I've got one that was a Spudder drilling power source from 1929. It's a IH 30-10 with a big draw works integrated on it. I have the old wooden Spudder also Freer Spudder Service, TX
I know the WWI 4 cylinder HOLTs were 60-65 HP and a million ft/lbs of torque but that 6 cylinder at the end? What displacement, hp and torque would that monster be? 80-90HP??? I'm assuming still 450-550 RPM, so frightening torque with what, 3.5:1 compression ratio? Couldn't be much more than that as easy as the guys turned those big fours over. I've seen a 100HP steam Case tractor pull (no, WALK-AWAY WITH) a 20 mold-board plow that a Deere 1200 HP twin engine 8WD had TROUBLE with.
A steam traction engine is always going to beat a diesel tractor for torque, especially starting from a stationary position. The reason is fairly simple: Even though those Case traction engines usually had just the one piston doing all the work, the force on the piston (and therefore the torque it could make) was only limited by the maximum boiler pressure. Plus the force could be consistent - as long as the steam valve is open, you have maximum pressure applied to the piston, even if it's not moving or is moving very slowly. So the torque is not only high, but is also just as consistent. Diesels can produce equivalent torque, but not as consistent and they can't do so from rest - you need some form of clutch to transmit the power, and that's going to limit the maximum torque at the wheels. The only way a diesel can produce high and consistent torque from rest is indirectly: For example if the diesel engine is driving a generator and this is delivering power to an electric motor - because those can make torque while stationary. Not forever though - if you jam up an electric drive, you risk overheating and burning out the coils in the motor, or overloading the circuits providing power to it.
Do you like these Holt Engines ?
Very much
Oh yes
Yes very interesting early diesel track machines
Son parte de mi vida 🎉
@@Oscar-fq1rbthese are gas engines buddy
That was some really awesome footage! Thanks for posting.
I really enjoy the start up and sounds of it running. Thanks for sharing.
Wonderful video and yes we sure do like this stuff!
Holt machines are my favorite!
I live next to Holt Ca where this design of tractor was invented near Stockton.
That first one. The machine in the background has a nice rhythm.
Nothing hums like a Holt!
I could almost dance to that first one. The others too when I was younger.
Great video, well done.
Holt may have been the leading manufacturer of steam traction engines in CA but Case made more steamers than All Other makers combined!
It's nothing but torque with a 100 rpm working range. That has to be the flatest torque chart ever.
Sweet history lesson here.
Very big vs strong machine
I’m building a model Holt right now.
No wonder Caterpillars sound like Holt's, they are holts.
1:33 sounds so good
Rất tốt với những động cơ lâu năm đã làm nên lịch sữ..🌾👍🇻🇳
Damn people make cool stuff.
I've got one that was a Spudder drilling power source from 1929. It's a IH 30-10 with a big draw works integrated on it. I have the old wooden Spudder also
Freer Spudder Service, TX
Can I put one in my pickup
I'm a professional mechanic and like most things mechanical
Thank you for showing these engines and tractors made in my home town!
So cool, from nz
I don't remember seeing the tractor that you put in the picture. Did I miss it? That's the tractor I was most interested in.
They have the ballast on the wrong end of that crawler pulling.
The guy in the orange shirt looks like he evolved on that tractor
São requias do passado. Teria que colocar o ano de fabricação 👏🏻👏🏻👏🏻🇧🇷
En mi niñez conoci un caterpillar diesel de 6 cil cuyo pony motor era un motor Ford Modelo A Nunca mas pude ver otro
The Holt motor was a succès.... the starting method very very dangerous!!!!...
so where is the car in the pic?
I know the WWI 4 cylinder HOLTs were 60-65 HP and a million ft/lbs of torque but that 6 cylinder at the end? What displacement, hp and torque would that monster be? 80-90HP??? I'm assuming still 450-550 RPM, so frightening torque with what, 3.5:1 compression ratio? Couldn't be much more than that as easy as the guys turned those big fours over. I've seen a 100HP steam Case tractor pull (no, WALK-AWAY WITH) a 20 mold-board plow that a Deere 1200 HP twin engine 8WD had TROUBLE with.
A steam traction engine is always going to beat a diesel tractor for torque, especially starting from a stationary position. The reason is fairly simple: Even though those Case traction engines usually had just the one piston doing all the work, the force on the piston (and therefore the torque it could make) was only limited by the maximum boiler pressure. Plus the force could be consistent - as long as the steam valve is open, you have maximum pressure applied to the piston, even if it's not moving or is moving very slowly. So the torque is not only high, but is also just as consistent.
Diesels can produce equivalent torque, but not as consistent and they can't do so from rest - you need some form of clutch to transmit the power, and that's going to limit the maximum torque at the wheels. The only way a diesel can produce high and consistent torque from rest is indirectly: For example if the diesel engine is driving a generator and this is delivering power to an electric motor - because those can make torque while stationary. Not forever though - if you jam up an electric drive, you risk overheating and burning out the coils in the motor, or overloading the circuits providing power to it.
a picture of the American justice
* * * C00L* * *
Where are you from guys ? :)
Scotland
Casper, Wyoming, USA.
Denmark - retired mechanic
Nashville, Tennessee
Germany, Baden Württemberg