Next time you start it, run it under compression for a minute or two with the main engine governor fully closed (no fuel). It'll heat the main engine so that when you pull the governor to half-open, it'll start up immediately. Reduces fuel washing of the cylinder walls, and is generally easier on the main engine.
Thank you for saying this, I see so many of these shitheads just start putting things under a load just as soon as they get the pony motor started, let the cocksucker warm up a little, then crank the diesel with compression release on start, for a bit then crank it on run, for a bit to warm things up, so you don't have to use the damn ether, when you put the fuel to her!! Fucking impatient lazy cocksuckers!!
@@NakedDave100 Yes....always let the big engine turn over for a while before opening the fuel...it allows the pre combustion chambers to warm from compression...then they start straight away
I drove a lowboy for a dirt work contractor, he loved the old D8's. If they had electric starters when he bought them he switched them back to pony motors. Most didn't even have hydraulics, just the winch on back. Cats and pans was how they moved dirt.
Reminds me of an old D4 we had on the farm 50 years ago. Cable operated blade, with a 2 stroke start up engine, ‘pony’ motor as you refer to. Plenty of smoke from the startup engine. We turned over the main engine for about 5 minutes before we kicked it into life. Enough time for a couple of beers.
You really need to crank her on full compression for at least 3 mins with Throttle lever fully shut off , that way You warm the combustion chambers ASWELL as the exhaust from the Donkey going THRU the inlet Manifold of Diesel engine, this gives a quick start when You open the throttle... Great LOOKIN CAT though...
This video brings back memories when I was a director at the Coolspring Power Museum in BrookeVille Pennsylvania. The cofounder of the museum bought a Old D9 dozer that had a cable operated blade. Fortunately this machine came without a blade. I can not tell you all of the damage done by this machines with clowns driving it around the museum grounds and tearing things up. I would hide the pony motor cranking handle so they couldn’t start it. They would search everywhere looking but we were afraid to ask where is the handle? Eventually they would run it on the oil and chipped roads so as to not tear up the sod, can you believe it?
letsdig18 . You would be one of the few who realized what damage it did. It was a tough time trying to convince the volunteer who mowed the acreage to stay on with all the ruts they caused. We had to drag the fields to eliminate the damage. Someone left the winch in gear and broke the cable, why they messed with that I have no idea.
@@yt650 speaking of Brookville pa. You should visit my brothers you tube channel. Reynolds logging stumpjumper videos is videos are from all around that area. He lives in corsica /summerville
I had an old cat 12 motorgrader with a pony start. You can’t kill the old classics. They dont make them like they used to. Hey Chris just like that old bantam huh?
@@magictune7935 Got it. So the pony engine turns the main engine over directly? I guess it might be lighter than a couple of big 24v batteries and a starter motor. Never seen that before.
Hi, reply to your question,I once had a cat d4 7u from the early fifties ex military , I guess the protocol for starting the main engine was the same as this old 8 on here, You are right in assuming it was a little two cylinder petrol engine sometimes referred to as a donkey engine and sometimes referred to as a pony engine, which was either started by a seperate 12v battery with its own starter motor or via a pulley with rope which one pulled to start the engine the battery option was easier, some of the engines had both options fitted, i guess if the starter gave problems you then had the option of the pulley, once the donkey engine was started its exhaust fumes hot gasses were directed through the main engine air intake manifold thus heating the air being pulled in by the main engine to aid combustion when it was being started, an idea by Caterpillar before the later pre heater plugs came in along with the main engine having its own starter to fire the engine, a sort of major step forward if you like, The donkey engine and main engine cooling systems were also linked up so the main engine cooling system was also being heated whilst the donkey engine was running to also aid combustion to the main engine, a good idea if you think about it, Once the donkey engine had been running for a few minutes and starting to warm up, you then had two levers one a decompression lever which you flicked over first to open the valve train exhaust valves i think so you could then engage the starter dog with the other lever for the main engine to spin it over whilst it built up its oil pressure before starting, Another good idea, once the oil pressure was up you flicked the decompression lever back over and then proceeded to fire the main engine whilst keeping the starter dog all the time in with the other hand, If the main engine didnt start you had to keep trying until it did In and out with the decompression lever, once the main engine started you then turned off the donkey engine, You then had to give the main engine ten to fifteen minutes to warm through before applying any big loads to the engine, I hope that has explained a bit
The pony motor has a pinion gear that turns the ring gear on the diesel engine flywheel just like an electric starter motor. Except there is a clutch between the pinion and the starting engine
@@countmeout4153 -- My dear brother lives about 18 Km west of San Jose, he's been there for years and still doesn't speak Spanish, he doesn't understand Km or any metric measurements. Generalization: people in the U.S. don't do Celsius, they can't do the conversions. *And most Americans don't know the U.S. has been on the Metric system since the formal Treaty was signed in 1875* everyone just uses the really old British units for just about everything. Would you hand me an 11/16ths wrench? www.us-metric.org/metric-convention-of-1875/ en.wikipedia.org/wiki/Metre_Convention
@@davidnull5590 I can't find the 11/16 but here's the 17 mm if it will help you out. I was talking to an old truck driver(67) Here in Canada the other day ,he had no clue how many metric and standard wrenches as they call them here cross over sizes. He learned something that day.
There are two starters in this setup: the diesel engine that powers the dozer is started by a small gasoline engine. In this case the gasoline engine has an electric start (most were pull start), the gas engine turns the diesel engine over for a while and builds oil pressure in the diesel engine, when the operator is ready he starts the flow of diesel fuel and the dozer's diesel engine eventually starts. At 00:50 the operator has the gas engine start turning the diesel engine, diesel fuel started at 01:18.
I was talking about the starter for the pony engine lol. I love the diesels that used the pony engine to start. I also think the air start diesels are cool. My favorite diesels are the old detroit diesels.
Next time you start it, run it under compression for a minute or two with the main engine governor fully closed (no fuel). It'll heat the main engine so that when you pull the governor to half-open, it'll start up immediately. Reduces fuel washing of the cylinder walls, and is generally easier on the main engine.
Thank you for saying this, I see so many of these shitheads just start putting things under a load just as soon as they get the pony motor started, let the cocksucker warm up a little, then crank the diesel with compression release on start, for a bit then crank it on run, for a bit to warm things up, so you don't have to use the damn ether, when you put the fuel to her!! Fucking impatient lazy cocksuckers!!
@@NakedDave100 Yes....always let the big engine turn over for a while before opening the fuel...it allows the pre combustion chambers to warm from compression...then they start straight away
@@NakedDave100 Please tell us how you feel. dont hold back. LOL!
The freedom of the Tier 0 diesel
Ain't nothing like an old block C. Old CATs age like fine wine.
IT"S ALIVE!! What a beast! I was in the cheering section.....go baby go!! Thanks for the video.
Cheers for videoing and up loading. I like seeing old machinery.
Great cold start! Awesome thanks for sharing
I’ve never seen that done before!! Thanks for sharing
Love those old dozers, except when the battery is dead and you have to crank start the pony!
Damn kids don't even remember about changing the fan direction so you stay warm running them
Yea i saw that smoke coming through the rad
Not all of those fans are reversible. I have two old D7s and they’re both pusher only.
Look forward to seeing you running it in upcoming videos!
You just got to love a smoky motor.
I drove a lowboy for a dirt work contractor, he loved the old D8's. If they had electric starters when he bought them he switched them back to pony motors. Most didn't even have hydraulics, just the winch on back. Cats and pans was how they moved dirt.
No computers for that old beast.
Best cat engine sound ever 👌❤️💪💪
Reminds me of an old D4 we had on the farm 50 years ago. Cable operated blade, with a 2 stroke start up engine, ‘pony’ motor as you refer to. Plenty of smoke from the startup engine. We turned over the main engine for about 5 minutes before we kicked it into life. Enough time for a couple of beers.
chrispy_wa From the beginning to the end, no Cat pony motor was a 2 stroke.
Never been a 2 stroke Starting engine on any cat dozer aĺl 2 cylinder 4 stroke pony motors
Electric star for the Pony is cheating :) My dozer has pull cord. Thumbs up BTW..
Survival Russia They kick Start these in Scotland 🏴
I had a hand crank
I have to push start my dozer.
Jsalrulz Do You Park them facing downhill on a slope?
I love those old dozers
Well Delco Remy is update for such a reliable machine.
The old 69 D8 we had was the same. Had the provision for a hand crank too.
I first saw a dozer like this in the movie Killdozer. I love those old machines, just started and worked, no computers and bs.
Concrete and Construction that was a D9. That movie was hilarious
Nellson Stout your right, it was a D9. A classic to me. I could watch that movie 1,000 times and never get bored of it.
Yea no codes to put it into limp mode Just work no bs to hold up prodution
AHHH...the smell of diesel smoke in the morning.
You really need to crank her on full compression for at least 3 mins with Throttle lever fully shut off , that way You warm the combustion chambers ASWELL as the exhaust from the Donkey going THRU the inlet Manifold of Diesel engine, this gives a quick start when You open the throttle... Great LOOKIN CAT though...
You know it’s cold when the pony motor doesn’t want to start
Yo dawg we heard you like cold starts, So we put electric start on your starter.
😂😂 you win the internet for the month
great up close on pony moter
Pretty cool!
gotta love that old iron!
Takes me back
This video brings back memories when I was a director at the Coolspring Power Museum in BrookeVille Pennsylvania. The cofounder of the museum bought a Old D9 dozer that had a cable operated blade. Fortunately this machine came without a blade. I can not tell you all of the damage done by this machines with clowns driving it around the museum grounds and tearing things up. I would hide the pony motor cranking handle so they couldn’t start it. They would search everywhere looking but we were afraid to ask where is the handle? Eventually they would run it on the oil and chipped roads so as to not tear up the sod, can you believe it?
I bet that thing made a mess with those track cleats!
letsdig18 . You would be one of the few who realized what damage it did. It was a tough time trying to convince the volunteer who mowed the acreage to stay on with all the ruts they caused. We had to drag the fields to eliminate the damage. Someone left the winch in gear and broke the cable, why they messed with that I have no idea.
@@yt650 speaking of Brookville pa. You should visit my brothers you tube channel. Reynolds logging stumpjumper videos is videos are from all around that area. He lives in corsica /summerville
Sweet turbo
I had an old cat 12 motorgrader with a pony start. You can’t kill the old classics. They dont make them like they used to. Hey Chris just like that old bantam huh?
my x boss used to have an old dozer similar,had to hand crank the pony motor,similar to the way the old farmalls were started
Your ole buddy Charlie would probably buy that one.
34 aint no damn cold start hell fire - 34 is a cold start
lucky to have a battery start pony motor ..might have been a bit of work turning it over with the hand start
good old days
Nice
Guess this is easier on the battery’s and starter since you only need to start the little guy.
Did that many a time on a couple of old TD 20 Internationals
nice old iron
It's like push starting a '46 Chevrolet in 1961.
Old school!
Take that al gore !
🤣😂
Would love some info on hand crank 1941 d8 no spark on pony motor
Clean and set the points
So I got there there was a little motor being started first....what did that do? Power up the battery? Grateful if someone can explain please.
Instead of a 12 or 24 volt starter the pony engine is a gas powered starter
@@magictune7935 Got it. So the pony engine turns the main engine over directly? I guess it might be lighter than a couple of big 24v batteries and a starter motor. Never seen that before.
Gavin Critchley the older cats didn’t have batteries. They had hand cranks on the pony motor so no battery was required.
Gavin Critchley not so much lighter, as it was developed before big electric or air starters... only way to turn over those heavy larger diesels
Hi, reply to your question,I once had a cat d4 7u from the early fifties ex military , I guess the protocol for starting the main engine was the same as this old 8 on here, You are right in assuming it was a little two cylinder petrol engine sometimes referred to as a donkey engine and sometimes referred to as a pony engine, which was either started by a seperate 12v battery with its own starter motor or via a pulley with rope which one pulled to start the engine the battery option was easier, some of the engines had both options fitted, i guess if the starter gave problems you then had the option of the pulley, once the donkey engine was started its exhaust fumes hot gasses were directed through the main engine air intake manifold thus heating the air being pulled in by the main engine to aid combustion when it was being started, an idea by Caterpillar before the later pre heater plugs came in along with the main engine having its own starter to fire the engine, a sort of major step forward if you like, The donkey engine and main engine cooling systems were also linked up so the main engine cooling system was also being heated whilst the donkey engine was running to also aid combustion to the main engine, a good idea if you think about it, Once the donkey engine had been running for a few minutes and starting to warm up, you then had two levers one a decompression lever which you flicked over first to open the valve train exhaust valves i think so you could then engage the starter dog with the other lever for the main engine to spin it over whilst it built up its oil pressure before starting, Another good idea, once the oil pressure was up you flicked the decompression lever back over and then proceeded to fire the main engine whilst keeping the starter dog all the time in with the other hand, If the main engine didnt start you had to keep trying until it did In and out with the decompression lever, once the main engine started you then turned off the donkey engine, You then had to give the main engine ten to fifteen minutes to warm through before applying any big loads to the engine, I hope that has explained a bit
How does it start the diesel, via a clutch system in place of a starter?
Yes. The exhaust from the pony exits through the intake of the diesel to warm the air too.
The pony motor has a pinion gear that turns the ring gear on the diesel engine flywheel just like an electric starter motor. Except there is a clutch between the pinion and the starting engine
34° above zero, as a coldstart?
cold start just means the engine is cold, since when does it have to be really cold
*34°F ==> 1.1°Celsius* (for everyone outside of the United States)
@@countmeout4153 -- My dear brother lives about 18 Km west of San Jose, he's been there for years and still doesn't speak Spanish, he doesn't understand Km or any metric measurements. Generalization: people in the U.S. don't do Celsius, they can't do the conversions. *And most Americans don't know the U.S. has been on the Metric system since the formal Treaty was signed in 1875* everyone just uses the really old British units for just about everything.
Would you hand me an 11/16ths wrench?
www.us-metric.org/metric-convention-of-1875/
en.wikipedia.org/wiki/Metre_Convention
David Null i’ve actually got a socket set it has both US and metrics.
@@davidnull5590 I can't find the 11/16 but here's the 17 mm if it will help you out. I was talking to an old truck driver(67) Here in Canada the other day ,he had no clue how many metric and standard wrenches as they call them here cross over sizes. He learned something that day.
I wish you could have shown more detail. Oh well
Where’s jpaydirt when you need him
Why are their so many drag line comments on your videos?
running jokes
He plays in the mud to mych...!!
#DragQueensDrivingDragLines
Quality cheech right there
Is it retired? Or does it still move dirt?
Dr Draws lots of fiber for the old fella!!
This is what life is about. I am not looking forward to this electric everything future at all.
Cold start diesel!
Gg
Hi Chris that Bulldozer sounds like it has a Go-cart Engine but it was the generator that sounded like a go-cart 👍
Wow look at all the hippy tears floating away lol
Isn't it a donkey engine not a pony engine
How dare you
I was hoping to see it move
Thry dont make em like they used to
Понятно, откуда наши спиздили конструкцию пускача)))
Самый надёжный стартер, а главное 0 электроники
#DragLine2019
#DragQueensDrivingDragLines
He did not know how to start that dozer That was stupid
A drag line cold start would have been more impressive. #draglinesmatter
#DragQueensDerivingDragLines
Why would it have been more impressive, same principle, if it had a diesel engine??
That poor starter.
There are two starters in this setup: the diesel engine that powers the dozer is started by a small gasoline engine. In this case the gasoline engine has an electric start (most were pull start), the gas engine turns the diesel engine over for a while and builds oil pressure in the diesel engine, when the operator is ready he starts the flow of diesel fuel and the dozer's diesel engine eventually starts. At 00:50 the operator has the gas engine start turning the diesel engine, diesel fuel started at 01:18.
David Null he flips the compression release. He already had the fuel open
I was talking about the starter for the pony engine lol. I love the diesels that used the pony engine to start. I also think the air start diesels are cool. My favorite diesels are the old detroit diesels.
yeah, the pony needs help, some help.......
@@throttlebottle5906 it just needs a little help from the ether bunny
Better get your operators manual out and read it over good before fucking up a starting engine!!!!!!!!!!!!!!!!
First🙃
Yay I'm number 13
Big deal 18
Nice
video ended too soon would like to hear that big cat run longer