He said no valve movement either. Now I’m not sure exactly how these kohlers are put together, but I’m pretty sure if the con-rod was the only thing wrong the valves would still move
biggasmowers Veteran Member
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If I recal correctly you can't really tell if the piston and valves are moving with a screwdriver on these because the spark plug hole is directly above the combustion chamber, unless you got in on a weird angle or what have you. I thought about stuck valves too because it could easily happen if the engine sat outside for a long time. But since the crank can be spun so easily and have momentum, there's definitely something else very wrong. Even if a valve was stuck open there would be a bit of resistance due to the piston moving up and down in the cylinder.
"This'll either wake you up or put you to sleep forever!"- Red Green "Whatever you do you should do right, even if it's something wrong." - Hank Hill
Yeah I thought so too, engines don't turn that freely normally
Yeah, unforunately it might be kinda screwed. Probably be easiest to just swap the carb and stuff on one of the other engines after checking the internals and stuff.
"This'll either wake you up or put you to sleep forever!"- Red Green "Whatever you do you should do right, even if it's something wrong." - Hank Hill
Okay so here's why I think the con rod is snapped.
It also catches sometimes. Okay, so build plans are: Rear plow, probably will start with a sleeve hitch because I have one, lol, may upgrade to a 3 point Front bucket 2 2,000 LBS winches, front and back Roll bar Diesel swap (?) Gonna try to keep the vari drive, we'll see how much it slips Pulley swap, 4" rear, 6" front Ags, front and rear Diff lock turbo charger maybe.... Should be really cool! Ideas are welcome!
Last edited by Double W Cross Ranch on March 11th 2018, 4:03 pm; edited 1 time in total
Crazy_Carl Veteran Member
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It'd hard for me to tell from that video exactly what is going on with that motor. I like your build plan. I would take 5 minutes and pull the head off this motor to see what's going on with the piston and valves. What do you have to loose?
Double W Cross Ranch Veteran Member
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Nope, way yonder too cheap! JK, the head is held on with studs. They were all seized, I couldn't fit my ratcheting boxed end wrench on it, and I had like half a centimeter to turn the wrench. Not ideal, haha.
Make sure when you remove and re-install the head you do it with the proper pattern. Don't wanna risk warping it, haha. Sucks about the con rod but it's no surprise I guess since you kinda figured that was the issue. Hopefully you can get 'er running again!
"This'll either wake you up or put you to sleep forever!"- Red Green "Whatever you do you should do right, even if it's something wrong." - Hank Hill
I actually just watched your video there, does this engine have an electric clutch? Or some sort of mechanical engage ones? I have a pto clutch from I think a wheel horse, it's two pieces; one is keyed to the crankshaft, one slides on the crank to engage the with the other one (it has a pullley on it). Or at least that's how I think it works. been a while since I looked at it.
Also I'd like to note that a used con rod is cheaper than a diesel
Yeah that’s a busted rod for sure. Try to find a Carter brand aftermarket carb. They’re dirt cheap too and I’ve heard good things about them.
Alright!
AllisKidD21 wrote:
Make sure when you remove and re-install the head you do it with the proper pattern. Don't wanna risk warping it, haha. Sucks about the con rod but it's no surprise I guess since you kinda figured that was the issue. Hopefully you can get 'er running again!
Haha, yeah I will!
RichieRichOverdrive wrote:
And make sure to torque them to the proper torque when you put it together, because you are putting this back together.
Oh now that's mighty demanding, hahaha!!!
biggasmowers wrote:
Liken said, your connecting rod is toast lol.
Yeah I'm going to swap it out of one of the others.
RichieRichOverdrive wrote:
I actually just watched your video there, does this engine have an electric clutch? Or some sort of mechanical engage ones? I have a pto clutch from I think a wheel horse, it's two pieces; one is keyed to the crankshaft, one slides on the crank to engage the with the other one (it has a pullley on it). Or at least that's how I think it works. been a while since I looked at it.
Also I'd like to note that a used con rod is cheaper than a diesel
Actually it's manual, but I've never seen anything like it. Doesn't work, though. Yeah it is. But I'm currently swapping one out of one of the others.
AllisKidD21 wrote:
Or better yet, free out of one of the other two engines.
Yeah better than nothing, at least I could sell the Kohler then.
biggasmowers Veteran Member
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If ypur still going for a diesel, look for old generators , as they can have air cooled diesel 10 hp motors and the engines can be fine but the generator is worn out. Maybe put an ad on craigslist.
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Just remember though that a generator engine will have a tapered PTO journal, so a regular pulley won't work. Doesn't mean it's impossible, I'm just saying. Haha.
"This'll either wake you up or put you to sleep forever!"- Red Green "Whatever you do you should do right, even if it's something wrong." - Hank Hill