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1963 Kohler L600 Engine from 6.5M21 Electric Plant


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  #11  
Old 11-07-2018, 01:45:33 AM
Vanman Vanman is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

YAY! There is some good news! They did NOT mess with the crank when fitting up that pulley. The inner bore of the taper lock bushing has been machined to match the taper of the crank nose. Just to be sure I offered up the armature from the other set. Awesome.

They had assembled the bushing and pulley incorrectly though. They threaded the bolts through the holes that are supposed to be for removal, but instead they lined them up with the unthreaded holes in the bushing on the other side such that they weren't actually doing anything. And couldn't be used for removal. I had to use a puller. And of course they had to use one size larger lock washers. Just so it would look crappy. The large bolt in the center is what was holding the whole thing on and together. With it's own incorrect sized washers. Whatever. I'm just glad they left the crank alone.

Now just to hope the bottom end looks good.
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  #12  
Old 11-07-2018, 11:00:56 AM
Zephyr7 Zephyr7 is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

Innards on the electrical end don’t look too bad. Maybe you’ll luck out some on the engine too

Bill
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  #13  
Old 11-07-2018, 12:21:47 PM
Vanman Vanman is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

Oh, I should have clarified- that armature is from my other set. I just slipped it on there to see that the crank taper hadn't been altered. This one is just an engine with a big pulley. I bought it to use / combine parts with the other one. That project is here:

https://www.smokstak.com/forum/showthread.php?t=178752
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  #14  
Old 11-07-2018, 01:30:52 PM
Zephyr7 Zephyr7 is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

Ahh, that makes sense then. Im just in generator-think mode this morning

Are you planning to run this engine or just keep it as a parts unit?

Bill
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  #15  
Old 11-07-2018, 02:23:00 PM
Vanman Vanman is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

My plan is to combine all of the best parts from both for the generator set. My hope is to assemble the remaining parts into a running engine, and put that big pulley back on it.
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  #16  
Old 11-07-2018, 05:17:21 PM
Zephyr7 Zephyr7 is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

Quote:
Originally Posted by Vanman View Post
My plan is to combine all of the best parts from both for the generator set. My hope is to assemble the remaining parts into a running engine, and put that big pulley back on it.
The old two makes one special

Its kinda cool that the pulley had a machined taper. Maybe someone in that shop had some skills with the metal lathe.

Bill
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  #17  
Old 11-08-2018, 01:57:38 AM
Vanman Vanman is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

It's hard to say when, where or who put the pulley on there. It looks like it's been there for a really long time. For some reason that's the one part they didn't slather with paint lol.

A little more progress tonight. Pulled the cap of the mag, and it's nice and clean in there... But the coil secondary reads open circuit. Well that's a bummer.

But I also pulled the valve cover, and was pleasantly surprised. Only very little inconsequential rust there. Got six of the valves moving freely. Two of them move, but only with persuasion. But nothing is rusted solid, so it's all good. All tappets move freely.

Pulled the oil drain plug, and a very little bit of brown water came out, then an even smaller amount of goopy water / oil stuff, then lots of just plain old black oil. Not bad at all! And much, MUCH better than what was in my other one when I got it home. The reason that one needs two bearings.
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Old 11-11-2018, 01:56:14 AM
Vanman Vanman is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

Got some more disassembly and assessment done today.

Pulled the radiator, shroud, fan, water pump hand crank etc and found that, while it is bone dry inside now, it must have sat for a long time with plain water in it. The lower radiator hose and inlet to the block are chocked full of rust.

The area behind the water pump shows where it had been rusting for a long time while the water level evidently leaked down very slowly. There are "fins" of rust at each level. On the cylinder in there as well as on the pump impeller.

Preliminarily, the bores look better in this block than the other one, but damn, that's a lot of rust in that water jacket! How much iron is left?
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  #19  
Old 11-11-2018, 11:16:15 AM
Zephyr7 Zephyr7 is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

Looks like more scale than part in some of those pics

Is the scale loose enough to flush out? Id bet this system was open to the atmosphere with some coolant still in it. In my expierience with glycol cooling systems at work, the corrosion inhibitors seem to have corrosion enhancing properties when they get exposed to the air.

Bill
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Old 11-11-2018, 01:47:36 PM
Vanman Vanman is offline
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Default Re: 1963 Kohler L600 Engine from 6.5M21 Electric Plant

I haven't had a chance to start poking at it yet, though they look pretty solid. Not sure how I would clean out deep inside.

Got the engine proper removed from the oil base. Visually the bottom end looks pretty good, no rust or anything amiss. Quite a bit of end play, just by feel. I was hoping this one had good bearings. Time will tell. Have not yet been able to get the front pulley nut off yet, so I won't be able to remove the crank yet.
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