International Tractor Runs ROUGH... (Part 1: Diag & Teardown)

My neighbor's 1975 International Harvester farm workhorse doesn't have all its horses...
Out of 4 cylinders, 2 are very low on COMPRESSION.
What could cause two neighboring cylinders to lose compression?
Upon teardown, it becomes clear that my initial diagnosis was not accurate...
Some more parts may be required!
IVAN'S PICO WAVEFORMS:
drive.google.c...
PHAD PRESSURE TRANSDUCER:
www.pinehollowd...
Enjoy!
Ivan

[@brucherrin8947]

This man will tackle anything........😁this tractor is older than IVAN

[@lewislrameyramey9136]

Machinist here. As the valve seat and the valve sealing face wear together, the valve moves towards the spring end removing the valve lash and making clearances tight. Most people expect to find excessive lash on a worn engine, but it's usually the opposite. I think it needs a good old fashioned valve job. It'll be good for another 10 years.

[@Hernandez530]

So the top of the valve stem and the rocker arm dont wear? Or its not significant enough wear to cause expensive valve lash?

[@throttlebottle5906]

@@Hernandez530 if those oil lubricated contact surfaces start to wear, you have major issues. meaning you forgot to check oil or never changed it and it's been acid water for ages.

[@pontiacmaniac2]

You can tell he really cares for his tractor......

[@Sandmansa]

I was also expecting to find a bad head gasket or a cracked head or block. But when the gasket was revealed, and it wasn't any of those. I'm thinking, uh oh! Do we maybe have bad valves? Sure enough, at least one bad valve. And zero lash on another? Nice find Ivan! But what caused the zero lash on the cylinder 2 valve? That may require farther inspection. The owner of this beast was spot on when he said, he wants it to run right. So, he's taking it to a pro.

[@knowone6214]

Ivan working on a Corn Binder....this is the start of a great weekend....LOL ....that a good way to blow a disc or two lifting that head

[@jerryking2418]

Very interesting diagnostic. Looking forward to part 2.

[@GreyRockOne]

Nice work Ivan! All 100% old-school mechanical, no electronics! thanks!

[@jws3925]

That number you referenced as the model of the tractor is the model of the loader. looks like it could be 574.

[@marshalllarson8970]

The tractor is an International 574 and the data plate is riveted to the transmission just above the left foot rest. I have a 1974 model. The designation is always on the sheet metal of any tractor, not on whatever is hung on the tractor.

[@sixtyfiveford]

Always refreshing to work on non computerized engines.

[@truracer20]

Always perform the complete procedure. Air up all cylinders, individually of course, then check and note the source(s) of leak (intake, exhaust, crankcase) and approximate volume of leak. It can save the amount of future head scratching. A stethoscope helps tremendously, it allows you to hear the leak. Large leaks sound different than small leaks and being able to tell them apart helps in identifying the most likely cause of the problem on a very worn engine that will have leaks at all 3 locations.

[@roxanneabbott8424]

Here we go...cant wait for repair Ivan!!!

[@ItllBurnOff]

I love it, we have a ton of thoes around here in central Maine. Great as always.

[@TheOnespeedbiker]

I love the engine is so approachable you can re attach the head and start the engine just it to check if a valve lash is the problem. Reminds me of my old 62 Ford Falcon, where it took about 1 1/2 hours to R&R the head gasket. The Car Wizard replaced a head gasket on a Mazda CX 9 Skyactiv engine and it took 16 hours.

[@stevecorey3399]

Kind of goes to show you just how critical valve lash is, interestingly, last fall I was working on my friends 1950 international super cub burnt valve exhaust on number four cylinder! Love your contact from a 68 year old mechanic

[@theblackhand6485]

It's the ECU ! 🙈 Grinding all 8 valves, placing new valve seals and skimming the head will ensure all work is done well and the head will be fresh for decennia to come.

[@WECB640]

Appears to me that this is caused by an overall lack of maintenance. Multiple failure points. I suspect there are more "issues" besides the engine. Ivan, you are the BEST!

[@tecnaman9097]

It's 8pm in Melbourne Australia. Perfect timing!

[@keltecshooter]

Looks like the valve on 2 has receded into the seat , hence the lash getting smaller

[@johngreenwood6611]

I agree with you the value gone into the seat making a tight tappet not rocket science

[@keltecshooter]

I had a 4 cyl triumph motor with the opposite problem, cam lobes all worn away!!!

[@throttlebottle5906]

leaving the intake/exhaust manifold bolted on sure added a ton of weight to the already heavy head removal. which you quickly figured out at 7:20 in video. 🤣 you really need a gantry crane and chain lift to work on those easily. at least it's a smallish 4 cylinder. 🤪

[@JohnnieBravo1]

Holy Crap, Ivan! Now I WANT a tractor. I've no use for one, but having one would be just cool as a moose!

[@subzjc]

I can't wait til you get to build a shop and have a lift in it. Keep up the great work Ivan!

[@ehsnils]

I'm not surprised that it needed a valve job, but I'm surprised it's not a diesel when it's from the 70's. One thing to consider also is that it's a cast iron head and that means that the valve seats are usually milled directly into the cast iron. If you run lead free then they wear faster.

[@timewa851]

way cheaper to build with no diesel injection pump.

[@dustcommander100]

Good going! Surprising, but so believable that adjacent cylinders had different issues. Story of my life! I think those tractors had troublesome Lucas electrical components, too.

[@magid5441]

Whenever see you... Ivan you make my day.. Happy

[@RussellBooth1977]

I'd say that the valve lash being too tight has caused that valve to burn out because 29 years ago when I was doing a small automotive course my teacher was telling us how the valves will get burned if the valve lash is too tight. The valves get held open which causes the valves to overheat & burn out,it also causes a loss of compression !

[@PineHollowAutoDiagnostics]

The lash on cyl 1 exhaust valve was actually fine 🤔

[@robc3056]

Like it... hitech technician vs old skool... superb..

[@robertmedina6875]

Ivan , my friend you never fail to impress me! Totally awesome video for sure!😊

[@BobWhite777]

2050 is the model of the loader. Tractor might be a 574.

[@clarke6436]

Great change of pace.

[@pinecone01]

Huh, I'm surprised it's a gasser and not a diesel. Still, gotta love the old stuff. Dead-nuts simple and pretty easy to fix!

[@GregThompson-u6g]

your amazing most people would have put another vavle in you have a amazing understanding of how most things work

[@JoseSilveira-newhandleforYT]

Purely mechanical, for a change :-) A bit of a surprise, with two independent problems giving the same fault. Not sure of the constraints, but once the head gasket was replaced recently and problems returned with the gasket looking good, I would review / service all valves, before reassembly, to avoid a comeback in another cylinder. Those front head bolts a bit loose in the problem area, may indicate previous work was a rush job (farm equipment is always under time constraints, as things tend to fail just when they are needed).

[@billziegmond4943]

What the heck! Is this tractor repair week? Volts tractor was dying. Called me up and I went over to take a look. He thought it was fuel starvation. I found it was flooding. Tore the carb apart and found a bad O ring on the high speed fuel jet. Rebuilt carb and now runs like a champ. Stay well my friend.

[@akdenyer]

Ok Ivan I have done quite a few engines including manufacture. First this probably did not have the head tightened after 20 hrs. This can cause oil burning and oil in the coolant. Second this engine would have been designed for leaded fuel and will suffer from pocketing. The head will need to have stellite valve seat inserts fitted, at least exhaust. Most engine machine shops will do this. Or he can use an additive. All the old Land Rover engines we do have this problem.

[@pantherplatform]

I've been working on restoring two Belarus 825 tractors from the mid 90s. Had to replace the clutch in one of them a couple weeks ago. It's more of a wait for it to break situation since the owner uses it frequently but at least the 4 cylinder diesel engine runs great!

[@aleskyfinis1025]

I like these videos man keep bringing the different stuff

[@jimhaines8370]

Those old style squishy composite head gaskets need retorquing after running really common on older industrial engines

[@AP9311]

Wow, tractor work! Nice job Ivan! It's something alot different job that you're used to. I guess you're used to work on oddball jobs lol

[@baxrok2.]

30 year old head studs. Thanks Ivan!

[@raycurbee6106]

cool , I am working on a few old tractors now , some have been sitting for yrs , I did do a tune-up on a John Deere 4020 and got it running, the others are different size Farm - alls,or internationals , no clue how to actually drive them YET ,

[@carl_h]

You could actually use a feeler gauge on those valves. I hope the neighbor does a rebuild during the winter.

[@rambleon2838]

When you put the finger over #2 @3:40 that cover below the rotor on the distributor moved upward. That would make the rings suspect, wouldn't it? Great contend, nevertheless. I love Case and International tractors, Scouts, Travelalls, Travelettes ect.

[@glasser2819]

nothing can stop a good man from helping around 👍 I was surprised to see an old fashion distributor with points...

[@bradfaught1695]

Working on a farmall cub last week. The generator wasn't charging so I took the belt off and put some power to it from the battery, it spun so we made the call on the regulator. Still wasn't showing charging on the gauge. Took the gen off and went and had it tested. Tested good. Put it back together still the gauge shows a draw. Finally I pulled the post off the battery with it running. It's charging since it stays running. the gauge must be skewed.

[@PineHollowAutoDiagnostics]

Just verify with an amp clamp and voltmeter 👍

[@aarongarber5977]

When my cubs 6v battery died, I converted to an alternator and never looked back. Hitachi 14231 alternator is like $60 and the 12v battery was cheaper than 6v.

[@bradfaught1695]

It's holding steady at 8 volts, even threw a couple 4 amp test lights in circuit to simulate a load since the fuse cover is missing and someone cut the headlight wires.

[@PineHollowAutoDiagnostics]

@@aarongarber5977 12V is the way to go!

[@zx8401ztv]

Well it does run, I'm quite surprised. Valves and seats will need a grind, that could help :-D And the Ti.. ... .. ..Ming :). Hopefully the piston rings/bore are good enough for a decent compression.. Ill shut up now :-D

[@mikechiodetti4482]

Better check valves on number 2. Intake looks receded into head. A machine shop could check all 4 cylinder valves, seats, and for warpage. How much oil is this engine using? Good possibility it needs rings.

[@michaelfraser5723]

A welcome brief trip into analogue history.

[@farmall1951c]

Nice video.

[@davidrmcmahon]

Can’t wait 😀

[@mattbrown5511]

I'd be loooking at the valve seat on the intake for #2. It may need to have lead substitute added if the seat has receded or may need to be replaced all-together. Great catch on a crazy situation.

[@ericcorse]

Nice Gravely hat I have a 64 L my dad bought new.

[@TH-1207]

A couple temporary pieces of all thread might have helped align everything as you put the head back on.

[@n506]

Out of interest, the "mis-diagnosis"... you checked cylinder 1 at tdc and assumed that the leak was via the head gasket when in fact it was leaking through the exhaust manifold and out via both the exhaust and the correctly open exhaust valve on cylinder 2. If you'd taken cylinder 2 to tdc and then tested, you would have seen the leak on the intake manifold but not coming out via cylinder 1 nor the exhaust manifold, indicating no head gasket issue? So moral of the story to be taken as a learning outcome is it's worth checking all the suspect cylinders independently and not just assuming a connection? Realistic outcome is that the whole lot needs to come off anyway though, so it doesn't really change anything, but if you were ordering parts relative to the diagnosis, a few mins extra on that cylinder 2 could have potentially led to just opening the cover and adjusting two rockers had cylinder 1 had the same adjustment issue on the exhaust valve. I have an old gas forklift I'm trying to get running as a project to learn more about engines and have taken a lot of interest in engine related content. Definitely down a rabbit hole! I come from a mindset where an oscilloscope is more familiar to me than the mechanical side, so I love the idea I can combine my existing skills and knowledge in diagnosis to overlap into mechanical diagnosis. Love your content. I know it is no small effort to produce these videos while working on the given vehicle, so thank you!

[@throttlebottle5906]

I would first check for signs of coolant loss or system pressurization. if none found next valve lash issues, certainly no hydraulic lifters/adjusters on there and they may have valves tight from wear and possibly running hot/lean on that end of engine. maybe worsened by rust on valves/seats from exhaust not being covered, possible even rodent nests(urine corrosion) on. so I guess a leak-down test on those two cylinders would be a great first step(assuming gasoline engine, which that is)

[@rickdennis605]

What’s up with this? Eric O posted a Steiner video this morning and you post a tractor video. You both branching out

[@theblackhand6485]

Valves and combustion chamber coal black = ignition off time or the engine is using oil. Perhaps bad piston rings or worn pistons? White valves = bad mixture (too) or timing is off. Even more likely a lack of lead. But it could also come from coolant.

[@janvanderwal2744]

Why do you think that when there's lash between the valves at cilinder 1 there's also lash at cilinder 2? That's normally not possible.. when both rockers are moving on cilinder 1 you can adjust/check cilinder 4, when the rockers at cilinder 4 both moving you can check cilinder 1 clearance, when the rockers at cilinder 2 both are moving you can check the clearance at the walves at cilinder 3 en when the rockers both are moving on cilinder 3 you can check cilinder 2.. always on 4 cilinder engines

[@mastercraftsman4213]

Was wondering what scan tool you would use on this old this old girl 😁

[@jcos55chev19]

I would look at intake valve #2 and its all the seats very carefully. I'm thinking possible valve recession in the head even on the intake seats. Old engines didn't use hardened valve seats and were made to run on LEADED gasoline. This engine is old and probably run on unleaded gas for many years. I think intake rocker arm #2 was either misadjusted during a prior repair or that seat was ground down another time and the rocker arm assembly was just bolted back without any arm adjustments after reassembly.

[@geraldmcfadden2270]

Make sure he puts a cover on the exhaust pipe because rain will rust the exhaust valve.

[@kthwkr]

When you got it cranked the radiator fan was not turning. Does a tractor have fancy temperature controlled fans?

[@neilmurphy845]

If it doesn't cost That much more I would definitely just replace all of the valves while you're in there.

[@robertbrandywine]

Yeah, he got burned on a Volvo by just replacing one valve.

[@neilmurphy845]

@@robertbrandywine yeah it's common sense to just replace them all because they've all experienced the same amount of use

[@anthonyiannone7618]

Im surprised you didnt start out with a full topology scan😂😂

[@adotintheshark4848]

It doesn't get much easier than disassembling the top end of an OHV 4. Easy peasy. Wanna fix it right? Replace all the valves, guides and seals and have a machine shop cut new valve seats.

[@Ram14250]

Hello Ivan! I've always wondered about the land surrounding you. Are the horse farms yours? Or Neighbors? It's all a beautiful area!!

[@davidturner4639]

Enjoyed the low tech content. Hate to go down the rabbit hole too far, but it might be a good idea to completely service the head if you can get the parts. The valvle seats are just not going to stand up to modern fuel.

[@jackpatteeuw9244]

If this is a "work horse" it need a full head/valve job. At an absolute minimum, all valves need to be lapped.

[@jonka1]

@@jackpatteeuw9244 Yes!

[@TheOnespeedbiker]

It seems to me if the valve seats are currently holding 160 lbs after 50 years of service, there is no reason to service the head as it's not going to get any better than that. With old farm equipment if it's not broken it's best not to fix it. Also, if in the future, it actually needs a valve job, keep in mind it probably only takes about 1/2 hour to pull the head.

[@thk7513]

@@jackpatteeuw9244 No, the vale and seats need to be reground.

[@riblets1968]

This is an interesting specimen only in that I can't find much information on the 2050A. I'm guessing they didn't make too many of them. Still, this looks like a fun project, akin to the Zaz you worked on a couple years ago.

[@aarongarber5977]

I think that may be the loader number, not the tractor.

[@riblets1968]

@@aarongarber5977 And the more I look, the more I think your assessment is correct. So what model IH is it? That's the mystery.

[@aarongarber5977]

@@riblets1968 somebody else in the comments thought 574?

[@riblets1968]

@@aarongarber5977 Plausible. Fits the description. I wish Ivan would get his neighbor to chime and and confirm though. Anywho, I'm not going to lose sleep over it. :)

[@thk7513]

Time for a complete valve job, guides, seats and valves and oh yes magna-fluxed. just to do a lap job is only a band-aid fix.

[@Dje4321]

Damnit Ivan. I need sleep

[@smokeskull]

Lay a straight edge across the top of the valve stems please. Looked like a lot of valve were recessed into the head

[@job38four10]

If valve job was recently done, why the same failure so quick......... Must be like a breath of fresh air working on old tractors....

[@tacocin]

Everything must be good because there's no money light! 🤣🤣🤣

[@libertyforamericanow]

12:00 no lash because the valve has wore into the seat

[@TH-1207]

I guess you ate your Wheaties in the morning. 😁

[@hikerJohn]

How do you get oil on top of the coil? It's above the valve cover gasket.

[@ohfugit]

Do you think the oil burning is from valve seals or rings?

[@PineHollowAutoDiagnostics]

probably all of the above haha

[@mike-s8n8y]

People on video who dont realise they are going to be on a video that thousands will watch LOL

[@raywalsh5822]

lap all the valves

[@American_Creed]

Cylinder 2 exhaust valve is open leaking from cylinder 1 to cylinder 2

[@arlo4051]

What would you be doing with a tractor that you would need to use the front end for a battering ram?

[@aarongarber5977]

Perhaps something dangling from the loader crunched it?

[@PaulCTownsend]

I was screaming check the valve lash before you take the head off.

[@suttoncoldfield9318]

7:14 what on earth happened to the front cowling?

[@PineHollowAutoDiagnostics]

His friend borrowed it to load mulch into a dump truck years ago 😢

[@georgebell3964]

👍

[@Iceeeen]

Here I'm clicking think 70s IH, that looks like fun, maybe some pump teardown forgeting it's in the US with a stupid gas engine 😂

[@LesReeves]

Iv you sure work on some crazy crap & I think the last person that worked on it either didn't have a torque wrench or didn't know the specs & give the torque & hope method.Cheers.🤣

[@xboxbml]

Yeah you usually don’t post this early do you?..I’m in a haze..

[@bobbybackpain]

Seems like it would have a valve train designed for leaded fuel. Burning unleaded fuel is probably accelerating the wear between valve and seat

[@1990smitch]

2050 A is the front-end loader # to the tractor

[@randy1ization]

the white powder is burning coolant..

[@wagoosh78]

valve pounded out seat taking up valve lash hydralic lifter not bleeding down can off set valve too

[@Texas-t-shirts]

Valve seat working out? British engines plagued w/loose seats like the SOHC Focus~

[@inothome]

I wonder if this is going to be a decent repair or one of those cringy repairs. Love the electrical diag you do, but man.... sorry, some of the mechanical shortcuts / "repairs". Ouch... Reminds me of a guy who's name begins with W... Stopped watching that guy years ago, so shady and most of the commenters have no clue on how shady the shit is but think he's doing a great job. lol If you're going to do it, do it right!

[@PineHollowAutoDiagnostics]

On something this old and worn, I'm just fixing what's broken lol

[@inothome]

@@PineHollowAutoDiagnostics Oh we already knew that was the plan, as little as possible... lol Good thing he's a good neighbor and hopefully close by.

[@ferdiecassel3697]

Back belt or a lift friend, or you'll wish you had later. Be safe.

[@GeorgeMcIntyre-o9i]

I did forget to buy I did forget about the bearings

[@ricfair9919]

I would at the minimum replace ALL Exhaust valves. Install valve stem seals.

[@jtjones4727]

I just recently sold my old 1965 Ford 3000 diesel tractor. I had not used it in 3 or 4 years, it was just sitting up. In fact the seat had completely rusted away to nothing. I put a new seat on it and cleaned it up, did some basic service on it. A little shot of ether and it fired on up pretty easy. Sold it for 3000 dollars, with all the implements. I think that's good deal on an old tractor.

[@davidheinzmann4403]

Dog walking time. Dog will have to wait.

[@davidcraven277]

It looks like #2 cylinder intake valve is sucked up in the head needs valve seats unleaded gasoline destroys these heads very common problem

[@pl5882]

P0420 code for sure..