hit & miss engine woot.
 

So Easter I spent all afternoon working on this bad boy. It only runs for my grandfather, or for me & he's just not able to do it anymore. Hit & miss engines are ------- awesome too btw... Next time I'm up there, I'll have to get a vide of it!

900lb 90 year old engine: $1500.
Finding an OEM magneto in mint condition: $1000.
700lbs of concrete in 1954: $24.
1 gallon of kerosene: $3.24.
Having a single cylinder engine with >1000lb-ft of torque.
Priceless.
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I wish it could be dynoed. I'd put money on that thing having more torque idling in a 12-stroke firing pattern than any production honda i4 to date. :)

Re: hit & miss engine woot.
 

EF Swap time. :6

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nowdays thats about as useful as a stealthmode sticker covered in feces :1

Re: hit & miss engine woot.
 

Useless, but fun. I bet it kicks ass. Have any pictures of the piston and rod in that thing?

Re: hit & miss engine woot.
 

every year at the fair this guy has 5 or 6 of those fuckers, i love watching them run.

Re: hit & miss engine woot.
 

What does it do? how does it run and what is it used for?

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Re: hit & miss engine woot.
 

^ Added pics to the first post.
It can do anything nearly. As can be seen, one of the flywheels has a belt drive output.
From the late 40's the the early 60's it drove their well water pump to pull water from the well to the top of the well.
From the 40's through the present, it pulls a large 3' diameter circular saw used for cutting up lumber. It's on a big metal table that tiles the wood into the saw.
<Insert "just like any other internal combustion engine" joke here>
It runs by spark ignition, and compression igition at the same time. It'll burn anything you put in it. Mainly kerosene, diesel or gasoline. But it hasn't been run on anything but kerosene in more than 50 years. It makes ungodly power on gas, but it runs hotter than my grandfather likes, so he runs straight kerosene. Simply put... You can throw a tree as big as you want on the saw with that think no more than 1/2 of the carb open on kerosene, and the engine never even knows the tree is on the saw.

It's all mechanical. To start it you grab the flywheels, or put the crank on it (Which i rescently fixed). You rotate the engine by bouncing it off it's compression stroke. I have no qualms about saying it I can not start it by myself with great risk of injury (putting everything i had into a flywheel, or crank & easily getting caught in the flywheel.).

The bore is 5". The stroke is 1 3/4 to 2' long. (Ya, that's feet bitches) Comrpession ratio is unknown, but... You can't rotate it past a compression stroke without using the compression stroke itself to spring the engine past the compression stroke.
It's rated for a peak of 550rpm.

Those old things have so much rotating mass (flywheels/drive belt pullies - one flywheel on that weighs about 70lbs.). Many can run where they stop combusting every 4th cycle, and can go into 6-8-12 cycles plus. This one will continue to run every 4th firing cycle. That's ultra slow!


I love watching it run too. My grandfather cut the exhaust pipe down so that once you have it chuging along so that it jumps out of being a 4 cycle engine into my cycles, it blows circular smoke rings up about 30-40'. That's really neat to watch.
It's fun watching it rotating very slowly & sucking fuel in the carb 3-4 times, then finally BOOM! then it repeates.

Re: hit & miss engine woot.
 

Post up a vid of it running and not one of thoes short shitty ones, I wanna see it in action for about 5 minutes.