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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

It's a thumper...


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  #1  
Old 03-29-2009, 10:35:29 PM
Patrick62 Patrick62 is offline
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Default It's a thumper...

Today I hooked a gas line to the carb, and fired the old beast up.
John R. Hollingsworth co, ser #467

With a crankcase full of 10W40, it did not even smoke! Not bad for a 1964 engine!

Oh, as a bonus it makes power. The CPS meter is interesting...

Now I will setup a proper gas tank for the thing, and get the airfilter back on it.

-Pat
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Old 04-01-2009, 10:46:31 PM
Patrick62 Patrick62 is offline
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Default Re: It's a thumper...

The project continues, air filter sorted out.

The dreaded fuel system. Original fuel pump, shot. No wonder they bypassed it. I removed it and covered the hole. The engine runs well when gravity feed fuel. I have a pulse operated fuel pump that I thought I could get to work. Not quite... Not exactly sure what I am going to do for a fuel system now.

My question for the masters of military antiquity, did this genny have a gas tank when new? Or did they simply hook it up to a jerry can?

I may end up designing some sort of clamp on gravity feed tank...

-Pat
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  #3  
Old 04-02-2009, 08:34:43 AM
K D Redd K D Redd is offline
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Default Re: It's a thumper...

As I do not know what engine your unit has and what electrical system, You could use a 12 volt Electric fuel pump if you have a 12 volt electrical system. The vacuum pulse fuel pump only work well on single and twin cylinder engines. If the fuel pump you have is one of the small, about 2 inch, square ones, you can still buy them and swap parts around if the arm design of your is not available.

Kent
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Old 04-02-2009, 09:24:10 AM
Patrick62 Patrick62 is offline
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Default Re: It's a thumper...

Sorry for the confusion, it is a single cylinder Wisconsin. Magneto ign.

It should be possible to locate an origional fuel pump, perhaps I have not tried hard enough yet.

It is possible that the pulse pump I have isn't working correctly. I have not taken it apart to see.

Building a small tank to clamp to the top seems like the simplest solution.

I discovered a electrial gremlin yesterday as well. I had a fair load plugged into it, and I was losing power down to about 1/2 or less and then it would fluctuate. Something is odd, I will find it.

-Pat
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Old 04-03-2009, 08:43:45 AM
K D Redd K D Redd is offline
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Default Re: It's a thumper...

Pat,

You say the engine is a Wisconsin. Is it a true Wisconsin OR a Military Standard Engine built by Wisconsin?

Kent
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Old 04-03-2009, 12:20:47 PM
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Talking Re: It's a thumper...

You wouldn't Happen to have a Model JHGW3B by Hollingsworth, Stock #6115-778-6004, by chance? Wisconsin Engine Model# MAENLD, turning a 3Kw Kato Model# 3MSW3.
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Old 04-03-2009, 06:37:00 PM
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Default Re: It's a thumper...

"You wouldn't Happen to have a Model JHGW3B by Hollingsworth, Stock #6115-778-6004, by chance? Wisconsin Engine Model# MAENLD, turning a 3Kw Kato Model# 3MSW3."

You know, that's what I hate about this site - never any specifics!!
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Old 04-05-2009, 10:28:49 PM
Patrick62 Patrick62 is offline
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Talking Re: It's a thumper...

That is ➙exactly what I have!

Today I ran it again, for a half hour. Starts easily, and runs like a dream.
Generates power to a point. Hooked my digital freq meter on it, and it is quite happy at around 50 hz. Increase speed to 55 hz and power starts to drop out... crank it up to around 60 hz, and the lights are off more than they are on.
I am going to assume this is a issue with the brushes. I will remove the cover and have a nice long look, and do a bit of polishing of the armature and slip rings. The brushes are not worn out, this I already checked.

It is quite a beast, and I am going to enjoy running it once in awhile. My shop is off the grid so if I want to run equipment I have to generate the power.

-Pat
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Old 04-06-2009, 01:30:12 AM
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Talking Re: It's a thumper...

Well that's "Way Cool".... Now I know of two folks that have one of these gensets. You and "Me"... I have the -20 TM for it, if your interested. Just shoot me a PM with a valid eMail address, and I can send you it, in .PDF format. If you should come across the -10 TM, I would appreciate a copy.
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  #10  
Old 04-12-2009, 09:33:52 PM
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Default Re: It's a thumper...

I was tinkering today. I have obtained two cans of flat camo paint. This thing deserves the "best". Atleast way better than the safety orange I wire brushed off it. Before I paint it up, I needed to figure out the fuel tank situation. They gave me a small tank with it, painted white, under the white was orange, under that was olive drab! No kidding.... I figure out how to mount it, and start sorting that out. Fuel pump again. Gravity fed the engine so that I could play with the pulse pump. It worked today, so that is what I am going to use to get gas from here to there! (it is the little things that make projects fun).

Anyway, I will have to get the camera out there for some pix...

-Pat
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