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  #1  
Old 09-02-2008, 03:14 AM
dkveuro's Avatar
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25kw diesel generator ID needed.

I found a ( seized engine,) DELCO 25KW 3Phase, 230 volt, three cylinder, GM Diesel generator on a skid.
Anyone know anything about these?

Looks to be about 30 plus years old at least.
I don't know anything about gensets....especially American ones.

I need to know something about the output.
What could I expect to run off it?

I know there's a lot of knowledgeable folk here, so I'm open to any comments or suggestions.

I have a complete Mercedes 240D Factory Exchange with 38,000 miles
in an old rusty 123 chassis I'm parting.

Was wondering if it would be worth having an adapter plate made at KEP
to install the OM616 on it.........

.......or......find a bigger KW generator without motor or with a bad motor.

Last edited by dkveuro; 09-02-2008 at 03:30 AM.
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  #2  
Old 09-02-2008, 03:45 AM
ForcedInduction
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The 616 has 2x the power needed for that generator (25kw=33hp), but not at 1800rpm. You would need a reduction system to get the engine around 2700rpm (1.5:1). Another problem is the injection pump governor will not maintain a steady RPM as the load changes.
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  #3  
Old 09-02-2008, 10:52 AM
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Quote:
Originally Posted by ForcedInduction View Post
The 616 has 2x the power needed for that generator (25kw=33hp), but not at 1800rpm. You would need a reduction system to get the engine around 2700rpm (1.5:1). Another problem is the injection pump governor will not maintain a steady RPM as the load changes.
Now in the daylight.........

The rating on the makers plate says 60 cycles @ 1200 rpm .

Engine is a Detroit 2-71.
Model #5399.
20KW @ 80%.
25KVA 3 Phase.
60 Cycles @ 1200 rpm.

I could get the OM616 to turn at 2400rpm and run it 50% underdrive.
I can get a throttle control too.

Should I find another higher output Genny ?
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  #4  
Old 09-02-2008, 10:56 AM
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Quote:
Originally Posted by dkveuro View Post
I found a ( seized engine,) DELCO 25KW 3Phase, 230 volt, three cylinder, GM Diesel generator on a skid.
Anyone know anything about these?

Looks to be about 30 plus years old at least.
I don't know anything about gensets....especially American ones.

I need to know something about the output.
What could I expect to run off it?

I know there's a lot of knowledgeable folk here, so I'm open to any comments or suggestions.

I have a complete Mercedes 240D Factory Exchange with 38,000 miles
in an old rusty 123 chassis I'm parting.

Was wondering if it would be worth having an adapter plate made at KEP
to install the OM616 on it.........

.......or......find a bigger KW generator without motor or with a bad motor.
There were/are lots of four cylinder MB diesels used to run reefer units on 40' freezer containers. I wonder if they had the proper governor, but a reduction gear would still be needed. I run a 2.9KW (3600rpm) generator off a single cylinder Lister (1600 rpm) getting the proper reduction with double pulleys. 25 KW might be a bit much with pulleys tho

Too bad you cant get the Jimmy going.
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  #5  
Old 09-02-2008, 11:08 AM
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parts should be easy to source for the detriot. maybe you want to try to revive that one? if it is seized from sitting, maybe fill the cylinders w/ diesel and let it set a while, try cranking over by hand.

if it has been ruined from running out of oil, etc, then maybe it would not be worthwhile, but you sure could look into parts for it. should be available worldwide.
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  #6  
Old 09-02-2008, 11:34 AM
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Quote:
Originally Posted by mobetta View Post
..................................
if it has been ruined from running out of oil, etc, then maybe it would not be worthwhile, but you sure could look into parts for it. should be available worldwide.
Apparently engine was left outside with intake open and blower filled with water.

Searching around it seems this unit was used as lighting and house power in the oil patch. I guess they used a transformer to run the 110v stuff.
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  #7  
Old 09-02-2008, 11:41 AM
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If its the 71 series, (3 71) which sounds about right for 25KW, I would try and fix it, that is if you really need something that big.
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1985 Euro 300TD 5 spd 218K
1985 Euro 240D 5 spd 120K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

Giving money and power to government is like giving whiskey and car keys to teenage boys. P.J. O'Rourke
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  #8  
Old 09-02-2008, 11:50 AM
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The 71-series engines are pretty easy to find parts for, 2cyl specific parts might be a little more difficult.

Your bigger problem is that it is a 3-phase output. You cannot power normal household (single-phase) loads from that generator directly. If you can find a phase converter (transformer) to convert from 3-phase to single-phase, you're golden, but that is typically a pretty scarce and expensive item.

The 3-phase output is usually for industrial and larger electric motors.
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  #9  
Old 09-02-2008, 04:51 PM
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I have to side with trying to fix it. Detroit Diesels parts are cheaper than most and have a lot of after market makers.
The mentioned water. One of the problem with Detroit Diesels is they have steel Pistons that are plated (or if it has Cross Head Pistons the Piston Skirts are Aluminum and the Heads are Steel). If the water gets into the cylinder from sitting out in the open they eventually rust to the cylinder.
The good news is that the Cylinder Liners are slip fit into the block bore. It is possible to remove a Cylinder Liner with the Piston/Connecting Rod still attached.
Any way it will cost you nothing but your labor to take a look.
A lot of Detroit Diesel Gen Sets are used by the Military; yours may be one of them. Also they have web sites for things like Military Trailers and other such things they may even have some sites for the Gen Sets.
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  #10  
Old 09-02-2008, 07:21 PM
ForcedInduction
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Mmmmmm, a 2-71 would make a great Geo Metro project with a turbo....
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  #11  
Old 09-02-2008, 08:14 PM
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Fix it. These engines are dead easy to overhaul. They are a bit noisy to run but very rugged.

The 3 phase should not be a problem. I have a 20kw Lima with a 3 cyl. Yanmar Diesel. It can be wired for 120, 240 single of 3 phase, and 480 3 phase. I bet you can get a wiring diagram off the net or at any Stewart and Stevenson shop.
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  #12  
Old 09-02-2008, 11:41 PM
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Quote:
Originally Posted by kip Foss View Post
Fix it. These engines are dead easy to overhaul. They are a bit noisy to run but very rugged.............................
My buddy next to me said it would take $2500.00 in parts and machining to bring it back to new...that's just the engine. It is seized solid and looking in the blower housing we can see water over the vanes ....blower sits on it's side on the side chest of the engine..

He's GM Detroit served and certified from United Engines in Oklahoma City.
Did all the GM schooling when he was a 20 something. He used to rebuild the 16V92 engines for Halliburton.

Anyway...he reckoned about 5.5k to 6k if it was in his shop....this still does not mean the genny works.

I think I'll pass on this one....I know it's free an' all that, but it is a bit more than I need to start learning about.

I was going to rebuild it for my friend Phil at Bob's Pig Shop so he could feed it grease and run his electrics at the shop...several refrigerators and 5 ton a/c etc etc.... he's running his 1983 4 speed 240D on straight veggie now while the weather is warm.. ...says he can't burn all he uses in the restaurant. He claims he generates around 15 to 25 gallons of grease every week.

A friend of his is running his 1988 300D locally on it and they still have grease over....I think I might buy me an early Dodge Cummins

Ye gods...listen to this racket..
http://www.youtube.com/watch?v=GoawU3cOD10

Even at idle it makes a racket. This is same engine but without genny.

http://www.youtube.com/watch?v=MhPQCVQPORI&feature=related


.

Last edited by dkveuro; 09-02-2008 at 11:58 PM.
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  #13  
Old 09-02-2008, 11:56 PM
ForcedInduction
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Another engine saved from grease abuse!
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  #14  
Old 09-03-2008, 02:13 PM
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Harbor Freight used to offer 20kw gens. w/ GM engines and electric panel for $4,500.
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Old 09-03-2008, 02:13 PM
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