Tractor STALLS...After "Carb Rebuild"?? (1975 International 574)

No scanners required this weekend...
Dust off the timing light and screwdrivers!
My neighbor the farmer said he installed the carburetor after a "professional rebuild" on his 1975 International Harvester 574 tractor, and now it STALLS OUT under any load!
He drove it to my shop using the choke...
Apparently the reason he had the carburetor rebuilt was that the engine kept FOULING the spark plugs...
Let's do a basic ignition timing check before diving into the fuel delivery system...
Can we get this vintage workhorse back to full health NO PARTS REQUIRED?
Spring is here and there's A LOT to get done on the farm!!
Actron CP7527 Inductive Timing Light:
www.amazon.com/dp/B000BSY9J4?...
Mitutoyo 500-196-30 Advanced Onsite Sensor (AOS) Absolute Scale Digital Caliper:
www.amazon.com/dp/B00IG46NL2?...
Hakko FX888D-23BY Digital Soldering Station:
www.amazon.com/dp/B00ANZRT4M?...
Enjoy!
Ivan

[@catranger01]

Never underestimate the value of good neighbors.

[@JohnDoesGarage]

I run my shop the way you run yours. I'll fix anything. Cars, trucks, lawnmowers, golf carts, motorcycles, anything with an engine and beyond. Great repair. I don't send anything out for repair for that very reason, nobody does quality work anymore.

[@jhonditch4269]

most people still working have no idea of the "old school stuff" that really was basic but worked well.

[@candicebeebe6688]

The Carb shop in California

[@djisydneyaustralia]

Are we related? I’ll fix anything also.

[@proven6270]

Shop ?

[@PabloGonzalez-ub6lu]

The pride in the smile of a guy that defeats a tractor that doubles his age.

[@tebbi67]

That was just beyond my imagination...that you can make the nozzles of a carburetor smaller using simple solder. I have never seen anything like that before...thank you for the enlightening video!.....very cool

[@aldanovaico181]

I love keeping a farmer happy. Free firewood, cookies and fertilizer for the garden. Can never say no to that. Great work.

[@danamanner9441]

Carburetor "common sense" is rare knowledge to have these days. Bravo Ivan!

[@bombardier3qtrlbpsi]

Exactly

[@bombardier3qtrlbpsi]

Would of checked the float level. Marvel Schebler carburetor

[@kevink8481]

Got one here on a case tractor and it's an old Carter YF.Side draft

[@kurtwelday8465]

It's temporary unless it works. I have a feeling your custom jet will not be replaced with an OEM any time soon. Nice fix.

[@letzrockitrite8469]

Man it's beautiful to see these workhorses still doing it's job .... thanks for the "fruits of your labor" there at the end Ivan !

[@jws3925]

Why not measure the jet size with drill bits of different size. Calipers seem like killing an ant with an elephant gun. I am 73 years old so I have been in quite a few carburetors but I have to say, I have never seen someone do what you just did. I have carefully drilled out jets with micro drill bits but filling one in and re-jetting with a hand held motorized drill!!! One of a kind, Ivan, one of a kind.

[@arcadeuk]

I'm guessing if Ivan had a set of micro-drill-bits, he wouldn't have been using paperclips and dental pics to make the different sized holes

[@baxrok2.]

@@arcadeuk He proved it doesn't really matter what you use.

[@throttlebottle5906]

doing that actually scratches the jets and will change the flow volume by causing turbulence. not that it's critical on a farm tractor, like on an aircraft or racing. you should really assume the stamped number is correct, if there's any doubts replace it with the correct size, but again, it's not an aircraft. lol

[@robertsmith2956]

@@arcadeuk I would think a back probe would be a better diameter than a paperclip. But what do I know. I installed my jets backwards on a 4 brrl carb. Ran great floored, at idle not so much......

[@BS-sz1dv]

Awesome. I love it that you didn't stop trying until it was perfect. Good enough is sometimes just not good enough.

[@a.j.5822]

Good morning, Every time i see Ivan's thumb I get flash backs of when I was using a pickle fork with a 4lb sledge and missed.

[@svhebert]

His wife should give him a Manicure 🤪

[@jimh598]

Always satisfying to see a manure spreader, aka politician. Mine is named Hillary.

[@oldbiker9739]

I am old school as well , back then we repaired our own generators ,alternator's, starters , water pumps , fuel pumps ,carburetor's ,distributers .

[@stealthg35infiniti94]

Youvare a true engineer that can analyze the problem and come to a scientific solution.

[@jefferyedwards5003]

This is actually how I found your channel, when you were working on another tractor.

[@jamesspash5561]

Progressively got worse. Check the points gap. Closed up points will act exactly like this. When ever suspecting carb issues, always check the ignition system first.

[@_RiseAgainst]

I used to fly in a carburated cessna that if you "floored" the throttle too quickly the motor would die. That led to some sphincter tightening mid-air cranks. Love the new black nail polish BTW Ivan

[@user-ix3zj2vk8h]

I am surprised there is still some smart people in the world

[@user-zt1pq7hq6y]

You keep making that old man's days. An old man and his old tractor working in harmony. You will go to heaven for being such a great Human being.

[@volvo09]

Yep, very happy customer!

[@PineHollowAutoDiagnostics]

He was very pleased to get his favorite tractor back running top notch... Put it to work right away! 🙂

[@jeffryblackmon4846]

Hmmm- where did you learn that bit of theology?

[@-ERIC-]

@@PineHollowAutoDiagnosticshello I’m sure I recently saw a video of yours regarding a faulty spark plug but I’m not sure, anyway I came across this, your probably aware already but if not I hope it helps. kzbin.info/www/bejne/rKGrZYJnaap1rqMsi=J1cIwTJb0PsGxyph

[@irgski]

Be good to your neighbors and they’ll be good to you!

[@roxanneabbott8424]

I. Say it all the time , you have a gift Ivan! This was a fun one!!

[@robertmedina6875]

I live in the city and boy Ivan your place, looks like heaven! I remember that you said, in a recent video that your wife was an optometrist, and you can fix anything, sir! The horses are beautiful we are animal lovers! I know you guys have worked hard for that place and you deserve that beautiful piece of heaven! God bless you, Ivan and your family!

[@MechDale]

I have never seen jet resized smaller before especially with a dental pick. Not sure the younger throwaway/generation will understand but with your videos maybe they have a chance. keep up the good work. I am always learning from your videos, thank you.

[@DarrellBraunsLongThumbNail]

We used to do this to get our scooters dialed in. There are also carb jet bit sets with a variety of small sizes up to 1mm

[@robertsmith2956]

Time to invest in a set of 3D printer nozzle drill bits. That will get you all those small sizes you need.

[@davidturner4639]

That was a carburetor rebuild? WOW! The original rebuilder should be embarrassed. I've rebuilt dozens of carbs and many were not that nasty before serving. A cheap set of micro drill bits with a hand reamer come in handy. An electric drill introduces too much wobble and makes the hole larger. Good detective work as always Ivan! Happy Easter!

[@flatdaddio]

Yup, the universal form of payment between neighbors is chocolate chip cookies!! I can't tell you how many times I got those as payment!! They are the best!! 🍪🍪🍪🥛😂

[@billdunlop8683]

Well done Ivan, At the end when you said "Big Pile of Horse Manure" I thought you were leading into your next repair of a Jeep.

[@GeminiSeven43]

You are truly amazing Ivan, not only do you get the most exotic cars to work on but the most off the way machines as well. I laughed when I remember the Holley Carb manuals saying "Never drill a jet as this causes uneven flow"....LOL I never would.have thought about solder fill and resize. Truly an artist with No Parts Required jobs. Thanks so much for the great video.

[@michelbrown1060]

The small tube with holes; ; Emulsifier tube. . .😉

[@privateer0561]

The stuff Harry is hauling at the end of the video is a metaphor for the quality of the repair at the carburetor rebuild shop. Could they have known about the improper jet size? Probably not. However, the fact that it took a month for a 15-minute job and that they installed the Venturi upside down, I'm certain they never would have.

[@rhkips]

Heck yeah!! Always awesome to see serviceable equipment given a new lease on life! There's not a lot of people left in the world that can work on carbureted engines, and definitely not a lot of people equally comfortable working on both modern and vintage equipment!

[@chrisevans7416]

You need a set of numbered drills

[@mmichaeldonavon]

Ivan I'm always intrigued by your ingenuity to "get a fix." When I'm confronted with a problem I always think, "What would Ivan do here?" Seriously. Loved this diag and fix. Amazing. What a use of your gray matter. Thanks. Sorry to see your thumb got "dinged." Hi to your wife.

[@lloydames8752]

Ouch those thumb smashes hurt. Remember my father drilling a hole in my fingernail with a pin vice drill. Felt so much better after pressure was gone.

[@arminprnjavorac2084]

I love the nature around your house. You're very lucky to have that 😊

[@porky7753]

Great job Ivan, it's priceless when neighbors have each others back.

[@markcollins457]

Hey Ivan not that your going to have a mad rush on re-taping jets but a company called Anderson & Forrester makes a thumb drill set that I used to drill orifices for conversions from natural to LP gas a drop of solder and a quick drill out and back in business. Great farmers fix😊

[@zx8401ztv]

Ivan that's a great repair :-D When you picked up your trusty soldering iron i thought ... yes yes he is going to fill it and drill it lol. Brilliant idea Ivan :-D Sorry that Ive missed your videos, Ive been really ill and it's took ages to feel ok . I hate being ill :-(

[@Sandmansa]

I love that old school tech. Everything is so simple, and it just works predictably. I remember doing something just like that at the racetrack with my buddy's racing motorcycle, well over 20 years ago. Thumper class. He would never bring a box of jets. Just a set of jet drills, a roll of soldier and a propane torch. If you don't have the right size jets during test and tune, just soldier up the hole and drill it back out to the size you think you need. It warms the heart seeing that trick still being used today. Nice work Ivan!

[@IamDerick]

Another nugget tucked away for future use, very resourceful. Well done.👍

[@tomwilson1433]

After a professional rebuild, I would have expected to see new gaskets installed.

[@robertsmith2956]

and no grime inside. I've rebuilt carbs that looked like that one before I worked on it.

[@jeremyah78]

That was awesome Ivan!! Getting that jet just right like that with some odds and sods of various diameters…. Priceless man!

[@mikeafa1]

Love the variation of repairs on this channel. Just figuring things out in a logical way is a lost art. We'll done! That owner loves his vintage farm equipment. I did the same thing to an early 70's rototiller. Runs mint!

[@stevenlatham4397]

I love how you not only diagnose and fix the most complicated electrical problems, but you also take on the most primitive mechanical issues. Fixing a farm tractor with a farmer fix. Never a dull video. Great job

[@neverstoplearning382]

What a beautiful place you live Ivan.

[@paulmuff9883]

Good job done old school way by using ones knowledge, excellent 👍

[@djwwautodiagnostics]

Wonderful repair. Lovely to see some knowledge of old school tech and to see that it still has it's place today. Fantastic 😀😀😀😀😀

[@mbazzy123]

That was great detective work I will bet the rebuilder had no clue as to how the venturi actually works Nice job Ivan !

[@kennethbode2017]

those years of messing with motorcycles paid off

[@scottnusser6232]

Good show. I also fix anything at my shop😂 Love the country scene ❤ Happy Easter

[@Badger1949]

A manure spreader! I remember riding on Grandpa's lap pulling one of those, 70 years ago!!

[@jimrankin2583]

Quickest “repair” is to put a tiny piece of wire through the orifice . Usually can bend it so it stays in place but can rattle around so it keeps clogging to a minimum. Can be done in the field even. That carb was high tec with the electric shutoff and the fixed orifice. Earlier models had an adjustable mixture screw for both idle and “load”. But no adjustment possible with the solenoid screwed in that hole.

[@larrystephens7437]

That wrap brought back nightmares of cleaning out stalls and loading the spreader with a pitchfork. Love the creativity of getting that carb back in action.

[@monkeywentbananas]

I thought I knew a lot about carburetors until I watched this video! Thanks for the knowledge Ivan!

[@1McMurdoSilver]

Oh the good ole manure spreader. Used to hate that machine on a windy day.

[@davidclemdis4796]

That old timer is tickled pink, he got his old tractor back and running nice and smooth just the way he likes it.

[@pellechi1]

Very cool video … love the way you deconstructed the problem and fabricated the solution …

[@thebaldmechanichardatheari1124]

Worked on lots of 1981 and 1982 IHC school buses. Always had repair any carb that came from a rebuilder, so when just rebuild them in house and better luck.

[@markwitte6458]

welldone ivan. most of the times with carbs it's logic. and errors when rebuild. your the star on your own show😆

[@devttyUSB0]

So nice to see that 574 working again!! Unstoppable!

[@alex241]

@Pine Hollow Auto Diagnostics DENTAL PICK!!! Ivan, you truly are the MacGyver of auto repair diagnosticians!!! Kudos to you for always going the extra mile with the goal of NO PARTS REQUIRED!!! Been repairing my own vehicles for 40 years but there is always something more to learn and I'm getting all I can handle from watching your channel!! Keep up the awesome work!

[@carbie5614]

I would have never thought to fo that. You are something else Ival. Good job

[@ccmoos]

The video of the tractor working is amazing. Not many tractors from this era are handy with a loader like this IH

[@HollomanUFOLanding]

HAHA I love that one. I feel sorry for your neighbor getting that crappy 'rebuild'. Shame he didn't bring it to you in the first place, but lucky for him that you were able to fix it for him using the tried and trusted paperclip method. The horses in the field are like "WFT? Ivan's put a soft top on his Suzuki in a Mad Max stylee"

[@iansinclair521]

Gotta love the old, simple machines...

[@patrick103b]

I was being distracted by my grandson and put the floats in upside down on my motorcycle 😂

[@linuspoindexter106]

For a tiny drill bit for a soft metal, you might be able to just cut a piece of wire and chuck that up in your drill. Cut the business end at an angle for the cutting surface.

[@gregpace4676]

Good stuff, you need a numbered drill bit set

[@alasdairmunro1953]

Nice one Ivan! 👍🏼

[@cullenmiller8170]

Great video and diagnosis. True to your colors showing people how to resize a carburetor jet. If you don’t want to invest in a set of drill bits for jets a torch tip cleaner does an okay job too.

[@murphy1772]

Good job. Heh, now there isn't any error codes anymore. No even fault lights. Our family owns David Brown 880 tractor at 60-talet here at Finland, very popular as small Massey Ferguson with petrol machine.

[@tpanther9567]

It appears to be an old Marvel Schrebler carb, Napa Auto Parts could get kits to rebuild those at one time.

[@Eric_the_Hiking]

Ace Venturi: Carburetor Detective

[@lloydweems6237]

One of the few KZbin mechanics that uses a timing light.

[@misterhipster9509]

Yes carburetor work AND operation by young ones, is a lost art.

[@dougkubash8673]

It sure liked the .055" on the main jet! Sounded great!

[@robertoruiz7069]

Hi IVAN ,that was a great repair and one issue that isn't taught in auto shop today.The issue of air -fuel ratio and the performance of engines.With the widespread use of fuel injection sizing fuel jets is no longer done.Although i believe Holley carbs may still have screw in jets with varying jet sizes in the jet plates? But i think the reason they went away from metering rods and jets was because with injectors being electronic you have a basic size jet AND the computer VARIES the time it's held OPEN to let fuel through.That makes more sense to me as you can in effect change the amount of fuel ON THE FLY.However to do that you need a computer AND a sensor to tell it if the mixture is to rich or lean.And that means downstream monitoring the exhaust.The little solenoid could almost be modified with a ARDUINO unit to act LIKE a fuel injector,but of coarse the EPA would find out,and take you to jail for thinking outside the BOX,haha!!!good vid ,ivan

[@bobwilliamson5574]

Moral of the story ? Always keep a toothpick in your toolbox . Great video.

[@richb419]

Hi Ivan, good catch, venturis are designed to speed the air past the booster. different sizes for different engines. no parts required just 5 man hours.😂 Rich

[@rafflesnh]

Too many people think common sense is cheap. You can't buy common sense, but when you find it, be prepared to look after them well! ;-)

[@calholli]

I like the solder trick.. I'll have to try that. I used to change jets so often in dirt bikes and quads that I have several little piles of jets and jet kits laying around now. :) ... You cut out the fun part of taking the carb off and on 100 times. lol

[@PineHollowAutoDiagnostics]

Just had to unscrew the fuel solenoid to get to the main jet... Actually very nice design! 😊

[@stagggerlee]

I had to stop and go pee after that fuel sample collection! Great video as always, Ivan!

[@ginder77]

That’s amazing! Great job Ivan!

[@billziegmond4943]

Great repair my friend. I saw the manure spreader and I swear I could smell my Ole Kentucky Home.

[@raymondhorvatin1050]

Ivan the master tractor mechanic thanks for sharing

[@robavis4906]

Im really liking your channel. Just found ur channel the other day. You are very impressive. Good job

[@angelamcmahon]

Tools needed!

[@gordonwilloughby8793]

When you said you were trying 1/16 inch, I was going to suggest a piece of 1/16 inch copper tubing. Then when you went smaller I was thinking solder a piece of copper wire the right size to fill it then use a fractional drill to drill the right size. If the solder wears away, that might be an option.

[@tomsawyer4776]

Automotive genius.....you qualify. Great job.

[@suttoncoldfield9318]

14:08 IVAN, you dropped it!!!!

[@alexandertemnykh9745]

Ювелирная работа! 👍

[@robertmedina6875]

You are sooo smart Ivan!! I love all your videos!

[@Saykes1994]

2:30 Hi, first timing, second valve adjustment, third fuel, pressure and volume and then carburetor.

[@rambleon2838]

The fact that his neighbor won't fix his own tractor is more disturbing than Ivan hiding the bonus footage of him trying to hammer paint his finger nails. Well done fix.

[@major__kong]

A friend bought a supplemental type certificate for a larger engine for his plane. He shows up at my hangar one day and needs help figuring out how to take a bunch of lead fishing weights and make them one mass so he can install it in the tail to balance the larger engine. I think about it for a minute, and I suddenly realize I have an old army mess kit laying around. We dumped all the lead weights in and I grabbed my MAPP gas torch and went to town. We had to wait a few minutes for 10lbs of lead to solidify, but it popped right out. Drill a couple of holes and it mounted flush to one of the rear bulkheads.

[@rogercray2484]

Fantastic inventive solution 👌..luv ya work Ivan 👍😎

[@mr.volkswagen7296]

Hi Ivan .Good old school mechanics that we are trained with in our young years. 😄

[@jeffryblackmon4846]

Nice job, Ivan. I suggest you need a numbered drill bit set.

[@DarrellBraunsLongThumbNail]

Good catch on that venturi, Ivan

[@haroldhawkins9370]

You do nice work Ivan, way to go.

[@douglasjones3799]

Great going, Ivan!

[@htownblue11]

Wow that main jet was massive for that engine. Ivan shows us that sometimes logically looking at what is the desired function of a part can help us ensure it is functioning correctly. This diag was different than most of his, but actually a pretty valuable lesson. Many would have replace the electric valve.