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Multi-Cylinder Stationary Gasoline Engines and Power Units Waukesha, Buda, Climax, LeRoi and others.

Multi-Cylinder Stationary Gasoline Engines and Power Units

International Harvester UD9 help


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  #1  
Old 09-17-2011, 10:44:49 PM
aloris aloris is offline
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Default International Harvester UD9 help

hello all, i was just given a 25k gen set w/ud9 eng on skid. it sat in and out doors all its life. eng rolls over, i am concerned about the fuel equiptment being damaged during start attempts with 20 or more year old fuel in them. any idea of value if this will run? most advise me to send it over the scale @.16cents per #. what say you? mike a
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  #2  
Old 09-17-2011, 11:26:58 PM
Jerry Sweet Jerry Sweet is offline
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Default Re: ih ud9 help

If it's a UD 9 with a Palmer generator (alternator) flanged up to it,it is worth keeping.
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  #3  
Old 09-18-2011, 12:42:57 AM
aloris aloris is offline
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Default Re: ih ud9 help

js, it has a electric machinery 1200 rpm gen end. mike a
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Old 09-18-2011, 09:01:37 PM
Bud Tierney Bud Tierney is offline
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Default Re: International Harvester UD9 help

A 92 Clevite bearing catalog says the UD9 uses the IH D350 engine...which that catalog says is also used in:
Some WD9s and WDR9s, and all Super WD9s and WDR9s (wheel tractors);
Some TD9 crawlers;
600D, 650 and 650D tractors.
That is probably not a complete list; if no other interest shows up, and you don't keep it you might put it on one or more of the IH sites/forums.. Good luck.
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Old 09-18-2011, 09:42:08 PM
Jerry Sweet Jerry Sweet is offline
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Default Re: International Harvester UD9 help

I have TD-9 crawler.It sat for about 12 years befor I bought it.The diesel side of it was O.K.,but I had to clean the gasoline tank and clean and replace the gaskets in the carburetor.I also had a U-9 (gasoline) engine with a Palmer generator on it.They are both very good engines,you can't hardly wear them out.
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Old 09-19-2011, 01:12:37 PM
Bud Tierney Bud Tierney is offline
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Default Re: International Harvester UD9 help

Was looking for something else in an old catalog this AM and saw a UD9 listed in an Austin-Western grader...I'd forgotten IH also sold their U and UD power units to various eqpmt builders.
A quick eyeball finds them in various Adams, A-W, Buff-Spgfld, Galion and Riddell graders/road eqpmt pieces, a Bucy-E shovel and a couple Hough's, as well as the Palmer light plant, and probably other light plants, as yours, so if you don't keep it and have no takers you might also post it on hcea. Good luck.
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Old 09-19-2011, 05:17:11 PM
Jerry Sweet Jerry Sweet is offline
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Default Re: International Harvester UD9 help

They have a SAE flyhheel housing, and can use a Rockford or TwinDisc PTO (clutch).
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Old 09-20-2011, 12:11:33 AM
aloris aloris is offline
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Default Re: International Harvester UD9 help

just got a ops and a parts print from prev owner who wants to hear it run after housing unit in his garage for 10yrs. the prev owner did a thorough job of cleaning carb,tank and weather proofing all lines and openings. he also kept safe all the parts and fasteners, even all the tin. it is unusual to get an old hunk of iron under those circumstances. i will try to get some pics up. mike a
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Old 09-20-2011, 10:57:09 AM
Jerry Sweet Jerry Sweet is offline
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Default Re: International Harvester UD9 help

With the service and operaters manual,and if he cleaned the gasoline system,you shouldn;t have any trouble starting it.You might want to drain and replace the old diesel fuel,follow the instructions on bleeding air from the diesel system and give it a try. Good luck.
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Old 09-20-2011, 12:26:10 PM
BHoward BHoward is offline
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Default Re: International Harvester UD9 help

I have a ud6 with a 1200 R.P.M. Generator on it. No I.d. Plate on the gen. I thought mine was a 25 K . Don't scap your's
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Old 09-21-2011, 10:49:36 AM
aloris aloris is offline
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Default Re: International Harvester UD9 help

bhoward, is that a 6 cyl? we had use of a TD15 crawler w/6cyl that recently went over the scale . IH has little left of spares for those engs. as for the generator, i would bet its a 40 k. mike a
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Old 09-21-2011, 10:57:55 AM
HBurk HBurk is offline
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Default Re: International Harvester UD9 help

UD6's, and 9's are 4 cylinder.
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Old 09-21-2011, 12:24:28 PM
BHoward BHoward is offline
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Default Re: International Harvester UD9 help

It' a.4 cyl. The gen is 36" long and 21" diameter . Has a dc exciter on the back . Nice and quiet running at 1200 r.p.m. I run it on used vegy oil after starting on diesel . Runs nice. Bill
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Old 09-21-2011, 12:53:58 PM
Jerry Sweet Jerry Sweet is offline
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Default Re: International Harvester UD9 help

If it is a seperate DC generator,it sounds like it might be a palmer.they had a little DC generator to excite the alternator.Some of them mounted on top of the alternator and were driven by a Vee belt.
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Old 09-21-2011, 05:42:42 PM
BHoward BHoward is offline
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Default Re: International Harvester UD9 help

It's part of the big generator but smaller diameter on the back end
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Old 09-22-2011, 02:03:00 AM
aloris aloris is offline
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Default Re: International Harvester UD9 help

bhoward, same as mine. does the dc end have to be flashed after a long period of sitting? mag off, impulse coupler is stuck. plugs out to oil up, plugs look like oil burner igniters. are they available? can i use modern plugs? mike a
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Old 09-22-2011, 10:55:06 AM
BHoward BHoward is offline
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Default Re: International Harvester UD9 help

Hi Mike, my mag. Was weak so a friend gave me a distributor off a ud9 that he wrecked . You could always turn the mag. Into a distributor by adding a coil. Have done it lots of times. The ignition system is only used for a few minutes when starting so I'd try cleaning plugs. Mine sat for years and the gen worked right away when istarted it. Good luck Bill
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Old 09-24-2011, 04:19:55 PM
Mike Hole Mike Hole is offline
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Default Re: International Harvester UD9 help

Aloris, Champion D89D is the current spark plug # that will work in the IH UD and TD engines. Good luck with your project.

Mike Hole
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Old 12-05-2011, 09:57:57 AM
dkamp dkamp is offline
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Default Re: International Harvester UD9 help

I have an EM generator head to fit one'a these machines... guy I bought it from said his grandpa bought the machine from government surplus, took the engine off to fit it to a sawmill, and put the genhead in a barn for 40 years.

Wish I had the engine (snif)...

I don't remember the mil-spec reference number, but they came with both Palmer and EM heads. Palmer used a belt-driven exciter. The EM genhead's exciter is an extension of the main generator frame.

The nice thing about these, in comparison to many others, is that it's a 1200rpm unit, not a 1800 or 3600rpm unit... they're big and heavy, but extremely quiet. The output rating seems 'light' considering modern units, but that's because they're rated 100% duty cycle, and if you look closely, you'll see that they have an overload rating. Dunno what this one is rated (been a while since I looked at my tag), but it's usually something like 150% for 24 hours.

That engine will run... the fuel that's in the rails probably ain't great, but I'm sure it's better quality than what we have now... after cranking it over a few turns, it will clear it out. If you can get her started up on gas, she'll be warm enough to burn the crud out.
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Old 12-07-2011, 11:38:12 PM
aloris aloris is offline
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Default Re: International Harvester UD9 help

dkamp, thread has slid down the page and the g set sat under cover outside the last few weeks. had a friend over last sat. to help start up. looked,sprayed,checked and hooked battery and got it to run a second or two. need to freshen mag and repair day tank to run it long enough to temp up. all looks clean inside eng. will get back to it this sat. i have high hopes for the gen end because i got 2 old lincoln motor-generators that can be run w/o crossing through the demand meter. mike a
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