AUTOPSY of a Caterpillar Pony Motor. | What Went Wrong?
2024 ж. 30 Нау.
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I have a feeling those mysterious gear teeth are from a previous catastrophic failure that wasn't cleared out before being replaced, or were left to make a speedy recovery in the field then forgotten about, before being parked.
that seems plausible!
My thoughts as well.
exactly my thoughts too...
Mine as well
Exactly my thoughts.
Those teeth (my guess) are from a starter Bendix gear that was smashed from all that slop in the main bearings. Very interesting watching to dismantle something I'll probably never even see. Thank you Matt
Yeah it look's like at about 19:30 you can see a bunch of teeth missing.
That is what I’m thinking too. It’s more than likely that is what caused the main bearing to fail to.
I second or third the starter gear
Came here to make the same comment.
STARTER BENDIX
Hey Matt - I worked for a large Caterpillar company in Denver, CO in the early 70’s. (I am 81, now). I worked on a lot of D8 Cats. We changed out the pony motor as an assembly and never got the chance to tear one apart. Very interesting.
BEFORE Diesel Creek I had NO idea what a pony moter was, and never even operated any piece of the sorts of equipment Matt is doing.(I'm a computer guy) NOW I own a tractor, bought a farm, and are fixing all sorts of duhdah's for whatever i need to get by, inspired by Matt and others like him. GREAT content !!
🤘🏼💪🏼💪🏼💪🏼
Knew about pony motors for decades but never seen such a discription of them like this .. Cat pony motors are a different kettle of fish !!!
Keep digging brother!
a small gear like that, my guess is that it came from a broken starter that since have been replaced.
That makes a hell of a lot of sense. Can’t imagine anything being completely ground to paste without some fragments remaining, yet leaving the teeth mostly whole.
Those gear teeth look a lot like starter drive gear to me ⚙!
This makes the most sense. If the crankshaft bearing was worn already, the starter was engaging only on the tips of the teeth, putting a lot more stress on it. Then it was swapped to fix it probably.
Sounds right. There would be a shaft without a gear somewhere in there otherwise.
I will never, ever need to know any of what Matt tried to teach me today, but strange as that is I could not stop watching this. The flywheel slop was epic. These episodes are why you have 3/4 of a million subscribers.
Much appreciated!
Me too!
AGREED!!
There's a YT channel called Mr Hewes who fixes up tanks & other old military stuff. Had a T34 running rough & when they pulled the engine, the clutch end of the crank had around 4" of slop - crankcase & block all broken up but it had run!
@@GARDENER42just like this pony was running!
In all my years of rebuilding engines of all sizes, I've never came across one with that much wear that still ran. AMAZING! Thats why those old Cats just keep on going.
Now even a Honda engine (everyone seems to swear by) couldn't take part of a fraction of this.
What I love about this channel is how you always steam clean or pressure wash an item before you start to video. That removes the blackened grease/oil sludge from the working surface and allows much better video content.
I believe the teeth were from a failed starter bendix that never was retrieved when they had the initial starter problem Matt. The size and number is similar to the teeth count on the bendix.
I don't know, those Pakistanies would throw that whole thing up on a lathe, hit it with a welder some paint and bada bing good to go.
Same thought
Matt, at around the 10 minute mark you explain why you save old junk like this, but there's a neat side-effect of what you and those of use who care about old stuff do: there's a "gap" generation around old equipment where the old codgers who worked with it every day start to retire and pass on and the new kids in the field have new, high-tech fancy stuff and don't need things like pony motors &c., so off they go to collectors or the scrapper. With luck it's to a collector, and with greater luck still it's to a collector that will use it and instruct others in its use--like you're doing right now in this video. When these things pass out of every day use and into the "antique" world, there's a risk that they themselves as well as the understanding of their use is going to disappear forever. Think about steam engines, and how a whole generation of teachers were mostly lost before the nerds picked it back up again. All it takes is a generation of folks going "I don't know WTF that does" to lose that real-world, practical knowledge of the thing. Great example is live steam, which in the UK is SO MUCH more robust than here in North America. Why? The Brits took forever to switch from coal, we didn't. And that switch just so happened to coincide with folks starting to wake up and realize that it's worth saving the old stuff, even if it's not "useful" in a conventional sense anymore. Like a CAT pony motor. :) Thanks for giving a hoot about the old iron, Matt--preservation and conservation is a gift to future generations. There's always "a million of them" out there... until there isn't. Good, old machines deserve to be saved and ought to be put to work. They might be the only things that actually last in our age of emissions equipment and computer-controlled common-rail injection. Cheers, and I hope you and your pod have a happy Easter weekend. 🐇🐇🐇
I am 29 and i keep two stroke pony motor on my 60s Belarus (mtz-50) tractor. Learned to rebuild them and all. One day folks like me might be only ones knowing how to run them. Bolt on starters exist, but I will run pony just for sake of keeping old iron alive, even now when I installed turbocharger on the main engine, and water to air intercooler. Learning, modifying and still keeping old stuff on the tractor is really fun for me.
Regarding the grey/silver sludge, I didn't see that anyone suggested it is actually LEAD from leaded gasoline. We used to call it grey paint. I was an apprentice car mechanic in the 60s when leaded gas was the norm. The grey paint would get so thick in the oil pan it would plug up the oil pickup. When removing an oil pan with that in it, it felt as heavy as if half a crankshaft was there. With the age of that pony engine, it likely ran most of its life with leaded gas.
That’s what I was going to say, that it was lead from leaded gas. Torn down lots of old engines with my grandfather back in the day and every one of them had that sludge in it. Remember tearing down an old model T engine that had so much in it you could see where it was starting to touch the crankshaft. With that much sludge it probably only held about a quart of oil. We couldn’t get any oil to drain out before we took it apart. Most likely that’s why the guy said it would only run for about 10min before it would get hot and seize up and he’d have to let it cool down before it would start again. 😂
From an expert ‘ole cat skinner’ who has gone to the dozer home in the sky: after you start the Diesel engine, disengage the pony, but don’t kill it. Turn off the gas and let it run dry. That warms up the pony, drains the carb, and your pony cast iron warms evenly to fight dampness. I pulled down my D7-3t pony and found a shop that could weld up and grind the crankshaft back to spec. We had to bore the cylinders off center to get them round again. My 3T was dry clutch so the previous owner managed to beat on the bendix with the canvas-and-sheet metal links that break in the dry clutch. I found bendix parts from a 2U in a junk yard. Be thankful for your oil clutch and be assured it could be worse.
Fascinating teardown! The crankshaft bearings on these ponies are commonly ruined by a leaky carburetor valve: if the fuel shutoff isn't used and a tank of gas drains into the oil, the oil becomes useless. Just a short runtime with ruined oil will trash the crankshaft bearings.
My take away from watching this is pure amazement with the engineers who designed and manufactured that whole assembly pre computers. I can't imagine the cost to make all the tooling to cast all those different pieces in an economical way. Mind blowing to me.
Thats my takeaway. You'd love the Henry Ford Museum. The sheer scale of these giant complex machines is mind boggling that it was done before computers. The highland park electric generator built in early 1900's is just awe inspiring if you think of the engineering challenges they faced and overcame. The giant steam engines assembled when horse power was all that was likely available to move the giant pieces.
@@joshualester2735 What's amazing it to be hiking in the California desert, miles from nowhere, and to come across an old mine with ore processing. The size and weight of the engines, stamp mills and the like seem impossible to haul the several hundred miles from the nearest rail stop, but there they are as a witness for the workers of the past.
@@87minithat was always my favorite part of shows like gold rush. How they got that equipment to the middle of nowhere in a time before internal combustion engines.
Yep. Life was hard, and men were tough, determined, and did what it took. Respect
Milling machines were the tools back day now its cnc machines or water jet or plasma tables all worth a kl 100g
I agree with the mystery teeth coming from a previous starter catastrophic failure. I have never been in a position where my (and possibly my family's) next meal depended on me getting a piece of equipment operating so I could finish a job and get paid. The pressures of life and the mindset of someone who doesn't perform recommended oil changes and would also leave gear teeth inside a gear case is something I cannot relate to in any way. Matt has clearly established that neither the motor or the gear case received recommended maintenance and that the carnage occurred because of the wear on the engine main bearings which was due to oil that was filled with abrasive particles. Maintenance is not done for various reasons. I know/have known people that can always find money for beer and smokes but can never find money for oil changes. If every machine owner put maintenance high on the list of important things Matt wouldn't have a channel. Without so many mistreated machines we wouldn't have such entertaining videos illustrating the effects of that mistreatment.
I am an IT guy from Germany. So I could not be further removed from this topic, but yet still I love watching these videos. Keep up the good work of reviving old steel that others have left to die. Also very nice to see your channel frow over the years, almost at the 1 million mark now, great :D
Love how you can drop a pony on your ‘new’ bench with a forklift and it doesn’t even flinch 👍
That was the idea!
I was thinking the same thing!
The bench was "Built Diesel Creek Tough".
DieselBench
That's not a pony motor, that's an anti-seize maker
Wouldn't be hard to braze up that gear case. Worth saving. Doesn't have to be difficult. Prep the weld seem. It doesn't have to be huge. A 3/16 v is enough. Drill holes at each end of the crack. Build a nice big wood fire and get it all hot in some coals. Keep it in the coals while you heat up the joint and braze it up. Finnish by building up the fire a bit to bring it all up to an even heat. Cover it all with the coals and ashes when it dies down so it cools slow. Leave it till the next day. It sounds like a lot, but really isn't. Most of the effort is building a bonfire and watching it burn.
And you sir have obviously dealt with machinery needing spare parts made out of unobtainium.
I'd love to see THAT video. 👍
@@proberts34 Try cutting edge engineering on KZhead to see it done properly in a scientific and precise manner in Australia or any one of a number of indian\pakistani sites on truck axle\gearbox repairs using 100 year old British machinery (go to a couple and the algorithm will send you more) to watch it being done with sledge hammers.
Yes, I know it’s possible but like I said they aren’t THAT rare yet. I’ve got better ones that aren’t broke already on the shelf lol
Well any form of cast irorn repais is a royal pain in the ass that takes a lifetime of experience to succeed with, takes just the right levels of preheat or the part will just crack open like an egg.
I own a tree service company and am from the city so naturally without much mechanical knowledge I would just send my trucks and machines to my mechanic, after watching your videos for the past year I always try taking a crack at it myself now, saved myself so much money and have learned so so much from your channel, thanks for the awesome content Matt, love and respect from southern Ontario, Canada!
The engineering that went into that motor alone must have been huge. Glad Matt took it apart for us mortals to see.
Actually pretty simple. It’s 1/2 of a preexisting 4 cylinder design. The first series (most of them) were odd fire as you can imagine results when you have only the back half of the 4 cylinder. Then CAT designed a new counterweighted crank and a new camshaft that made it an even fire engine but then reverted back to the old odd fire design before they stopped making them altogether. That brings up the magneto ignition. Obviously there’s a difference between even fire and odd fire msgs, so when you’re looking for a msg to swap on something make sure you account for that difference. Same for mag distributer caps etc.
Wild guess s those teeth were from a part that was replaced? Something stripped the teeth off, maybe the starter? They replaced the starter but didn't pull the whole thing open to gett he bad parts out
Bingo! 👌👌👍👍
That's what I thought. Quick roadside maintenance. No proper lighting, Old one out, new one in back to work.
I was thinking the same thing!
I'm so glad you posted a video today, because the 10th. of this month I was on my death bed, but I barely pulled through and it seems that each day now is a Blessing, but I'm still very weak and very limited mobility from this awful Flu I caught from my Grandson that he got at the Daycare. I hope I get to see more of your videos .
Hope you’re feeling better!
@@DieselCreek Thank you
Praise God. God Bless in Jesus Christ Name Amen.
We hate to say or admit it but it is children that make adults sick they bring home flu ,covid dreaded new RSV thing my wife being almost 75 like me was infected with RSV very close to killing her that we traced back to a child she had contact with down the line.... much as we love kids they can unintentionally hurt us older folks.
Get well soon. My wife and I are currently dealing with a virus that the youngest granddaughter brought home from school. It's challenging when we both have COPD to complicate things.
The gearbox assembly is toast, but what about doing a full rebuild on the motor unit? What about a colab with the other awesome KZhead JimsAutomotiveMachineShop? Would be amazing to see that motor brought back to fresh!
Absolutely amazing! Thinking of the time when this dozer was built and the machinery they had to work with, it always amazes me with their final product. Today we have modern CNC equipment that can do amazing things but back then it was a lot of ingenuity, that can only be admired!! Keeping in mind this was only a small part of this dozer!!!
Turret lathes were the CNC of their day.😊
"new" forklift??? Did I miss that video? 🤔🤔🤔
Thinking the same thing
Likely a future auction video
Seems like Matt's videos aren't chronological and end up uploading a forklift video in few weeks 🤷
I'm sure on Instagram he had a video of 5 or 6 forklifts on a trailer at his shop
@@lewissilverman7697 Strange that he leaks it on Instagram first. He should keep his KZhead videos as chronological as practically possible. At least my thoughts about it.
That pony motor was rebuilt 5 months before I was born. My parternal Grandfather ran those Cats back then, but in the other side of the country. He was about my age then too.😊
After rebuilding starters and alternators for the last 40 years that appears to be the remnants of an opinion that came apart from a previously installed starter
20:16 Look at the flywheel teeth. That's where the "gravel" comes from. Thanks for sharing !
The gear teeth look like they may have come from an old starter Bendix that might have dynamited at some time. Most likely from the flywheel being as it is. Amazing that this engine still cranked over. Love the old iron, they are almost indestructible. No engineered obsolescence.
Nice morning, Coffee and Diesel Creek with Matt.
That gearbox case looks like an ideal candidate for you to practice cold stitching on. Check out the guys from Tinkering with Tanks and see them repair a cast iron block. You never know when you might come across a really rare engine that you can't just swap out casings on. Love the content Matt
You know the old engineer saying: "Everything was fine until it exploded." 😁😁🤘🤘
I had a cat12 grader with a 2 cyl boxer pony. Pony threw a rod, broke some pieces out of the bottom of one of the cylinders, so I left the bottom oil ring off on reassembly. CAT dealer didn't want to mess with it which they told me by offering a ridiculous amount of $$$ to even look at it. Also got into a contention between CAT and auto shop as to who broke the end housing getting it off the crank, but CAT made it good with another from their boneyard. New pistons, rings, rods and bearings and it ran like new. Thank goodness for their boneyard, I also needed a steering knuckle for that machine. Apparently it's common for the spindle to fatigue crack, because mine cracked through, and the first one they got me was also cracked in the same place. The first spindle failed a bright early new year's morning, then broke the spindle on my case 580B trying to get the CAT12 off the runway, all before noon. Which goes to show you don't do ANYTHING before eating your black-eyed peas New Year's morning!
Matt , the time and investment in your super heavy duty work bench sure has paid off! It handles the weight of that Pony motor like it was nothing at all.
A friend of mine, when he knows he is replacing parts that have cotter pins in them, he does not even bother with pulling the pins. He makes sure they allow his socket onto the nut and he spins them off with an impact or breaker bar. He doesn't care what kind of damage the pin may cause because, the part is being replaced. If he is not replacing the parts, then he will be careful and he uses a new pin every time. I tend to remove pins just to keep a running inventory of what came apart and what needs to go back together.
I’m thinking those teeth are remains of an old starter or gear that failed at some point and was replaced. Just shrapnel that was left behind. 🤷♂️ I sure do enjoy watching these videos and appreciate you bringing us along. Thanks Matt.
Have a beautiful Easter everyone!.
I have a difficult time imagining how the heck the design engineers come up with the designs to make these things work together.
Trial and error.
Mechanical engineers with good drafting skills. These were designed and made WAY before PCs or AutoCAD.
Love the baby T-Rex shadow on the work bench around 10min mark
who else does this each time a new video comes out I sit here scanning his work shop for new toys and etc .🙂
Hello Matt, One of my most watched channels (after yours) is 'Squatch253'. He is a Caterpillar nut. He has rebuilt many pony engines from scratch always with great care and finesse. I know that He could help you to either repair or replace all things Caterpillar. He has always amazed me when it comes working on any project that he endeavors. Give him a shout. Sad to see the results of a neglected engine. Great video, Thanks.
Squatch is the Cat D2 whisperer! Aaron and his Dad at LAOL are into D4 restore. Ironman3406 and Kyle Christ are also Cat dudes!
Thank you for putting the diesel creek sound track back on
As a retired truck mechanic 32 yrs. I have never seen a crank with that much play in it. Hard to believe that it was running that way. Great vid, love your content.
I agree. It was wild
i have to think due to the design the gear portion was doing some work it wasnt designed to holding up the flywheel/crank, so really the flywheel would of been much more centered when assembled but putting alot of wonky forces on that clutch pack and the bearings in the gearcase
This is my go-to channel alongside Marty-T from New Zealand, Ants Pants from Estonia and Kris Harbor Natural Building from GB. Aways makes my day when these guys are dropping new content.
loosely assemble it back in the case for storage, protects and takes up less space than all the bits spread out.
That’s basically what I did
Semi SuperVillans knock it out of the park with their music !! LOVE the opening music!!
Yet another great band I've found from watching other youtubers!
I really enjoyed the tear down of the "Pony Motor." It's really great seeing you use your newly built shop whilst you do this kind of work. Well done, Matt!
It's pretty awesome when you find metal that's the consistency and texture of CLAY under a gasket.. WOW 16:10
Good times. Lunchtime in the UK with Diesel Creek. Epic.
RIP Pony. Congratulations on 3/4 million subs Matt.
Thanks Matt, I enjoyed your exploration of the pony motor. Add that to your knowledge, you already are a master of your craft!
You need to have that workshop crane installed. Look forward for the video 🙂
It's pretty cool to see you do a video like this. When I first started watching your channel. You were tearing something along these lines. About a year or so. 😊
I can just imagine the engineering meeting..." Hey Harry, we need a pony motor that's the heaviest thing known to man."
Nice way to showcase all your new toys! I have been watching for years. Happy for your success. Thanks for the in depth view of the pony motor starter system.
Hell yeah Matt, keep this stuff going , keep all that's salvageable , these analogue pieces are important, all this digital controlled crap is expensive and complicated to fix. Analogue can be fixed by anyone with tools , brains and experience
Very cool little motor and the machining that goes into building those engines back then is just plain awesome!!
Really glad you took the time to post this video. I'm in the process of trying to save an old Cat D7 cable dozer with a pony motor from the scrap yard. It's a long shot since it's been sitting 20+ years. Getting the pony running is going to be a challenge.
If the engine turns it’ll run! Don’t let it scrapped!!
Thanks Matt!
Love the New Intro Matt 0:02 Freaking Awesome @Diesel Creek
I miss the Saturday videos, became a ritual for a while. BUT, YOU do what works for YOU! You're a busy man. I'm going to watch the videos no matter WHEN you post them!!!
ME TOO!
He's just fixing and enjoying his real-life Tonka toys! As once children...many of us relate! Go Matt Go!
the intro music keeps getting better and better! and im impressed that engine ran at all, let alone for as long as it did!
Old things are great, repair as long as possible and when no longer possible to repair, strip off every reusable part to keep other old things working.
That babbitt bearing was probably a poured lead job which would explain why the metal in the bottom of the pan is so fine.
Actually that one looks like aluminum. Babbett wouldn’t have cracked off like that when he tried to drive it out of the block. Just a note, there’s spacers on that oil pan which is actually the lower crankcase and bearing saddles. Without the spacers in the gasket line it’s possible to overtighten the bearing crush on that front bearing and lock the crank up. Maybe some of them don’t require them but some certainly did. CAT used aluminum for crankshaft bearings in the main engines too. Seems strange when we see mostly steel backed bearings with babbet overlay in old machines but they used them quite a while.
No matter what project your working on it's never boring to me always more Diesel Creek
Thanks Matt for the tear down on the pony engine 👍 Old F-4 Shoe🇺🇸
Drill both ends of crack with oh 5/16 drill bit. Then preheat case to 450 then weld with nickel rod then but case right back in oven still on 450 then over hours slowly bring temp down slow slow if to fast it will crack
Yeah, but why go to all that effort when he has several good ones already in storage.
While we missed the "new forklift" vid, we can agree this teardown was well worth the wait! Great work, Matt.
That video is coming lol
Best Shop Teacher for Heavy. Thanks for the lessons!
You always have extra parts when done! 🤣 Thanks for the content Matt.
I had to re -shoe a caterpillar pony once , so many legs by the time i finished I had to start again 😅🍻
When I read this, my "inner voice" that spoke it sounded exactly like Groucho Marx. 😂
At least it wasn't a millipede. Old joke. Footbsll game, big animals vs small animals. The small animals are getting blown out. Suddenly, in the 4th quarter, the centipede starts to run wild, playing offense and defense, making tackles, blocking passes, making huge runs. The small animals gather round, and the rabbit asks "Where were you the first three quarters of the game?" The centipede shrugs. "Tying my shoes."
Hey Matt. I’m quite sure if you match those pieces up to some of the existing intact gears you will find the origin. My guess would be the starter drive. What I’m trying to say is that the pieces have been laying in there from some previous failure that you wouldn’t have any way of knowing about. There’s no telling how many starters have been on that pup over the years.
That’s what Sam said as well. But there was a Woodruff key laying with them and starters don’t have that.
Keep up the good work. It's a pleasure to see you, and other sites like yours, keeping the old stuff running. So much stuff today has planned obsolescence built into the design. Not too many things that you own can be repaired with a cell phone. Sometimes you just need to get your hands dirty.
Great video love see how the old machines work. Glade to see your still interested in keeping them working good job
Great video as always love the sound track ❤👍🏻great watch on a Easter Sunday afternoon here in the uk 🇬🇧 keep them coming, Happy Easter Matt and everyone else 🙂👍🏻🇬🇧
DC: sees silver paste "oh, its probably ok" Every Mechanic on the Planet: nope, nope she's pretty well screwed.
🤣 True, yet the amount of "paste" indicates how much metal has worn away from various parts, not always just one part. 🤔
The first bit I saw wasn’t anything to write home about. The second batch of sludge was substantial lol
Hey, Matt, as always, it is fantastic watching your videos and seeing what new "projects" you are working on!
30 seconds in and i approve of this intro over the honking rigs... this is far better!
Matt, If you choose to weld that cast iron here's a tip. My Dad a fleet diesel mechanic who would be 102 ys now, would take an acetylene cast rod, strip a elecrtical 14 ga wire, wrap it in 1/4 inch wraps, drill both ends of crack, rose bud the cast then dip flux and weld one inch strips from each end till welded. This allows hot welded cast to be softer and more flexible. This is especially good for manifolds. Don't forget to bolt down a manifold so it doesn't warp. Hope this long winded story helps you some where along the way.
Borax...used for the flux was what they had us use at TAFE college
It wasn’t unusual years ago that a tractor would have a cracked block from freezing in the winter, they’d weld them back
Previous starter gear teeth could be the broken parts. Also the spring that you pulled out looks like what would be found on the end of a starter to retract the gear.
Another informative video Matt. You would make a fantastic instructor because you have a way of explaining how things work even to a mechanical novice like me. Keep up the good work.
i agree that you have the pieces of of a previously shattered bendix drive gear. I also thought I saw the snap ring that would retain the bendix drive on the shaft. My dad had a chevy when i was a teenager that liked to destroy it's starter in the same way.
Yup.... Matt's getting slick with his videos, has "new stuff", doesn't show us, until way later on....😂 It's ALL good, we know how you be with the auction..... awesome as always 👍💪
That video is coming don’t you worry haha
I hope you have at least some experience of "hand cranking" engines ! The use of the starting handle is probably the first introduction to the workings of the motor car, that those of us born in the fifties had ! I got my practice in, on my father's Rover 14, in the " here, you have a go !" basis. Later I found that 4 cylinder motor motors were easier. In my twenties I was still at it with decrepit small lorries on building sites,and dump trucks etc. If you are not used to hand starting motors you have missed out on learning how to wheeze and cough properly, such fun...
Oh I’ve hand cranked lots of engines just not these style ponys!
Great video. That case is probably fixable. You do so much great stuff with all this old equipment . Glad somebody takes the time to save it.
Thank you matt, another great view into the guts of a motor, none of that looks too bad, the bearings havn't run through to the case, metal paste I just wear and lack of oil changes. The spare teeth look to be starter motor sized. In the past with units like that, that I have kept for parts I loosely assemble the unit so it's all together with grease on the good bits and a list attached. Sometimes a stand so it's easy to move. I would keep the gearcase to and let someone practice fixing it. Bye!..
That gear case is repairable actually, if it is made of cast steel it will be easier to weld than if it is made of cast iron, but even cast iron is weldable if it is heavily pre heated to a couple of hundred degree's first and then covered and allowed to cool very slowly after welding. Years and years ago when I first started in the trade it was an accepted part of the job and we refurbished many a block / gearbox casing/ and rear axle this way, that block is also repairable in the same manner, weld up the webs on the crank and have them turned back to spec by a crank grinder and do the same for any out of spec rotating surfaces and the rebuilt engine will be as good as new........important since as you said they are getting rarer than hens teeth now........there will come a day there wont be anymore left at all and you will be glad you didnt bin it. once they are gone there isnt any way back.
Considering that today is Easter, at first I thought that this video was about the resurrection of the pony engine.
I love this version of the intro song! The old timey out of tune stuff grinds my gears.
You are absolutely right about those types of parts becoming more scarce. I worked at a Cat dealership and they had an entire used parts department that would search all over the country sometimes looking for a part. The pony motors are especially hard to find. Even good cores are rare.
When you hear the intro music you know you're in a good place!!
BELLEVUE HILL NSW AUSTRALIA HAPPY EASTER DC! 🐰🥚🍫
Its Always Interesting to see inside and how it works - anything mechanical - after which you know your machine and what is got !- its no longer a mystery
An Easter morning, the smell of ham in the oven and a tear down video from Matt.
It’s a amazing how cluttered the new massive shop is now! Soon it’ll be filled like his garage at the house! Time to build another shop Matt and get that one filled up. LOL LOL
There’s still room to drive a forklift around. It’s not cluttered at all.
YDCMV...your definition of clutter may vary...AKA....not everyone uses forklifts as clutter guages😂
I am thinking that those extra gear teeth came from an earlier repair. They fished out the broken gear and the easy to find chunks and put it back together. Leaving the small chunks for you to find later.
Do not throw away the case, it is repairable with brazing. I worked at a place that had a Plymouth switcher locomotive using a D8 Cat engine for the prime mover. They had to rebuild the pony engine, It was made in 1948 or 49 and mounted to the side of the main engine casting for support and oil sump. I usually preferred to start the pony with the hand crank instead of the starter because it was easy to fire with the magnito. Yes, the exhaust of the pony went through the air intake for the diesel to be able to warm the diesel to get it to start. We could start the diesel in any kind of cold weather that no other diesel would start. Start the pony and put the transmission in low, engage the diesel flywheel with the compression release pulled so there is no compression and let the diesel roll for 5 to 10 minutes using the pony. Stop turning the diesel and change to high gear, re-engage the diesel flywheel, and spin the diesel slowly moving the compression release to get the diesel to fire. Once the diesel started pulling away from the pony then disengage the pony from the diesel flywheel and shut it down. The diesel was running on its own. That pony motor was a 6-volt system I believe. There may have been some gear teeth left in the case from the last repair that finally got caught and did the damage if the repairs were done in the field and in a hurry.
I hear you on saving old parts. When I had my RV repair business, I saved old awning and appliance parts. Not everyone can afford new RVs and when old style awnings and appliances broke rather than having to buy a new awning or water heater, I kept them going with some new old parts! 😂
Yay Sunday video, thanks Matt. Happy Easter man!
Diesel Creek and breakfast, a perfect combination😁 Happy Easter Matt.
Same to you!