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Onan 10JWC-3E Found a New Home


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  #1  
Old 10-02-2016, 03:31:08 PM
Charlie Foxtrot Charlie Foxtrot is offline
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Default Onan 10JWC-3E Found a New Home

Found in a barn. looks intact. will post updates.
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  #2  
Old 10-02-2016, 05:26:12 PM
Handyhiker1 Handyhiker1 is offline
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Default Re: 10JWC-3E found a new home

Looks cool!! Nice find.
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Old 10-02-2016, 09:26:57 PM
Charlie Foxtrot Charlie Foxtrot is offline
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Default Re: Onan 10JWC-3E found a new home

All threaded fasteners presently soaking in ATF w/solvent. Reportedly this was in-service & run-able when removed & relocated to a rural barn. Has a 6' whip of modern liquid-tight w/#6 THHN still attached. Ammeter glass broken & top rad tank damaged (looks like a bucket from a loader creased it while relocating it). Barn owner bought it for the jeep engine. Ended up not needing the engine so it sat. Clean up day came & I got lucky. Wasn't looking for genset but rather an older CJ jeep to rebuild/refurb for grand daughter.
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Old 10-02-2016, 11:41:27 PM
yellowlister yellowlister is online now
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Default Re: Onan 10JWC-3E found a new home

Hopefully you do not split it up.. that is much less.common than a jeep..
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Old 10-03-2016, 09:47:29 AM
HBSaunders HBSaunders is offline
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Default Re: Onan 10JWC-3E found a new home

got a similar one with jeep engine but a 42 vintage. runs well , as some earlier have said is a gas hog, howard
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Old 10-03-2016, 10:31:24 AM
Dale Russell Dale Russell is offline
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Question Re: Onan 10JWC-3E found a new home

Just wondering, Would that be a PE 98? I was in Japan in 52 & 53 where we used a Generator for Power for our Meteorology Equipment that was a PE 98. Seems like it had a 4 Cyl. engine like a Jeep. Dale
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Old 10-03-2016, 04:03:29 PM
Charlie Foxtrot Charlie Foxtrot is offline
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Default Re: Onan 10JWC-3E found a new home

Unknown model
Engine Generator Set data plate states model no. 10JWC-3E, Spec 305A, Contract No. DA 36-109-ENG.3516

Gasoline Engine H.P. 32 at 1800 R.P.M. 4 Cycle,
MF'RS. Type 805.750 Manufacturer Willys Overland Motors, Inc

Generator Model No. 10JWC/46, A.C. Volts 125/250 K.W. 10 P.F. 0.8 Amperes 50 Phase 1 Cycles 60 Conrt Duty 40*C Rise R.P.M 1800

Willys Jeep L134 engine, 6 Volt generator & starter, Magneto ignition system

Finishing up an annual on small AC, then oil change tonight, 6 volt battery, load bank on the output mains & test fire.
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Old 10-03-2016, 05:47:18 PM
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Default Re: Onan 10JWC-3E found a new home

Remember these old Jeep engines were about 5 to 1, maybe 6 to 1 compression ratio. No wonder they weren't fuel efficient..... But they ran about forever. Nice score. That is a nice survivor, I'd just clean it up and check it out good and run it.
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Old 10-03-2016, 09:50:01 PM
Charlie Foxtrot Charlie Foxtrot is offline
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Default Re: Onan 10JWC-3E found a new home

My intention is to not split it up. It was a working generator when it was pulled & relocated to a barn.

As promised, I finished the annual on the CTSW, pushed it out of the hangar and off to it's owner. Walked over to sleeping beauty, grabbed a rag, pulled the dipstick, nuthin' showin'. Poured in some dino juice, grabbed a golf cart battery & jumper cables and hooked it up. Turned the key, heard a click (the voltage regulator) and pushed the starter button. Just a little sizzle & crackle - the battery needs a charge. Charger cooking, grabbed a diet soda, and clickety-clack on the key board. Update to follow.

Two pops later & I couldn't wait any longer. Jumped it off of an old Benz sitting next to it. Got 90 degrees of rotation before the battery gave up (won't overcome the compression). Will charge overnight, pull plugs and rock the crank some more while giving it some ATF from above. BTW it rolled about 90 degrees by hand before I gave it a try w/battery.
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Old 10-05-2016, 09:42:17 PM
Charlie Foxtrot Charlie Foxtrot is offline
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Default Re: Onan 10JWC-3E found a new home

Pulled the plugs, removed the radiator (drained coolant - still green), squirted some atf in the cylinders & slipped a socket on the crankshaft nut. I can roll the crank 540 degrees rotation then it stops (cw & ccw). It feels like something is trapped in the bell housing or between the armature & winding's. Contemplating splitting the gen from the engine. Can anyone point me towards a manual for this thing? Thanks in advance.
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