old M5's have a 6 pole head and turn at 1200prm, and are water-cooled as well. (simple, and same 'Herc engine). Tell you what- I also have a trailer mounted RJC (with fuel tank) 12kw that I picked up for $300. Deals can be had. C/L is your friend, and like I said. Patience.
Good luck
1200 you say? Sounds even better but how hard is it to find parts?
Also how is the power quality?
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Old 07-18-2017, 09:32:03 PM
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Default Re: MEP 1800 rpm GASOLINE unit?

Hello!
Sorry for the late reply. Have been travelling, and then trying to get caught up on things around the homestead when I get home, amidst sciatica problems. With regards to parts availability: IF (and it is a BIG IF) I needed parts for the old M5's I would either scavenge parts from another unit ( these things breed out of control), OR I would contact Jerry Biro at Hercano propulsion for(engine) parts. OR would buy their simple parts from some seller on the internet. Note: There is also currently some idiot on epay that is trying to sell parts from one for RIDICULOUS $$$, and as far as I can tell, nothing has sold in months.- he keeps relisting them, and the price is coming more in line with reality. (i.e. cheap). OK. power quality. from an M-5, remember, you are only going to get around 16-20amps per leg, but it should be smooth, reliable power. Also, point of note: the carburetor parts can be had from McDonald carb and magneto, OR!! you can replace the carb with an old B&S carb, and usually get better fuel burn rates than the original Schebler carb (that some real idiots think is worth $$$ (only worth $50 with shipping)). I have tested one of these units under load for several hours, and achieved an unloaded burn rate of .5 gal/ hr. The original carb yielded 1 gallon/hr. regards,
Noel
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Old 07-26-2017, 07:46:52 AM
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Default Re: MEP 1800 rpm GASOLINE unit?

I also suggest going with an older Onan . I have a 1968 Onan 2.5 KW for simple back-up in " Hurricanado Florida. " It is a 1968 , 1800 rpm, & still does the job !!
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Old 07-27-2017, 04:54:16 PM
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Default Re: MEP 1800 rpm GASOLINE unit?

How much power do you want? If you can get by with 3000 watts, Onan made a beautiful set called the W2C. Water cooled, twin cylinder inline all cast iron engine that runs at 1800 RPM. Streamlined / Deco styling too!
You need one (or more)


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