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Kohler 30R82 saved from the scrap yard


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  #1  
Old 03-14-2019, 04:40:09 PM
Photon939 Photon939 is offline
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Default Kohler 30R82 saved from the scrap yard

As a bit of an intro post I am normally more of a computer and electronics guy but when I saw this beefy Kohler generator get dropped at the local scrap yard I figured I would at least ask how much they wanted for it. $250 later I ended up renting a trailer from home depot to get her home.

The generator is in nearly perfect condition. Just some dust and some oil residue on the engine side of things. It was configured for LPG according to the original tag still hanging off the gas valve.

Since it was sitting outside in the snow for about a week before I could pick it up, my friend suggested taking out the spark plugs and cranking it to clear any water out of the exhaust manifold.

I was able to crank the engine using a large 88AH battery I use for my solar panel system and got the water purged out. Next step was to change the coolant as the inside of the radiator was wet but no coolant to be seen.

I ended up flushing about 3 buckets of water through the radiator and engine before it went from "brown with chunks" to clear. Then filled the system with standard premix engine coolant. (I wanted to get the engine hot with plain water but the temperature was going into the single digits that week and I didn't have a fuel setup for it yet)

Oil in the crankcase looked like light corn syrup - like it was changed and then never run.

In a bit I will append this post with pictures.
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Old 03-14-2019, 05:34:14 PM
Steve Dawkins Steve Dawkins is offline
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Default Re: Kohler 30R82 saved from the scrap yard

Welcome to the Stak, and thanks for saving that Kohler from being turned into scrap iron. Hopefully, you won't find much wrong with it, and will have it running smoothly and generating power soon. If you have questions or need assistance with troubleshooting and repair, there are many knowledgeable folks on this site that will be willing and able to help you.

Since you are new to this site, you may have to post a few more times before you can post photos. But, please post photos when you can. We love em!
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Old 03-14-2019, 07:18:58 PM
Photon939 Photon939 is offline
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Default Re: Kohler 30R82 saved from the scrap yard

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Originally Posted by Steve Dawkins View Post
Welcome to the Stak, and thanks for saving that Kohler from being turned into scrap iron. Hopefully, you won't find much wrong with it, and will have it running smoothly and generating power soon. If you have questions or need assistance with troubleshooting and repair, there are many knowledgeable folks on this site that will be willing and able to help you.

Since you are new to this site, you may have to post a few more times before you can post photos. But, please post photos when you can. We love em!
Thanks for the welcome. I used to have an account years ago (I think about 2008 or so) and got assistance with a little 1.5KW Kohler emergency generator I found in the basement of my church.
I either forgot the email I used to register that account or it got purged over the years from inactivity.
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Old 03-14-2019, 07:30:27 PM
Mike Cushway Mike Cushway is offline
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Default Re: Kohler 30R82 saved from the scrap yard

What a beauty!
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Old 03-14-2019, 08:33:33 PM
Zephyr7 Zephyr7 is offline
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Default Re: Kohler 30R82 saved from the scrap yard

That unit looks remarkably clean! Iím hoping youíll be able to get it running without too much trouble. Iím a little concerned about you saying you ďpumped water outĒ of the engine though. Hopefully the engine wasnít left open and filled with water?

Bill
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Old 03-14-2019, 09:27:20 PM
Photon939 Photon939 is offline
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Default Re: Kohler 30R82 saved from the scrap yard

I am not sure what the previous coolant was, it did not have any color to it besides brown. It didn't smell like typical glycol coolant.

I opened the water drain port on the side of the engine and drained what was left into a bucket, I didn't get a lot out and it was full of rust chunks.

I sprayed the garden hose in the radiator until the flow out of the engine block turned clear.

I have attached the wiring diagrams for my generator. They are dated 1965 and 1967.
The controller is a Kohler A-284369
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Old 03-15-2019, 02:56:16 AM
dkamp dkamp is offline
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Default Re: Kohler 30R82 saved from the scrap yard

Photon (Phil?)...

I dunno who put that thing in a scrapyard, but whoever the person was, was a TOTAL MORON...

and YOU... are a SAINT.

That machine has more guts, and more durability, than ANYTHING that could be found NEW these days... at ANY price. It's quiet, strong, and drop-dead reliable with nothing more than a set of plugs, points, condenser, oil and filter on hand.

I'll bet that if there's ANYTHING inside that engine with ANY showing of problem, it'd be a little corrosion or staining from it being dragged out and left for water to get in. Running NG or propane, it will be absolutely spotless inside.

I say... now that you've got the water out, and changed the oil, spray some penetrant in the cylinders, hook an appropriate fuel source to it, put a stack on the manifold, and get it fired up... let it get warm, and blow any debris out of the chambers, the ring grooves, etc... and get a good film of engine oil distributed over it's surfaces in the way it was intended.

I salute you for your rescue!!!
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Old 03-15-2019, 10:12:07 AM
Mike Cushway Mike Cushway is offline
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Default Re: Kohler 30R82 saved from the scrap yard

Well said dkamp. The reality of this unit is that it's design life is rated in decades not hours.
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Old 03-15-2019, 11:26:08 AM
Zephyr7 Zephyr7 is offline
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Default Re: Kohler 30R82 saved from the scrap yard

Quote:
Originally Posted by Photon939 View Post
I am not sure what the previous coolant was, it did not have any color to it besides brown. It didn't smell like typical glycol coolant.

I opened the water drain port on the side of the engine and drained what was left into a bucket, I didn't get a lot out and it was full of rust chunks.
Sounds like it might have just had water in it instead of real coolant, so no corrosion inhibitors. I’d get a bottle of radiator flush stuff and run that in it for a few hours to help clear out any gunk, then flush it with water a few times until it runs clear. After that, put in regular coolant.

Note that you need to be able to get it hot before that stuff will really work though. A good flush with just a garden hose to blow out the worst of the gunk is a good start. The radiator flush solution will actually dissolve what’s left.

I always like to do a flush and fill on the coolant whenever I get a new liquid-cooled genset of unknown service history. I think it’s just as important to clean the cooling system as it is to do the oil.

Bill
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Old 03-15-2019, 12:23:56 PM
Vanman Vanman is offline
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Default Re: Kohler 30R82 saved from the scrap yard

Yes, well said, dkamp. I wasn't going to be the first (this time) to rant about the crime that is scrapping good old stuff. Needs to be illegal. Like I always say, whatever good old stuff is left is all we will ever have.

Keith
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