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Vintage Diesel and Oil Engines Fairbanks Morse, Lister, Petter, Witte and other pump injected Diesel oil engines.

Vintage Diesel and Oil Engines

Kubota Z482


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  #1  
Old 09-15-2012, 07:42:31 PM
Dieselfan Dieselfan is offline
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Default Kubota Z482

Good Evening,

While at an engine show / swap meet today i came across a kubota Z482 for sale, and so I bought it. It does need some parts like glow plugs, dip stick, thermostat and housing, and a few other things. The only background I could get on it was it came from an refrigerated truck that was damaged by a falling tree.

Finding info for this engine other then the usual horsepower, weight etc. is proving to be a challange, and being new to a kubota doesn't help. What would anyones opinion on this engine be? Does anyone know what the functions of the 2 levers are on the injection pump? Is there a website i can download a parts manual with part numbers?

Thanks and photos to follow shortly.
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Old 09-16-2012, 07:46:16 PM
cornbinder89 cornbinder89 is offline
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Default Re: Kubota Z482

one is speed control, and one is engine stop. The top lever is the stop IIRC while the one closest to the pump is the speed control. That family of engines also included two three cyl models.
I find that Kubotas are well made and with good care will last a long time.
I have a 722 three cyl I used for a truck APU.

no idea on where to find parts on line, but it still is a production engine and parts should be no problem.
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Old 09-17-2012, 07:08:42 PM
Dieselfan Dieselfan is offline
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Default Re: Kubota Z482

photos of the find. Apologies for the messy workbench.
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Old 09-18-2012, 05:18:05 PM
cornbinder89 cornbinder89 is offline
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Default Re: Kubota Z482

Yep, just like the 722 execpt that one has the deep sump for extended running. I thought I had the part number for the thermo houseing (I needed one for mine) but I can only find the pictoral diagram and not the part number sheet that goes with it.
That is called the mini series and they were real common in arrow board, man lifts and small equipment. Any Kubota dealer should be able to get parts, Tractor dealers will NOT be able to look up the parts (but can get them if you have the number) you need a Kubota engine dealer, to look up the part number.

That one is missing the "lift pump" on the side of the injection pump (there is a block off plate where it mounts) so you will need an electric lift pump, or gravity feed to test run. It is not a good idea to gravity feed a diesel all the time, for many reasons but you could test run it that way.
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Old 09-18-2012, 06:13:07 PM
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Default Re: Kubota Z482

Here is a Kubota web site that I am on. Lots of knowledgeable people. http://www.orangetractortalks.com/forums/
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Old 09-18-2012, 07:58:06 PM
Dieselfan Dieselfan is offline
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Default Re: Kubota Z482

cornbinder89,

thanks for the tip on not feeding from gravity full time, I did not know that. The intention is to use electric lift pump in whatever application I decide to use it in. I think the pump I have is good for 4 psi. But as of yet, I have no idea if it will even fire. Expecting glow plugs to come in next week. putting finger over glowplug hole and spinning the crank by hand seems to have good compression, but with no adapter for my gauges I cant say for sure.

I did manage to get both outlets of the injection pump working. Both injectors pop at around 1950 psi. Oil pressure comes up to 40 ish by hand cranking (speed handle on the crank nut).

Feeling optomistic it will run.

Question, under the injuction pump, does your engine have a drain valve of some sort? What does it drain?


Motorhead:

in the forum, are they ok with newbies to kubota engines? Thanks for tip.
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Old 09-18-2012, 08:37:15 PM
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Default Re: Kubota Z482

Quote:
Originally Posted by Dieselfan View Post
cornbinder89,

Motorhead:

in the forum, are they ok with newbies to kubota engines? Thanks for tip.
Why shouldn't they be? We were ALL newbies at many things in our lives at some time or another.
If I encounter some wise a$$ on any forums, I figure I didn't need his advice any way.
There are many people out there who just want to help.

If you don't ask then how do you learn? Go for it!
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Old 09-20-2012, 06:32:33 PM
Dieselfan Dieselfan is offline
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Default Re: Kubota Z482

It seems the questions I get answered the more I have. the latest is trying to identify the mystery fluid coming from the drain below the injection pump. Its heavier than diesel fuel and motor oil, water thin, has no smell and is black as coal.

I attached some picture to show what I have. The 3 layers are visable. Fuel on top, 15w40 motor oil middle, and mystery on bottom. Instincts say something water based, perhaps water pump lube?
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Old 09-21-2012, 08:43:32 PM
cornbinder89 cornbinder89 is offline
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Default Re: Kubota Z482

That drain should be coolant. IIRC it is a T handle type valve that unscrews. If it is black, I wonder what was use in the cooling system.
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Old 09-22-2012, 06:44:22 PM
Dieselfan Dieselfan is offline
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Default Re: Kubota Z482

Well, flushed the block out today with water. Some sediment came out as well as some fine particles of corrision. Over all not to bad.

Still waiting for the new glow plugs to arrive so did some more tinkering in the meantime. Looks like I may have to lap the valves. I have a small leak on the number 2 exhaust valve.

ahh the joys of a swapmeet find. Looks like I have something to keep me busy for a while.
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