Kohler K231S Question

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racecar builder

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what's a good color to paint it?
that's after parts are all cleaned to bare metal.
it's black now and i want something different.

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racecar builder

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irish woodsman
i'm going to get engine paint.
is it a good idea to use the engine paint primer too?

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irishwoodsman

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irish woodsman
i'm going to get engine paint.
is it a good idea to use the engine paint primer too?

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i did and it still looking good at 4 yrs now, just make sure engine is room temp when you paint 70 degree it seems to adhere better:biggrin:
 

racecar builder

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irish woodsman
what kind of kohler do you have?
have you had it all apart?

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irishwoodsman

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14 hp 321 its in a ford lgt lawn tractor never had this one apart but i have had others:biggrin:
 

racecar builder

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irish woodsman
am i seeing my engine right?
the pan is loose.head,s off.
i take off the con rod cap and push piston & rod out top.
take off bearing support and pull crank out through side of engine.
then everything else i work on by reaching up in there?
i mean i believe it, i'm just having a hard time adjusting to it.
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kohler1.jpg kohler2.jpg
 

irishwoodsman

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and if this engine has been sitting for a long period of time soak it in diesel fuel and tranny fluid mixture it will keep you from breaking bolts off, kohler and tecumsh engines are simular in make up:biggrin:
 

Tony Wells

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I have an old Kohler cast iron 16hp off an old Wheel Horse mower, and it is red. Pretty dull now, but was almost fire engine red. Not sure what I will do with it. I keep hoping to find a genset with a back engine.
 

racecar builder

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irish woodsman & tony
i want to take the head in and get it hot tanked.
i'm getting that old feeling.
i called machine shop and they said they have parts WASHER.
they didn't say they DIDN'T have a hot tank.
do machine shops still have hot tanks where you guys are?

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Tony Wells

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Environmental issues have forced many places to adopt other means to degrease parts for processing. Some use a vapor method where a solvent is boiled and condensed on the dirty part, then allowed to run back into the reservoir, be filtered and re-used. Some simply use high heat to burn off the oil and grease, along with the paint, then media blast. There aren't many that still run a hot vat, filled with caustic soda.

If you wanted to, since it is a small part, you could do it yourself, with caution. Get some NaOH (Sodium Hydroxide, or Lye) commonly used as drain opener, and a stainless container, such as a large mixing bowl. Using an outdoor flame, like a Coleman camp stove, bring it to around 200 f and ease your part down into it. Beware though, if your part is aluminum. It will dissolve.
 

racecar builder

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tony
so brace myself for 'no hot tank'?
the knock with bead blasting is it leaves the grit.
out here i've heard of guys using a
50 gal drum and pool acid.
i don't think i'll push the panic button yet.:)

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Tony Wells

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Yes, but don't sell short the methods they use to prep heads and blocks. If they agree to run it for you, you may be surprised.

Don't use pool acid (Muriatic - Hydrochloric). It's difficult to neutralize, and very hard of the lungs. Basic caustic soda, as I mentioned above is friendlier to work with, and can be aggressive. It is what used to be in the vats in those old machine shops. Either one will corrode aluminum and any zinc or zinc alloy materials. Be careful.
 

Tony Wells

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Well, it's not difficult to set up a vat. I have a small one now (50 gallons or so). In fact, it's hot and has parts in it. I use it primarily for degreasing in prep for Parkerizing and Manganese Phosphating part for the oilfield.
 

racecar builder

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tony
that's off my scope doing anything like that.
i'll give a 'machine shop report' when i go out there.

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racecar builder

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HMer's
i'm going to keep it simple and just take head
to machine shop.
at least i'll be getting some kind of start on it!

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racecar builder

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rusty
i'm just fooling around cleaning and painting the head.
i want to test start it.
put head back on with old gasket.
clean carb a little. rig up something to hold coil.
see how it runs as is.
bore, heads of valves and inside of engine look real good.
plug and head were looking sooty black though.
think that was just carb misadjusted.

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flatbelter

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and then their is your wifes dishwasher:biggrin:

I like the dish waser, it works pretty good on grime, remember to run it through empty with detergent after the parts run.
Scrub off the big chunks before you run the part through otherwise it might come back to haunt you.

The more I think about it the more I want a full kitchen in the garage. :biggrin:
 

racecar builder

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flatbelter
get a used dishwasher and put it in the shop.
it takes a hot and cold water line and
then 120v or 220v.
the guy at auto machine shop says
they have 'parts washer', has rack that rotates.
i'm still digging into my kohler, figuring out how it's made.
did get kohler manual from jack's small engines.
that was a good move.

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irishwoodsman

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dont just use any coil use one off of early 70s chevy it is internaly reduced to 6volts so you dont burn points and condenser up:biggrin:
 

racecar builder

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irish
this one came with mopar type resistor.
points look good.
i've also been thrashing around with Ford ignition system
so that has been an 'ignition refresher course' for me.
what happened to your vacation?

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irishwoodsman

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it went good, i left them with their lights brighter lol if ya need help on the ford wiring let me know, neg cable to frame pos cab to side of sylnoid other side of sylnoid to starter, run a hotwire from battery fused to ignition switch then a hotwire fron switch with key on to coil then you need a hotwire from the switch in the starter position to your ignition side of sylnoid small terminal:biggrin: mac
 

racecar builder

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irish
what's the 'resistance wire' like.
i heard that's ford's version of ballast resitor
to drop 12 volts for coil 'run'.
i got my 292 & cruisomatic after it was pulled
from '64 pickup truck.
it's going in t bucket build.

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irishwoodsman

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i'm not for sure on the resistance wire thats why i use the chevy coil the resistance is built into the coil:thinking: mac
 

racecar builder

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mac
i'm in the process of figuring out the ford 'resistance wire'.
i'll probably put the kohler carb in carb dip.
i have to look and see if complete gasket set
includes carb gaskets, i don't think so.
i forgot to say, i got gasket set from jacks small engines too.

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