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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

PE-95K Genset, New to Me!


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  #1  
Old 01-09-2016, 12:49:05 PM
coolpool coolpool is offline
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Default PE-95K Genset, New to Me!

I got a running genset that was part of a package when I bought a 1952 M38Cdn Jeep. I have intentions of cleaning it up and modifying the cart it's on so I can put the original muffler back on it. It's on a US Air Force Turbine Start Cart with the turbine and all related equipment missing. I will need some odds and ends down the road like one side panel(missing), at least one gauge glass, and at least one spring loaded tiedown. I'm curious to see if this will put out any voltage. The 120v plug in seems to be a round, 2 prong twist lock design. Am I wrong? Can those ends be found still? And I'm curioius about the 24V slave receptacle; does this thing put out DC current too to be able to boost military vehicles? I think the generator data plate states 120V A/C and 28V DC. As soon as I figure out loading pics (doesn't seen to work even after I resize to 800x800.jpg) I'll post them up.
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Old 01-09-2016, 02:11:52 PM
Amax Amax is offline
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Default Re: PE-95K Genset, New to Me!

I might be able to help with one small item. A regular 120v male plug will work in that twisty one you mentioned.

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Old 01-10-2016, 07:59:05 AM
Kevin K Kevin K is online now
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Default Re: PE-95K Genset, New to Me!

My PE-95K does not have a 24 volt slave receptacle. There is an auxiliary 12 volts output protected by a 10 amp fuse. The twist lock 120 volt socket on the control panel is made for a trouble light. The generator exciter is 28 volts DC. The AC output can be wired as 120 or 240 volts by moving a jumper.

You can download a service manual here:
http://www.twinslan.net/~n0nas/manua...1945%28%29.pdf
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Old 01-10-2016, 12:41:47 PM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me!

Thanks for the replies and manual link folks. I did get a paper manual with this unit and I'll compare the two; Wonder why the manual doesn't cover the 'K' model, does one exist? I need to go over this in detail and figure out exactly what I'm dealing with. It's just too darn cold out at the moment. And I need to sort out the picture thing so you folks can see what I'm talking about.
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Old 01-10-2016, 05:59:59 PM
Kevin K Kevin K is online now
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Default Re: PE-95K Genset, New to Me!

There is a supplement to the service manual that covers the K version. I don't have a copy, but there is really nothing much in there that is necessary.
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Old 01-11-2016, 08:41:47 AM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me!

Actually I just looked at my manual and the supplement is in there. I really need to dig into this thing and learn about it. Been a busy with the Jeep first.
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Old 01-11-2016, 05:45:37 PM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me!

Pics added.
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Old 01-11-2016, 06:10:14 PM
Amax Amax is offline
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Default Re: PE-95K Genset, New to Me!

That is a thing of beauty. Please don't scrap it or sell it for junk. Get it running and let it again earn an honest living.

BTW, cutting the head will decrease fuel consumption (gallons per hour) by a good amount.
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Old 01-11-2016, 09:02:40 PM
Rich Mc Rich Mc is offline
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Default Re: PE-95K Genset, New to Me!

If this PE 95K was from the Canadian Army it may have had a significant EME Manual and modification associated with it; "ELECTRICAL V 287 Mod Instr 1" 29 June 1956. Kit Cold Weather Starting (25 pages).
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Old 01-13-2016, 03:42:50 PM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me!

I'm not sure this was in service in Canada but it does have a cold weather starting primer pump on it and it's mentioned in my supplement. My "I" and "K" supplement is dated 19 Feb 1953 from the Department of the Army. Wonder who may have the Canadian Supplement? Thanks for the tip!
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Old 01-13-2016, 05:39:59 PM
Rich Mc Rich Mc is offline
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Default Re: PE-95K Genset, New to Me!

http://www.royalsignals.org.uk/batteries-chargers.html

See items 586 & 587
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Old 01-22-2016, 10:23:34 PM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me!

Nice work Rick, thanks!
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Old 02-08-2017, 02:01:35 PM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me! Update

I found out this was bought at a cost of $500.00 for the replacement Willy's engine if the PO ever needed one. I've seen a video of it running for a few seconds and it sounded good. The unit has 3572 hrs on the clock and has a rebuild tag on the block from 1969. I started it the other day on a temporary fuel tank but only for a few seconds as the water pump leaks way too much to risk anything. I did find out it wouldn't stop with the toggle switch so I had to choke it out; probably the toggle itself is bad or the stop relay? My big question is; does it run well for the long haul, govern under load and produce AC/DC power? My plans.......IDK? I've ordered a water pump and removed it from the start cart it was on. It has the original muffler which was cut off to convert to one that worked while on the cart. I found out the fuel tank drain cock was cracked and subsequently broke off in the fitting. I removed the tank and got that out OK. Now I've started to remove everything I can in prep for paint once I confirm it runs and produces power. As I believe it's fairly complete, all I can see it needing thus far is a 12V fuel gauge, one side panel and a spring loaded latch. It has had some damage to one idler pulley (which still spins freely) and the cooling fan has been welded at some point. It looks as if an exhaust stud is broken off and the governor engine bracket it a bit off kilter too. I'll deal with all those as I move along. If I get really bored, I can try and source all the spare parts and tools that go with it too.
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Old 02-08-2017, 07:18:24 PM
Amax Amax is offline
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Default Re: PE-95K Genset, New to Me!

I have a PE-95 for backup power at my house and I have used it continually for days and even weeks at a time. They are thirsty but cutting the head as I suggested in a prior post significantly reduces fuel consumption. Very practical and reliable as is anything made for the Army. So yes, it is a worthwhile item to get running.
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Old 02-08-2017, 07:24:24 PM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me!

Roger that Amax! Any idea where to source a side panel from? I was told on another forum that the armature bearing was sealed and is now full of 66 year old grease, any concern with that?

Almost forgot, in order to repair the governor bracket and to re-install the cold weather heat stove I'll have to remove the head nuts then re-torque them, big mistake?
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Old 02-10-2017, 08:01:18 AM
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Default Re: PE-95K Genset, New to Me!

Quote:
Originally Posted by Amax View Post
BTW, cutting the head will decrease fuel consumption (gallons per hour) by a good amount.
Just out of curiosity, how much did you shave the head, and what kind of fuel savings did you get? I have a PE-95K, and with it using about 1 gallon per hour no load, it is more of a lawn ornament than a generator.
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Old 02-12-2017, 12:03:33 PM
coolpool coolpool is offline
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Default Re: PE-95K Genset, New to Me!

Hi Kevin, I see that you also have a PE-95K. My governor pulley looks like a replacement one from a hardware store, I was wondering if you could measure the outside diameter of yours so I can compare. I agree, mine is going to look a very nice shop conversation piece. I even ordered the correct paint to give this a fresh coat.
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Old 02-12-2017, 04:06:46 PM
Amax Amax is offline
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Default Re: PE-95K Genset, New to Me!

Quote:
Originally Posted by coolpool View Post
Roger that Amax! Any idea where to source a side panel from? I was told on another forum that the armature bearing was sealed and is now full of 66 year old grease, any concern with that?

Almost forgot, in order to repair the governor bracket and to re-install the cold weather heat stove I'll have to remove the head nuts then re-torque them, big mistake?
A lot of people get rid of these units for scrap so chances are you will find one soon enough. I can also send you the measurements from mine as it should not be too hard to cobble a replacement.

Not a problem. You can remove one or two head nuts without hurting anything. That is a low compression motor. Honestly, I did not replace the cold weather heat stove on mine as the unit lives inside and I did not see the need.

QUOTE=Kevin K;1360676]Just out of curiosity, how much did you shave the head, and what kind of fuel savings did you get? I have a PE-95K, and with it using about 1 gallon per hour no load, it is more of a lawn ornament than a generator.[/QUOTE]

I knew someone would ask and the hard truth is 'I forgot'. But I recall that it was quite a lot (in terms of I was surprised how much could safely be planed off). I probably got the figure from military Jeep forums.

I pulled the head and had it cut at a local auto parts store with a machine shop. Cost something like $40 - now that I remember, LOL.

The difference was astounding. It reduced my gallons per hour by a third.

I also bought a Solex carburetor to try out but it has been sitting on the shelf for years. Sigh.
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Old 02-14-2017, 03:41:58 PM
Kevin K Kevin K is online now
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Default Re: PE-95K Genset, New to Me!

Quote:
Originally Posted by coolpool View Post
Hi Kevin, I see that you also have a PE-95K. My governor pulley looks like a replacement one from a hardware store, I was wondering if you could measure the outside diameter of yours so I can compare.
4.5 inches.

Quote:
Originally Posted by Amax View Post
I knew someone would ask and the hard truth is 'I forgot'. But I recall that it was quite a lot (in terms of I was surprised how much could safely be planed off). I probably got the figure from military Jeep forums.

I pulled the head and had it cut at a local auto parts store with a machine shop. Cost something like $40 - now that I remember, LOL.

The difference was astounding. It reduced my gallons per hour by a third.
Sometime if you get a chance, perhaps you could measure the compression PSI. I imagine somewhere in the vicinity of 130 to 135PSI would make a substantial improvement.
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Old 02-14-2017, 08:44:22 PM
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Default Re: PE-95K Genset, New to Me!

Thanks for the info on the pulley, Kevin!
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