GPW Engine from a genset.

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Adam
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GPW Engine from a genset.

Post by Adam » Sun Sep 06, 2020 9:00 pm

Originally from this posting

Pe95 generator with gpw motor for sale
viewtopic.php?f=129&t=317647

I bought this genset for the engine, GPW 537. Although the engine has a major issue with it, I am going to try to save her. After a good 2200 mile road trip, she is at her new home.

If salvageable, she will go into GPW 260. This has been in my garage in baskets,since sometime around 1995. Way before affordable digital cameras.
viewtopic.php?f=4&t=37526&p=214248#p214248



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Adam
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Re: GPW Engine from a genset.

Post by Adam » Sun Sep 06, 2020 9:10 pm

We are going to try to get the genset engine running. I know she will turn 2 full turns with out getting stuck, and there is compression. Today we will get rid of anything that is in the way, thats the fuel tank, tool tray with giant mouse nest, control panel, middle lift ring and support. we will try to crank her using the generator section of the genset and then take a compression test. This is a PE95, used 2, 6Volt batteries when in military service. I will crank her with a 12 volt battery through the existing solenoid.
Factory solenoid has a little cap you can take off and push the button down and activate the electrical contact to make her crank.


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parker007
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Re: GPW Engine from a genset.

Post by parker007 » Sun Sep 06, 2020 9:33 pm

i would be curious what date stamp is? that would be cool if it run.

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Re: GPW Engine from a genset.

Post by Adam » Mon Sep 07, 2020 7:09 pm

Ok, got all the junk off today, left the original oil pressure gauge and temp gauge.
Pulled the plugs, they look good for how old they are.
Opened the oil drain valve to see if any water is in the pan, no water there.
Had to free up the brushes in the end unit of the generator section to get her to crank. Nothing blowing out the cylinders that should not be in there.
130# compression in #4. that's as found, ambient temp, with no oil in cylinders. 120, 100 and 90 for the others. Will see what they read after she runs, if she runs.

Adam
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Re: GPW Engine from a genset.

Post by YLG80 » Mon Sep 07, 2020 11:18 pm

Adam wrote:
Mon Sep 07, 2020 7:09 pm
Will see what they read after she runs, if she runs.

Adam
Thrilling suspense. Please keep us posted. :D
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Re: GPW Engine from a genset.

Post by Adam » Tue Sep 08, 2020 11:41 am

Points were a mess, could not remove the whole plate assembly due to the stationary contact support being too big, plus the little electrical contact screw was stripped. ended up bending the points to remove the plate, will put a different plate in that has good points on it. Ever try sanding the point contacts with sand paper, that only works if if the unit sat for a few months and there is a little corrosion on them. Manual says to run the unit every month for a bit, wonder if anybody runs their jeep engines every month, plus you mess up the contacts by taking too much off them, wonder if the points are original like this early brown cap with the vent hole offset from cap clamp.

Looks like dist is in upside down too, wonder how oil will go up that oil fill.

first fire with start fluid, ran 2 seconds, gosh that smoke stinks, not oil, not water, not antifreeze, wonder if this was storage prepped with atf or something.

Will hook up a fuel tank and get the carb and fuel system up and going before going any further.

adam
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Re: GPW Engine from a genset.

Post by Adam » Wed Sep 09, 2020 3:28 am

Fuel pump works, steel cap right side hand pump, unit will run with genset carb, no accelerator pump working though.

plenty of oil, temp gauge, in cent. no way its running at 120 something, but no thermostat in there or its stuck open. Did not test the temp gauge yet, or the oil either with a known unit. and for sure no 9v batteries for the ir heat gun. will put a accurate *F gauge on her to start with. Will also put in some 30wt and a new oil filter and run her for a few more hours.

ran 2 gallons of fuel through her, over a gallon a hour with no electric load. smoke stopped, sounds good. No boil over, antifreeze looking stuff, who knows what it is. Will get that out of there and flush her a few times with fresh water. I can recycle the antifreeze, will evaporate the water stuff on a propane cooker, not going to dump it on the ground. Little acid rain wont hurt anybody. Ya know, they are burning coal in homes up here now, I see non catalytic coal burners for sale again, looks like we are going backwards. No wonder it takes tons of lime per acre to get farmable land.

This is going to go into a jeep so some of the stuff on it will go, First will be the governor, then I will do something with the thermostat, If i have a long radiator hose I will put a jeep thermostat outlet on her. Also the cooling fan, its a reverse direction fan which keeps the air and debri from blowing in your face as it blows through the radiator, however its starting to get cold, the carb is sweating, soon it will start to freeze. This unit did not have a cold weather operating kit on her, you wont notice this on a jeep as the hot air from the fan keeps the carb warm, plus the heat valve under the carb is stuck open
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Re: GPW Engine from a genset.

Post by YLG80 » Wed Sep 09, 2020 3:48 am

French thermometer :wink: !
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Restored as 1st Army 759th LT B21
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Re: GPW Engine from a genset.

Post by Adam » Mon Sep 14, 2020 4:12 am

Time to get the Oil and water out of her, Took her into the garage with a concrete floor as these things make a mess when draining them. Engine coolant petcock is missing, just has a big plug in it, that will spray all over. Radiator is in a place that you need to remove the small side plate to get a funnel in there to keep this stuff off the floor. Oil drain has the piping and valve that used to extend out of the unit but most of that is gone. She is now up on 6x6 blocks, so I can get a bucket under her.

Governor is not going to be needed so removed that along with its bracket and oil feed line from the oil filter and return to the valve cover. Bracket was held on with 1 stud and nut and 1 head bolt, Water was not drained yet, so i didn't take out the head bolt, just put a piece of metal under the bracket and cut the bracket off near the head bolt, Could grind it a little smaller and make it look like a washer, or remove the bolt, it is into the water jacket though so coolant will come out, and depending on how long that bolt has been in there, it could snap, or the crud on the end could mess up the threads. Cover will be replaced later and oil filter piping will be returned to a jeep configuration. Pipe for oil drain will be replaced with the correct plug. Governor belt is removed, also the pusher fan, its bolts and spacer are not going to be used in a jeep, just the normal 4 blade steel fan and some shorter bolts.

For sure there was no thermostat in there,, will replace that genset outlet with a jeep unit. Need to flush the engine a few times, gonna end up with 10 gallons of gunky stuff.

Also got rid of the extended fuel pump primer gismo, must of been a PO addition. Genset intake manifold, thin runners and no threaded plugs or bosses on these early ones. That manifold will get changed later, along with the carb, velosity governor and heat shield and pvc will be rerouted.

Another item removed was the exhaust adapter and electric heat control for the choke, from the exhaust manifold, it points to the front and wont take a standard ex. pipe anyway,, It was coated internally with oil, also it was not cracked or welded.

Adam
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Re: GPW Engine from a genset.

Post by Joe Gopan » Mon Sep 14, 2020 6:26 am

Some of these PE-95 Units did have a remote pulling set up to operate the fuel pump primer from up top.
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Re: GPW Engine from a genset.

Post by Adam » Mon Sep 14, 2020 8:00 am

You can see it in the first picture of the previous post, I have never seen one so I dont know, dont see it in the limited parts books here either.

Adam

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Re: GPW Engine from a genset.

Post by Adam » Tue Sep 15, 2020 10:53 am

Working on changing the oil today, first time on a strange unit. First surprise, pipe adapter to oil pan is welded to the pan, so much for putting a stock oil plug in there, used a 1/2" pipe plug for now, oil pan will get changed.

Took out the oil filter, it looks new,, no gunk in bottom of canister, hopefully the wife wont miss her turkey baster. put in what filter I had on the shelf. someplace there is a post about how different filters affect oil pressure, I dont know, seems it all points to that little hole in the return pipe. I will find that post and see for myself how that works out in the future.

Got rid of the governor feed line from the oil return under the oil canister, you need to remove the bottom fitting and plug it, or remove both fittings and source the correct size brass elbow.

turns out i have no 30 wt ND oil, only 30 wt diesel oil, most likely detergent, even though its only for a few hours use I dont need to wipe off all that stuff stuck in the block with that. Soo, jumped the gun, pulled off the valve inspection cover and checked for gunk buildup, None at all, however the block walls felt gritty in there. Cleaned everything out with carb cleaner, washed it all down into the oil pan.

The valve cover will go away as it has an extra hole for the oil return from the governor, it isnt F marked and you could weld it shut, but I need a F marked one, along with the draft tube pieces welded on the cover since this is an early engine, Dipstick tube will go away as well for an early ford unit. No need for the pcv valve setup either, will just plug up the hole for that till I find an early manifold, I will pull the pan with the engine sitting in its normal position so that stuff doesnt dump into the engine. Then clean out the insides of her, also check what is ford in there, along with the date on the oil pan rail. And maybe take a peek at a main and rod bearing to get an idea of how many hours are on her.

Gonna have to turn her over for that, so I will pull of the generator section, no antifreeze in there so just disconnect the hoses and take her off her stand, within the next few days. Will put a starter and bell housing on there to run her with.

Ever put one of these engines on a engine stand, the casting around the top two bolts dont seem too strong, looks like they will break right off. May as well just pull off the incorrect intake manifold, fix the exhaust manifold and convert that generator carb to a jeep carb.

This is what you will have to do if you buy one of these and plan on putting it in a jeep. unless you have a bunch of parts, and lots of time, J.E.E.P. will really mean just empty ........ However i bought this for the serial number so she needs to be saved and is there really a budget? Yes dear, an oil pan is only 15 bucks, shipped ;)
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Re: GPW Engine from a genset.

Post by sjalbert » Tue Sep 15, 2020 1:19 pm

I've got two MB Engines that have been sitting on engine stands since March 2019. One of them came out of a generator 10+ years ago. I've had it for 7. It's in range to have been original to my jeep so eventually I'll put it back together :)
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