Fixing My CAT D3's Fuel System & Exhaust. Cutting Open The Fuel Tank.

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I needed a break from working on this machine after finishing the pond, but now I'm ready to dig in and make her right. Let's see what we find inside this fuel tank...
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[@FarmCraft101]

VEVOR Thickness Planer s.vevor.com/bfQuEY, VEVOR Endoscope Camera s.vevor.com/bfQwqn, Discount Code VVSALE5 for 5% off. Have an awesome weekend everybody!!

[@toeknee5464]

even if you overpaid you know you have a reliable machine you have gone through yourself now

[@woodcox0171]

That looks like a decent planer, the feed tables are interesting. I couldn’t see any snipe there.

[@DuaneMckenzie80]

@@woodcox0171 i was thinking the same thing, couldnt see any snipe.

[@FarmCraft101]

It had some snipe, but not too bad. Agree, it seems a decent planer for a crazy low price.

[@bombardier3qtrlbpsi]

​@@toeknee5464I second that 👍

[@matthiaswandel]

wrong kind of magnet for woking thru the tank, you'd want magents with the polses fairly far apart, but also wide poles, so they have more flux than the sheet metal itself will take up. Those pot magnets have poles very close together, so excellent hold, but very little "penetration" so to say.

[@These_Old_Engines]

A wild Mattias appears!

[@FarmCraft101]

Makes sense. Good to know, but at this point I hope not to need them anymore! 👍🏻

[@Tjousk]

Indeed

[@tutekohe1361]

“Watch Wes Work” used the term “perpetual content generator” a few days ago to describe a Massey Fergusson Backhoe. You have good taste if you are also watching Wes and borrowing his witticisms. I feel the original exhaust stack was clamped to the muffler flange and not the bonnet flange and was a smaller diameter. It would be very unusual for the stack to mount to the bonnet flange. Your exhaust smoke is black rather than blue, which indicates unburnt fuel rather than burning oil, which then implies to me that your rings, pistons and barrels are okay and the oil use is more likely to be valve stem seals and that your injectors may need overhauling instead of an engine overhaul. That is going to be a great little tractor by the time you’re finished. I am really enjoying these videos.

[@FraLin]

It wouldn't matter how far the poles would be apart you would never get sufficient flux

[@andjuju6476]

I don`t get jealous very often but I think I am quite jealous of this guys cool demeanour & ability to fix & improve everything.

[@alcorbeil6226]

Hi John to remove the track, remove the grease fitting and back the idler wheel back then remove the tracks.

[@Ian-iu2tl]

As a retired machinist and all the time in the world to play around, I would definitely recommend fixing the guides properly. But then, I'm sitting in a clean, comfy armchair eating Doritos and watching you bust your back for my viewing pleasure. I like the outro music. Appropriate. Thanks for your content.😊

[@markusstaller1752]

Dear John! Ther is a solutin to your spraycan disaster: Turn spraycan a 180 degrees pull trigger untl it clears, so it clear the nozzle - put in storage. Greetings from AUSTRIA/Vienna.

[@jamiefultz5937]

You can release the grease out of the tensioner and use your excavator to take the track of so you can take the idler off and fix the rail

[@johnpeplow3985]

I never thought that I would find watching someone getting sludge out of a diesel tank interesting but I found it compelling.

[@PlatypusVomit]

34:15 - I work for a paint shop that's been doing (among other things) Caterpillar machines for 40 years, and I can confirm that 'Cat Yellow' has changed over the years.

[@FrozenFingers]

48:55 you found the most positive way to lock at that dozer (Imo). It does not work perfect, but your relentless struggle and dedication to getting it running well really drive the emotional investment I have in your videos.

[@Charlee_and_Pipo]

After you finish the repairs you are doing, it will be better than it came from the factory. You will greatly increase the sales value later. A great job, yes sir.

[@hubertwhitlock9968]

they make a nozzle for your pressure washer that's for cleaning out fuel tanks it's got little slits around the ball that spins and you can put that down in there and clean all of that out

[@szki272]

FYI Bottle jacks many of them will work on their sides if the pickup is on the bottom. Since it looked like you were working on pins. I actually made a portable press using thick steel plates and multiple pieces of all thread, and a jack.

[@Techathy]

When an FC101 video starts with a sigh you know it's going to be an interesting one!

[@rjkStudios]

After the past challenges with the fuel system, it was so satisfying to see all that guck removed from the fuel tank. 😎👍

[@WatchWesWork]

I'd put those track frames in the "run until it explodes" category!

[@charlesmoore456]

Make no mistake, Jon, I am SO GLAD you bought that dozer!

[@benclark5225]

Great video John: I'm surprised you didn't attach a piece of flex hose to the fuel pickup at the bottom of the tank and attach a float to the flex hose end so you would draw fuel from the relative top of the fuel level rather than at the bottom of the tank. I think this would eliminate any possibility of bottom feeding sludge and water and crud in the future IMHO. 🙃

[@additudeobx]

That Dozer has had a neglectful life. But it has a good Daddy now, that's going to make it whole again.... That's awesome.

[@davey4731]

That metal cutting saw blows my mind. Goes through like butter

[@voidthewarranty1429]

Woh up on pulling the tracks off. Try this instead: Fabricate a pair of new wear plates to bolt under the main track arms. Make them full width of the arm for ease of fitting. Then clamp them on with a generous amount of stiff plasticine with a thin film of Glad Wrap top & bottom so it doesn't stick to the wear plate and arm. Unbolt the plates. You now have a pattern to build up the upper surface of the wear plate with weld to compensate for the missing metal on the track arm. You'll need to use the old eye-o-meter to match the plasticine pattern, but it doesn't need to be perfect.

[@gordonagent7037]

Hey John, I’m living my life on the farm vicariously through you these days as had to retire due to poor health so really wanted to let you know I love what you do on your channel. Your video are pro quality, great commentary, filming and the content is always far ranging and interesting and the quality of your repairs is always practical. I could feel your frustration when doing the dam and although you may have paid more than you wanted for that little kitty Cat, she won’t let you down mate. Great job from Australia. Take care

[@Brauma54]

Concerning the drain valve: take one of those magnets with the eye loop, place it above the valve lever, then take a zip tie and hold your valve lever in closed position.

[@aresler6085]

When I lived in Brooklyn New York years ago fixing a gas tank meant removing it, putting it under the nearest fire hydrant, filling it with water, and soldering away. Gas pockets at the top made gentle explosions until all the fumes were gone. Ah, youth. Regarding your fuel tank patch, my concern would be rain water getting in: it looks like you've got it sufficiently sealed to prevent that.

[@ltanthrax8435]

John your our master of repairing just about everything...sometimes old paint cans can be revived by soaking the can in a bucket of hot water then shake like a mad man

[@JCWren]

6:41 Jon, the flash on your phone is on.

[@Kalle1995]

When you are done using a spay paint can turn it upside down and spray till no paint comes out then you are good for next time you are going to use it ❤😂

[@Locane256]

9:06 "It's probably fine for sparks to be flying around in this fuel tank, after all, it's just diesel, but I am going to fill it with water anyway" -- The man who caught his man lift on fire with torch metal and old oil 😂😂

[@augustland8952]

Great content no stupid background music, nice work and really worth spending 1 hour watching, keep upload good job 👍👍👍

[@willwade1101]

When I was doing Heavy Equipment Mechanics what we would do with those worn idler arms was grind them flat and smooth then weld a piece of sacrificial flat stock on top. When it wore to a certain point we would grind the welds and put another piece of material on top. This saves a bunch of time instead of welding up the surface and lasts almost as long.

[@sjv6598]

Blimey that tank was dirtier than my browser history! No wonder it was clogging filters so fast. That was a great solution cutting an access panel next I loved the bottomless box when you were spraying 🙂

[@paulpowell9579]

John, when I was in the Army we used to "purge" fuel tanks on those M60 fuel tanks by dumping a whole bottle of dish soap in the tanks and sticking a hose in and let the water run till got all the soap out. Those bubbles would pick up all the loose particles and float them out. Something to think about.

[@jefferywright4204]

John - When you finish using your paint rattle can, invert it. and clear the supply tube and spray nozzle by releasing some of the propellant until it no more paint is released. Keep the spray can inverted and store in that orientation until the next use. This should solve your spray paint problems for the future. Hope this suggestion helps. Use it for all the rattle cans you keep around.

[@user-rq5eg1yz3n]

John, When you have completed repairs, you will have a new Cat dozer !!! The challenges that you have solved are amazing.

[@kz6fittycent]

"Shimming the Idlers" was the name of my 90's alternative rock band!

[@reakajohanson996]

"Watching his videos every week is like that meme: 'I don't want peace; I want problems always.'"

[@DrFiero]

IF you can't get the tracks off - I'm seeing a thick copper shim between the bracket and the bottom of the rail. Use a hard wire in the MIG and do build up to fill the missing area. Then find some strips of AR400 (or 500) and weld them onto the bottom of the rail as new wear strips. Oh, and always remember that there is "new cat yellow" and "old cat yellow". Not sure when the change happened.

[@raptorgamer8878]

love the context generator because at the end of the day you know what's up with your machine which last till the end of days. we love your videos 1 hour 2 hour what ever we will watch you.

[@mrsuperduty100]

Another great video John. In my 40 years of diesel experience compression tests on a diesel are not necessary. If a diesel has low compression white or gray smoke out the stack and excessive blow by will be present. You can temp gun the exhaust ports at idle to test cylinder contribution. Check the intake and exhaust sides of the turbo for possible bad turbo seals. Most large diesels from that era just used a lot of oil.

[@randyballew8795]

You have definitely helped and improved the performance of that Cat

[@DMSparky]

Really excited to see the next video! You’re a brave man. Soon it seems like you’ll have a fully restored machine.

[@ryanm836]

I know your taking about sealing the lid from diesel leaking out, but honestly id be more worried about rain water leaking in. Might want to rtv that instead of rubber gasket. Keep up the good work!

[@lawman5511]

Awesome video. American ingenuity on display. Caterpillar never thought anybody would want to clean out that tank.

[@ausseamore8386]

Thanks for encouraging me to struggle through difficulties by your example led. There is no accomplishment of anything without sacrifices.

[@seansysig]

John that’s a cast iron rail guide. Preheat rail to 400 degrees F and weld with silicon bronze.

[@neffk]

You can often clean spray paint tips. Replacement tips are also good to have on hand. Invert and spray a little too clean, then wipe with a solvent. For supper 77 toulene works. Mineral spirits, paint thinner might work. You can also recharge the can with compressed air if you run out of propellant or get a chunk before the spray tip.

[@thomasrennison9461]

I know the trash from that tank has caused you lots of grief. It has a lot of crap inside it and fortunately you’re smart enough to accomplish a job of this magnitude. You will definitely be rewarded in being able to use the dozer in the future without those issues that have plagued you for a long time. Great job!

[@SimpleTek]

Thank you John for such awesome videos.

[@wayneswonderarium]

33:49 soak the tip in mineral spirits for a minute and you can clean out the clog. If it's because the paint in the can is just not mixed well, Adam Savage showed a drill attachment for spin mixing paint cans, and someone on here used hose clamps on an old recip saw blade. Both options are much more effective than our puny arms 😂

[@download77]

“shocking that that leaks” Made me smile.

[@dadgarage7966]

There's lots of return to rebuilding (or refreshing) the engine. More than improving performance, improving reliability -- replacing seals and potentially finding small problems before they become big problems. Indeed, a lot of additional work, but it adds value to the machine.

[@rurimuni2937]

John is forgetting the hidden value of "Endless repair video content on KZbin"

[@erikcourtney1834]

One big reason I built my truck transfer tank out of stainless steel. It’s 16 years old and looks brand new inside and out. Obviously different than an existing equipment tank but still… think about the future. It will save you time and headache. 😉

[@canuckchris5733]

Soooooo Satisfying watching this episode. I’ll sleep good knowing John did this to the D3

[@pauldriscoll5010]

I do like the temporary fixes like that valve where you find them still in place and working 10+ years later

[@Krunsy]

Hey Jon, thank you for what you do - all the way from Croatia. I’m 23 and always watch your videos after work (read: graveyard shift) to fall asleep relaxed. I find your videos very entertaining and I especially like the random emojis you put in them, it’s very funny (especially when you say something’s gonna be easy and you put a fast nope on the screen😂). You remind me of my dad when he was a bit more capable of doing jobs with me. Keep doing what you do and keep the style!

[@JesusThineBeTheGlory]

Oh yes these next videos are going to be excellent!! The repair videos are my favourite, I hope John get a million subscribers 👍👍👍

[@allenwitter5451]

I enjoy it when any body takes old equipment and fix it up, well done.

[@heel57]

Think positive - had the dozer been flawless we would not have had these interesting videos!

[@lycanthrope8979]

John, listening to your self-depracating and humorous take on things, make me think you're in my head. 🙂 It's very familiar territory, and at the same time, you inform and instruct in the best way possible; by trying things logically, and not being afraid to try...something that seems lacking in some of the generation...making a mistake, owning it, learning from it lauging at yourself and moving on. Please keep up the good work and content. I look forward to spending almost an hour listening to you doing things and letting me ride along in your head while you do it. 🙂

[@odiesclips7621]

I'm staying tuned for sequel(s). Hooked on this stuff.

[@joelx77]

You've inspired me to do the same for my 1996 excavator tank with all the same problems! I just don't have all your tools 😂

[@jerrodsimmons8356]

Squatch has a nice homemade pin press. I realize that doesn’t do you any good, but I’m confident with your skills you could build one just as good! Good luck!

[@scapriglione8642]

I’m very grateful to you John for putting out these videos every week. I so look forward to them because they are the perfect combination of interesting, educational, entertaining, and motivating. Seeing you tackle jobs gives me encouragement to take on more of my own. How you manage to do all this AND make a high quality video marvels me every time!

[@lennyf1957]

51:50 It's very definitely a design flaw on the part of Caterpillar do not put an access panel into the fuel tank. Fantastic job as always.

[@davebennett5069]

Every time you're done with a can of spray paint, but there's still some left - turn the can upside down and spray a small amount until it comes out clear. This will keep the nozzle from clogging when the leftover paint dries.

[@jaywalt1311]

you cant do that on a lot of the newer cans, they are designed to paint in any orientation (or so they say lol), =(

[@ChiefNonsense]

Came here to say this but figured someone already had.

[@paulhammond7489]

If you are only going to use the dozer infrequently, then consider placing those strong magnets inside the tank, place them close enough to the pick up tube to capture any errant rust particles, it'll save some of the issues. Or simply wait for your in-line filter to clog and then clean the tank :)

[@andrewdavy8166]

Another excellent video. Interested to see how you tackle the track removal, I would have the dozer out side then release track tension and flick them off with the excavator bucket or chain and walk them off with dozer.

[@walterlotz2085]

done that with old AC5, and an old JD 420C. But they are both spring loaded, just have to release tension, walked track off with a few long bars

[@gutsngorrrr]

Quick tip on spraying with spray cans. When you finish using it, invert the can and spray until paint stops coming out, this clears the nozzle and stops it from blocking up, so it's ready for next time.

[@madmodifier]

That used to work. Most of the time now (in my experience) they still spray upside-down.

[@FarmCraft101]

Agree. I always do that but I also let cans sit for years and then complain when they don’t work. 😂

[@incubatork]

Does not always work as I have had cans run out of air and still half full of paint, especially when its a touch up can that you use for many small jobs over the months.

[@GRAZINGARIZONA]

​@@incubatork Theres a channel called 65 ford, he showed how to repressurize any aerosol can that has gone flat. Video is prolly bout 3-4 years old but still good info if you're interested.

[@gcranch9913]

65 Ford is just as great a channel as Farm Craft! He is one heck of an engineer

[@barrygrant2907]

What I like about your channel is your attitude. When I was training young airmen to be NCOs, I tried to impress upon them sometimes you have to make a decision and live with the consequences--right or wrong--because you own it. Doing something is better than doing nothing. Even when things don't go or aren't as you planned, your "It is what it is" is true, and you just deal with it. As for the tank, job well done. I would have painted or rust-treated the underside of the cover plate and also the fill neck since both those areas are more prone to air and condensation exposure. But yes, a full tank is a happy tank when it comes to rust prevention. One last comment, you could have placed one of the magnets on the inside of the tank next to the pickup tube opening to catch any metallic particles. Add me to your subscribers.

[@HazItMade]

At least it wasn't a tankless job! John, for many years my friends would refer to me as Tim, even though my name is Mark, as in Tool Time Tim from Home Improvement. They seemed to think I owned every tool known to man. And back then I had a lot more than I do now. But you have me beat, hands down, by miles and miles. They say that, "He who dies with the most tools is still dead", but if it were, indeed, a contest, you would be at the very least a contender! I have to say though, your ability in terms of "ounce of prevention/pound of cure" has both my admiration and respect. Wish so badly I was better at that! Anyway, glad you're on "track" to getting this thing 100%! Namaste

[@GTNLOST]

Always enjoy your videos. I must admit, however, that I enjoy watching you fix stuff a tiny bit more than watching you use them when they are working.

[@joshuaolsen8844]

John! You’re like the weird uncle we all need! Love the content! Your loss our gain!

[@lucilleking7495]

Great video John, I thought you were going to sandblast the inside of that tank to remove the rust,But you got it clean. Vevor stuff seems pretty good. I bought a 85 ft garden hose reel from them, Noticed the back was separating on the swivel mount, contacted customer service they were excellent to work with even though I'm in Canada , fixed it myself( like you would have) got payed back for materials used & money back for the product . Would buy from them again. Gord

[@gregwitkamp5583]

The cause of all you fuel dead acks is usually the fact the tank wasn’t filled at the end if each day as well as being unused or setting for a long time . Always keep tank filled to eliminate condensation

[@Bobbysmitreshop]

When fixing the guide on the track, you should build up the parent material and make flat. Then weld on the shim from 3 sides. If you just weld the shim in on 4 sides you eill have to take the track and idler off if you ever have to fix it again. Just a thought!

[@bobbg9041]

6:50 plug it, fill it with water, take a plasma cutter cut out one side, weld on a flange and drill and tap it for a rubber gasket and cap, sand blast the tank out.

[@HueToobBlows]

For the wear plate, you should put one on track frame and one on the wheel slide. By doing it this way, you will wear on the plates rather than wearing into the frame and the wheel side wear plate or vise versa.

[@s.m.aggies7220]

Hello John, I reviewed a few comments but I do believe checking the fuel tank CAP the cap has a breather to allow air flow so fuel can drain. So the breather needs to be cleaned or replaced with new internal materials. That could be part of the dirtiness inside the tank filled with dust. See u later John, from another John T. in Calif.

[@beaverc2884]

Idler wheels. Fill the uneven area below with weld then put new wear strips over that.

[@terencecottington4273]

Appreciate the pick line is a 1/4" off the bottom but I would have raised that even more to minimize the risk of anything further being drawn into the fuel line. You done a fantastic job cleaning all that gunk out. At least now you have an access hatch for next time. 🙂

[@LinkinPark4Ever1996]

No need to, now it's clean

[@DB-yj3qc]

I thought that too.

[@terencecottington4273]

You'd be surprised what another 1/4" would make. Providing that tank stays as clean as it is, I agree with your comment but I'd rather play on the side of caution and still raise it off a bit more but then that's me and a lot of OCD 😀 @@LinkinPark4Ever1996

[@UptownMovies]

This CAT is getting to be an old friend. We stop back to visit it every couple weeks and see how she's making out. Her situation is gonna be the focal point of that old saying. "If it's not one thing, it's another!"

[@anthonyhoult152]

Brilliant video John and looking forward to watching your next adventure. A tip on the spray paint cans, when you have finished spraying hold the can upside down and press the nozzle until no paint comes out. This stops the nozzle clogging up with dry paint 👍👍👍

[@bmwbaker]

I look forward to your content and you have never disappointed. Thanks for all your hard work.

[@rpetty]

Your willingness to tackle these projects AND share it with us is inspiring. Can’t wait for the next one. Is there a Vevor link? Thank you.

[@FarmCraft101]

Just added to the description.

[@Pwn3dbyth3n00b]

This video made it seem like the fuel tank was just an afternoon fix vs the multi day headache you had trying to start the engine, cleaning filters, replacing filters and jerry rigging an inline filter.

[@silicon.alchemist]

Jon: Great video as always! I always take the spray nozzle off a paint can when I store it, and drop it in a glass bottle of acetone or lacquer thinner for storage. I have a whole bottle full of clean spray nozzles to choose from when I need the paint again...

[@xyzero1682]

I knew you would likely have to fix the tank, and I'm glad you got in and scrubbed it. Its maybe the most SATISFYING video you've made. Nice work.

[@haydenc2742]

Yeah and a long term PROPER fix...access port to the tank...wonder why they don't make one from the factory

[@j.6756]

To recharge your spray can, take a needle inflater for balls... and attach it to the spray can after you take the spray nozzle off. Turn on the compressor and press down on the needle attachment to allow air into the can. I use a milfaaukee 12v compressor set to 50 lbs. Shuts off when at said pressure. Works for wd40 cans.. should work for any can.... although the air may cure some of the paint... but hey... you want to finish the spray can... not store it for another year... or decade... or for your grand kids...

[@rocksfire4390]

the content generation machine blesses us with more content, taking those tracks off seems like a massive undertaking. i'm sure the repairs could be done in like 1/4 the time but you reposition us and give us a good seats every time so thanks.

[@ianmarsden8568]

That sodding thing had it coming. Must have been dispiriting to think about all that time you took fixing it on the pond job, knowing now that it was never going to help you out. Satisfyingly done.

[@BPeterson730]

Would love to see you do a full fluid service change on your next video! I really enjoy your Cat D3B videos! You have taught me so much with mine. It’s a 1979 Cat D3B. Almost looks identical to yours.

[@knappingrk]

You're one of the few guys that I don't mind watching sponsored videos and I've actually bought many of the things that you've reviewed. You just simply got an extremely good Channel, I hope it grows by leaps and bounds thank you for the content. So much better than television.

[@voidthewarranty1429]

Hi Jon. I would weld that inspection plate onto the tank, then there's no risk of water tracking in under the seal (bad seal!) and contaminating the tank. Unlikely you will ever have to go back inside to clean it out, and if you did, it would only be 30 minutes to grind out the welds enough to pry it open. By the way, angle grinders are my favorite tool. I have three Makitas each permanently set up with a cut off disc, grinding disc, and a flap wheel.

[@TonyLambregts]

52:00 spoiler for your next video! Looking forward to it. Thank you for taking us along with your endeavors. Great video as usual BTW.

[@meisterrumspuckl3965]

Slowly i start to feel pity for you...but your pain in the required fixings is our benefit in watching a new interesting video!!

[@trespass2085]

john you are a brave man to take on that cat d3

[@andymann9861]

Great job, John. I’m kind of glad to see we get additional video. Thanks

[@davidhorton4611]

Really a great idea to access the tank to clean it out. I have the same dozer, and I just blow the line back toward the tank and it clears the junk for a while. I like this for a more permanent fix.

[@frodehau]

Soak the spray can nozzle in acetone to revive it. And remember to always blow the nozzle clean after use by turning the can upside down. (But you already knew that) I have a dedicated cardboard box i use for that, its deep, and captures most of the overspray.