Added: 3 years ago
From: Bevoin1970
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  • Very interesting with the pony motor. Why didnt they use air start? Maybe because in cold weather it would have to crank over too long and without preheat, etc it would be too long?

  • @FJSchrank Where do you get the air from on the initial start up? The Pony engine gives off heat, which is then used to help pre heat the big diesel engine, no air start could do that for you.

  • @FJSchrank Good analogy.

  • Until a few months ago I'd never heard of pony motors. Was there a reason for using them instead of electric starters? Great video by the way

  • @pattino1fan1 Im guessing it was all about the technology at the time, bear in mind its easy to start a small Petrol engine, but from that you get heat, which is then channelled into the larger diesel engine providing warmth to aid in starting, and also to help in building up oil pressure too. eventually your in a position to crank over the big diesel and away you go.

    In todays world its all so simple, we just turn a key and off we go. :-)

  • @Bevoin1970 Yeah even the glow plugs are built right into the start cycle.

  • @pattino1fan1 I think the old deisel engines took alot of cranking and as in this video the pony motor preheats the big one so it can start in cold weather.WIth a battery start it may very well have took more cranking than a 1940 battery could supply.And it would have been nesseccary to utilize glow plugs in cold weather.So the need for lots of cranking and suppling power to glow plugs might have been more than a 1940,s battery could dole out.Maybe?

  • IIRC, pony is approx. 24HP. It has a 2 speed gearbox, cluitch, and pinion engage lever. Diesel also has a co0mpression control for none, 1/2 or full compression. Start pony, low gear, zero comp., engage pinion and clutch, roll diesel until oil pressure comes up, then bring in 1/2 comp,until pony picks up load, then full comp. All this is building cylinder heat, plus pony exhaust is preheating intake air. Now crack diesel throttle & wait for start, Pinion kicks out auitomatically, now kill pony.

  • @304raven Thanks for the in depth info, reckon I could steal it now I know how to start it... ha ha ( Joking people ) :-)

  • @Bevoin1970 If you haven't figured it out, I'm an "old fart". Cut my teeth on a 6cyl. Cat stationary generator, 1956. I've operated D7/scraper, D6 on rubber, D8/scraper & dozer, D7 automatic dozer, TD15 automatic dozer, TD9 front loader w/ Drott 4 way bucket, large Tournadozer(skid steer), Cat14 grader, Galion grader, various rubber tired front end loaders & backhoes, hoistintg cranes, clamshell, backhoe, dragline, etc. while in USNR Seabees..

  • @304raven "Hello" old fart, meet another old fart, "Me" :-) - its fair to say you like dozers then..? LOL

  • @Bevoin1970 It's fair to say I like ALL big equipment. Spent some years OTR driver, first assigned truck was a 318 Detroit/13 speed, also run 250 to 350 Cummins & 300 to 365 Cats. If it's got wheels or tracks, give me a little while and I'll make it do some work.

  • It used for clear trees makes way World War II Airfeilds in Mayalaisa islands, Pacfic any islands

  • @MrJohn1966elliott Thanks great story :-)

  • Great machine!!!

  • @mihanurgos yes she sure was.... Thank you :-)

  • so the donkey must be connected to the diesel via a CV belt or something? as a direct gear drive would cause the donkey to seriously lug

    great video, thanks for shareing

  • @Jthumper No idea on the technical sides of the connections. I know it was a crowd puller on the day.

    Thanks for watching and commenting. :-)

  • does it have a little motor to start up the main engine? is that how they made diesels back then?

  • @the124Lscania I dont suppose they had electric starts in those days, with enough power to crank over a large diesel engine such as this. However saying that, the heat generated by the petrol engine is used to warm up the diesel engine before she fires into life. You couldn't do that with an electric starter... Technology was very limited back in the 1940's

  • @Bevoin1970 wow what a beast

  • to bad its not owned by a American

  • Damn, didn't think the pony motor was even gonna start lol!

  • @thetruckdoctor I think the owner of this CAT thought the same, when he was cranking it over with a crowd of people stood around him watching his every move... :-))

  • I a'mmm the Great Mighty Poo...

  • Not very good for getaways :) sweet diesel sound..

  • TAKE THAT annoying fair ground music!!! :D

    Awesome machine too!

  • small, 2 cylinder engines where called pony motors that did the starting.. at the time cat or john deere had no electric starters strong enough to start big engines in colder climate.. the little engines where hateful little things to keep running right.. a lot of the blame was put on them as they didnt run long enough when they where used... actually carbs where junk on them..

  • these are the unsung heros of WWII

  • @dalekrueger ... unlike all those people machine gunned to death lying on the beaches: They get WAY too much credit.. Hooray for the unsung D8 heros of D-Day!! (yes, this is sarcasm)

  • @hwoods01 what i ment, when someone talks bout WWII , they always mention the B-17,P-51,P-38,B-29,and all the other great machines of WWII,but something had to clear the land, knock down the hills,fill in the low spots,and level the land, so they could take off and land,and build the roads,and the bridges,so the shermans,and the jeeps and trucks could where they needed to

  • Even in the 40's a cat still sounded like a CAT!!!

  • Outstanding USA technology and engineering. Machines like this are why we won the war.

  • @c931D9 that and the germans were exhausted from the previous three years, aka our troops were fresh. and the jap's bent over as soon as the a bombs were dropped

  • Imagine doing that on the Western front at about 20-below zero F!!!

  • @JGMagoo No thanks :-))

  • @JGMagoo That would not be my 1st choice on my things to do list

  • How many horse power dose the diesel motor have?

  • @RockinGuy1994 Sorry I have absolutely no idea.

  • @RockinGuy1994 Being from the 1940s between 132-148HP

  • @RockinGuy1994 Powered by a 115 horsepower six-cylinder naturally aspirated Caterpillar model D13000 diesel engine they weighed approximately 16.5 tons (depending on equipment) and had a six-speed manual transmission.

  • rap that pony motor up

  • My Dad drove one of those in 1951 in the Korean War

  • what does the little engine do to make the bigger one start, power a generator for battery juice or something?

  • @greenjeens It provides heat from its exhaust gasses, which in turn help warm up the large diesel engines oil, thus making it easier to turn over and hopefully fire up - it also builds up the oil pressure in the large diesel engine before firing up can commence, by checking gauges the operator can determine if all is ok prior to slipping the clutches which allow the diesel engine to begin turning over and eventually fire up into life, so the little donkey engine does quite a bit of work... :-)

  • @Bevoin1970 i basically is a gasoiline powered starter, it just cranks the big engine over, and shares the same cooling system,so it helps warm up the coolant in the big diesel,and the pony exhust is routed through the diesel intake maifold to help warm it up too.

  • That engine is perfect hey, the diesel is running better than factory new. Very well done

  • @VYXtreme Sounded very nice being stood next to it. Thanks :-)

  • imagine doing this with a german machine gun tearing your ass up!

  • Sounds great!

  • is it normal that it is hard starting? I know donkey's there because electric start wasn't brought up to it's full use back then, but why does it take several minutes before it finally cranks?

    thanks

  • @seasonedtoker It was just one of those things at the time. The owner had a small crowd of people stood around him, and I think he flooded the engine with petrol, that made the spark plug all wet, and so it didn't want to fire up.

    I dare say under normal conditions, it would fire up 1st time, usually the way when no one else is watching.

    Thanks for watching. :-))

  • @Bevoin1970 I was refering to the dozer engines itself. in the video the donkey engine is running for like 2 minutes before the diesel cranks.

  • @seasonedtoker Sorry my mistake, the donkey engine is providing warm exhaust gasses that are used to begin warming up the large diesel engine, making for easier starting, also oil pressure is slowly being built up in the large diesel engine at the same time, and until it reaches a specific pressure, firing up cannot begin. Hence it takes a little time for all these stages to be complete before the big fire up...

  • oxy/acc required

  • A superbly maintained and presented piece of England's mechanical heritage. Excellent camera skills - neither shake nor willy-nilly, confused use of the zoom. Well done and thank you. Greetings from NZ.

  • @peteacher52 Thanks, I only wish I could go back and remake this film. I now use a HD camera and know a little bit more than I did when I made this.

    Still glad I captured this beast rather than not at all.

    Thanks for watching :-))

    Hello NZ.

  • i could have bump started that damn thing before he got the pony started

  • I love old machines proper basic no fucken electrics and fuses, Just pure mechanics

  • When dozer blade was applied, often cable operated all you had to know was 2nd and Hi reverse. They were opposite on the 6 speed transmission and allowed the cat shifter to be used like a johnson bar. Had a hyster winch on the back. By the time late 1950s rolled around pony motor had electric start and remote controls

    Incidentally, here in the north woods, we call that a pony motor. Donkey is most often associated with Diesel or Steam multi drum cable winches.

    Ran one of these as a teenager.

  • @HJMC3345 Many thanks for such informative information - interesting!

  • @Bevoin1970 Interesting pictures. Always wondered what the extra holes in the pad were for. We always added hard metal welding to top of pad treads to extend life of pads.

  • excellent.. sounds very good.

  • @schererfer it was just unfortunate at that time that the music was playing in the background...

  • Yea, that's all there is too it! hahaha

  • That was the big issue with the Cats, the pony motor was a pain to start. Once you got it started the diesel had plenty of cranking power.

  • the music totally put me off.

  • What a nice machine,those donkey engines can be temprimental.Never seen a D8 that sounds like a fairground organ before it starts,is it a modification lol

    Thanks for posting,well done

  • @DOCTORDROTT I think he had a CD playing in his player... LOL

    The chap reckoned it was because he'd got an audience, and that normally it fired up quite quickly and without much fuss.

    Was a very nice machine though, shame he wasn't allowed to drive it - Health & Safety as per usual...

    Thanks for watching

    Paul :-)

  • i imagine with the trouble he is havin to start it, it would have been really fun in the cold europe winter.

  • @thatstheone87 Most likely once it was going it wasn't switched off again... :-)

  • @Bevoin1970 My grandpa said these baby's used to sit and idle for days without needing to be refilled with diesel. He said he remembers starting one in the middle of winter, and didn't shut it off for about a month

  • @theimaginator16 Thats a great story, quite funny and yet I can believe it too...

    Its not the kind of machine you want to keep switching on and off , especially during War time... Sounds much easier to just keep topping up the diesel tank and let the machine keep on running...

    Thanks for that. :-)

  • Thank You  Bevoin1970

  • Can any of the Caterpillar people explain what the blocks or filler pieces are put on the track for and the proper name for them would be great .

    Great video thanks for taking the time to document this .

  • @heartland96a I've seen modern day tracked vehicles i.e. tracked type earth movers / excavators that work on Public highways and they have blocks on the tracks, I assume to prevent the tracks digging into the road surface / Tarmac and churning it up like tracks would. thus preventing damage to the road surface.

    Maybe this works on similar lines...???

    Thats all I can offer to you for what its worth.

    Thanks :-)

  • i want one

    

  • @1badmoefoe Me too.... LOL :-))

  • What is with the music? I'd rather heard the sound of the machinery. geeze.

  • @SpeedyNeutrino43 In over 155,322 views, your the first person to say that. This was filmed at a Vintage Steam Rally, with a variety of Steam powered traction engines, stationary engines and a "Fairground Organ" playing in the background.

    This is what you can hear playing. Its not some music track that I have added later on. Unfortunately I had to take this opportunity to film this big CAT as it happened. I had no control over the background noise. I wished I had, but there you go.

    Thanks :-)

  • haha andf if you buy a dish than you will wish... you had your cabbbbbleee baccckkkk

  • @braaaaaap2234 Huh?

  • @Bevoin1970 the song on this vid is on a comercial lol

  • @braaaaaap2234 Oh! thanks :-)

  • Did it ever have a blade on it?

  • @SuperJohndeere4020 Im sorry, I have no idea, it may well have done. I was told that one of its jobs would have been pulling out trapped military vehicles on the beach at Normandy.

    The chap commented, "If this baby ever got stuck then you were in serious trouble"

    It never did...!!!

  • ill try

  • Brilliant!

  • @herbgarratt Thank you :-) Greetings from England

  • i guess im pretty lucky to get to run one of these

  • @Lmancates You certainly are, you may well be the future keeper of such a machine. Wish I had the chance to have a go on one...

    Enjoy it :-)) Don't forget to film the cold start though if you get chance.

  • @Bevoin1970 Ill try to taling my grandpa in to it.

  • Just looking at your most poplar download. Nothing like a old machine getting the rev.Now like a say to many tubes support this video with something similar.

    This old beast looked like something which would drive out of Thunderbird 2 pod with the Mole on top.

  • @leokimvideo I wish I could in many respects, this was a fluke really, a one off.

    I came across this Caterpillar quite by chance, literally one day at a vintage steam rally. He was having a tough time regarding Health & Safety issues, show organisers wouldn't let him drive this into the arena. I was lucky in that he offered to start her up for me, hence this film is the result. Never ever saw him again after this.

    Your right about Thunderbird 2 Pod... ha ha....

  • @Bevoin1970

    I see so many tubers with what I call one off hit videos. My first advice is as above back it up if you can, my second is annotate from this to a video you want to promote.

    It is a very effective way of getting other videos noticed. Videos tend ot go to sleep on the tube network if no one watches them. I feel it is strung up to load popular content faster well before sleepers.

  • @leokimvideo Thanks for all the advice and tips etc... I'll have to get my thinking cap on and see what I can come up with.

    I believe your right though in what you say about sleepers...

  • Yea I might it is in storage now but later i will.

  • @Lmancates Should be good !! :-)

  • my grandpa has one of these. I love to run it. A little hard to get started somtimes.

  • @Lmancates Maybe you should get some video of it if possible..??

  • What an amazing pice of equipment, nice to see some one took the time to restore this for future generations.

  • Yes I totally agree with you...

    Thanks for watching. :-)

  • well preserved piece of machinery man, congratulations

  • must be fun trying to crank it over by hand.

  • do you know any specs on the donkey engine?

  • Im sorry but no I don't, all I can tell you is its Petrol.

    Wish I could help you some more... sorry :-)

  • Wow. So glad I stumbled on this video, I have never seen that before, EPIC!

  • Thank You !! Im happy you enjoyed it.

    Thanks for watching. :-)

  • Nice big beastie!

    It's good that you've included information in the description so that people who don't know much may learn some more. (I know a little, but i'm always eager to learn a little more.)

    8-)

    I wish I was around when things like this were commonplace!

  • Thanks for watching, Im happy you enjoyed this video. :-)

  • When it was really cold out, and especially after the engine had some ware on it, the farmer used to start the pony motor and let it spin the engine with the fuel lever in the off position while he went and had his morning coffee. By then the engine would be warm enough to to run.

  • Fajny kurwa sprzęt :D

    In English: yyy... good mashine, in excellent condition ;) congratulations and best greetings from Poland Man ;)

  • Thank You. Greetings from England. :-))

  • awesome! nice video!

  • Thank You. :-)

  • nice...i wonder how they did it up here in vermont when it was 30 below...lol..

  • With big warm coats and gloves I imagine... ha ha. Thanks for watching.

  • Oh man, you guys across the pond get all the good WW2 stuff!! I would kill to have one of those. Or the veteran i really want, a Sherman Tank. Anyway, That sure is a beauty, iv never actually seen a CAT being started with a Pony Motor, thanks for sharing.

  • Thats ok glad you enjoyed it. Wished I had the opportunity to re make this video in HD and on a much nicer day. Maybe one day If I ever see it again at a show... Thanks for watching and good luck in getting a Sherman.... :-)

  • sure would have been better without the music. Couldnt hear what was being said or the engine sounds

  • I know sorry !! it was a Fairground Organ playing in the background, plus a very windy day, not at all ideal conditions for making such a movie. If I had my chance again then I would make a much better job of it second time around. I have a HD camera these days, plus a little more experience. I did what I did at that time. Maybe next time this machine will appear at another show, who knows ? Thanks for watching. :-))

  • russian T-130?

  • It means the engine is cold bellend

  • Ha Ha... like it :-)

  • If you see this coming in wartime you only have uh a few weeks to get out of the way lol

  • That made me laugh, thanks.

  • "thats all there is to it" lol

    great vid and great lookin piece of iron

  • Ive always wanted a old Bulldozer dont know why just to add to the list of toys I have owned Ive had Police cars  a fire engine a 72 Bombardiar Sidewalk plow just about every type of off road atv dirt bike and motorcycle even a old water Buffalo anyone rember those?? Bobcats ect but never a dozer but that would really piss the neighbors off!! So someday

  • Me too buddy, I would so love to have a dozer, if only I had the money and the space to keep one..... I can always dream eh?

    ha ha...... Thanks for watching.

  • I work for Caterpillar Inc. here in central Illinois and worked in the crawler factory in the 80's. After watching this video I am amazed on how far crawler technology has progressed. Love old iron and seeing them start and operate. It often makes me try to imagine how it really was ! Wow, 1941 army model and a D-day vet to boot. Amazing !!!!!!!

  • I get the impression that once these babies were running, you left them running... ha ha. Must admit I felt quite humbled myself as I stood next too this veteran. Thanks for telling your story. :-)

  • There aren't many machines like this...much less a military version that saw historic action. Amazing.

  • Gave me Goosebumps and I found myself thinking,"If only she could talk"

  • I like the video...I like old CATs.

  • Thanks, I too liked this old girl, and to think she saw some action on Normandy beaches.... Long live the Cat !

  • Cycle the glowplugs twice!!

  • Im pretty sure this diesel doesn't have a glow plug system like your thinking... It uses heat from the donkey, Pony engine to help it start up. Please feel free to correct me if Im wrong.

  • I was completely just kidding! Haha. Just saying what we do when its below zero on Powerstrokes.

  • I stand corrected... ha ha

  • How about 3 times, haha.

  • How much Horsepower does it have.

  • Sorry I have no idea...

  • Nice video +++

  • Thank you. :-)

  • How big is the engine in that?

  • Don't know myself, sorry

  • Current D8s are just under 900 cubic inches. This one will be close to that.

    We used to have a very old D4. Same starting setup, just not quite as big...

  • i think it has the d342 engine 5.75 bore ans 8 stroke it has around 20 liters displacement

  • This is GREAT!!

  • Thank you, glad you enjoyed it. Take a look at my some of my newer video's I have uploaded some more Caterpillar stuff and International Crawlers, hopefully something for all tastes...

    Thanks for watching.

  • Great video, but that thing starts hard. Dad has a 1953 D-8 2U1976. Until this year it has started much easier than that. Even in the cold. Choke her till she starts, push it in some and it will run. Warm her up a bit then open the throttle up and let her crank on teh big one for awhile. Our has the crank up through the hood, saves climbing on the machine to adjst the choke or run things, you are already up there. Also a better set up with the dozer blade on it.

  • Good ol' detroit steel. If only we made equipment like that still as reliable and tough. Gotta love the starting sound that puppy makes...thanks for uploading this neat video.

    And it's a pony motor in US, donkey in UK. We also have called it a "gas mule" or "mule engine".

  • Thanks for watching, and glad you enjoyed it.

  • Detroit, are you kidding, that thing is from Peoria.

  • Detroit Steel = any engine made in America from the 40s to the late 70s. Technically, only a percentage of "Detroit steel" machines were actually made in detroit, and NONE of them were 100% detroit, most done through sub-assemblies.

    It sounds just like the gnerator we had at the airport. Had a V-8 engine, but the pistons were about a foot across. Huge engine, used to power aircraft electrical systems. Ran four 600v power lines, six-inches across. You want diesel roar on startup....:0)

  • I haven't seen that many of these started, but each "donky" engine was a bitch to start. Yours looks perfect, and restored, so why are the donkeys so hard to fire up? I know you say it didn't like the filming ...but? I guess that is why Honda did so well, their stuff always starts fast.

  • Just one of those things at the time I think, usual story when you have a crowd watching your every move, things just go wrong... My own crawler tractor, although on a small scale, starts great from cold but can be a real Pig when the engine is hot or even warm. You have to tweak the throttle just right or else... Thanks for watching.

  • Idk....the donkey engine we used to use was easy to use...just had a lawnmower-type motor. Most after the 30s were phased out when series-type DC starters were common. They're not used much anymore, although we had a few for starting the big engines like some of the pushbacks.

  • actually cats of all sizes had donkey engines until the 60s my dads first D6B had a donkey, we had 2 D8Hs on the farm for many years 1 was donkey start built '64 the other built 66 started off life with a donkey but was converted to direct start- the donkeysthem selves were electric start only in the 50s

    for those that dont know cat eninges up until the late 80s were "indirect injection - these engines take alot of starting & smoke alot when cold- dont be fooled tho they are very good motors!

  • boring

  • GOOD RUNNING TRACTOR

  • We have a bulldozer that lived through vietnam with bullet holes in the tank and the sterring stick. its a gm motor that is a 100 hp and thank goodness for a easy starting engine. thanks for showing the video

  • Thanks for watching and glad you liked it, its nice to see and hear about these old machines and their history. They all have a story to tell.

  • 4 minutes 10 seconds. "That's all there is to it."

  • V8. V10, or V12?

  • is the starter engine a 2 stroke or 4??

  • 4 Stroke, It didn't like being filmed I think !

  • The US Military also used various International TD- model crawlers.

    International Harvester's US built diesels used "Gas Start" (petrol start) diesel engines.

    These engines used a de-compressor which lowered the compression.

    The engine was started with an electric starter motor and had a magneto supplying spark and had a seperate petrol tank.

    After 3 minutes of warming up the engine was switched from petrol to full diesel operation with full compression and no spark.

  • Uh, how long do you have to wind it.