This Truck has Coolant in the Diesel Fuel! Lets Fix It. 

I removed all 12 injectors on a 3412 marine engine. I turned the main fuel supply tap off. When I came back in the morning to fit the new injectors, the whole engine was full of fuel, cylinders, exhaust manifold and intake manifold. I spent all day with an oil sample gun sucking out over 6 gallons of fuel. Turns out the main fuel shut off valve was faulty 🤬

When I use a tap, I put grease on the tap. Not only does it lubricate the threads, it collects chips. Good job.

20:54 - Now we finally know the true reason you left your old job…. So you could use a REAL hammer again! 💪 “I survived” ✅ 😂

Just wanted to say thank you for sharing your life experience with me!!!!! I really like the scenery you share!!!!I've never seen the mountains and beautiful open area's!!!!! I've been paralyzed since I was 15, got hurt playing sports in high-school... Again thank you for your time !!!!! John

18:00 Seeing your drill extension brought back memory of about 4 years ago. Good customer hd brought their car. Did some brake and exhaust work. I went to pull it out and it started a bit rough. I checked the plugs and it needed a set. Dude i had working for me did them in about 20 minutes. He left I went to move the car and started it it sounded like rocks in a tin can. He had used my locking extension from HF. The set screw that goes between the collar and the rod inside the extension fell out into cylinder. I had to buy an engine to get a good head and slapped it on. He said he noticed the extension was fucked up but didnt say anything.

Good old fieldwork is funnier to watch than shopwork. Keep it up and the videos comming.

Had a fuel in the coolant problem on a Mack MP10, very weird tho. We thought it was cups at first and changed them. Unit ran for like a week after no issues, then it happened again. Tried other things, had the head pressure checked and such, but each time it would take a week for the fuel to show back up in the coolant. Turned out the older 7th injectors were cooled with coolant, and this one cracked internally. When the truck would push fuel into the coolant on regens

I love the screaming goat

Gotta say Josh. This is way better content than you made in your past. Love the new independent Josh. Keep on trucking.

In the Army we called those sample pumps "vampire pumps" 😂

The cat tool blows! Its just a bolt, and some washers, that don't work! The installer is just a master bearing plate installer. I used this kit on a 349 cat excavator, worked amazing, just put some bearing mount on very bottom lube, up. New seals, use installer 😊

Non soft face hammers with your nitrile gloves. Breaking all the rules. Need to get safety over here and file a report.

You got your own 'Prudence' - the safety goat. AvE.

The International injector cup tooling for the DT466 uses a tap and an adapter with a slide hammer for removal. I liked to use grease on the tap for lubrication and to help catch the metal shavings. The tool seemed to work well, but the slide hammer was hard to use on cylinders 5 and 6 if the cab was in the way. I like the puller style you were using. Thanks for the great videos!

Your gif usage cracks me up every time!

Folks are fortunate to have you 👍🏻

I purchased Ferrum Tool's injector cup removal tool for my 2014 Volvo D13. Absolutely awesome tool; worked flawlessly.

As far as the plastic Ford intake ductwork goes, i use a heat gun to gently warm them up and make them more pliable. Works to take apart and reinstall

Not questioning your technique, I'm just interested in chemical usage. Why hexane instead of acetone? Do you use hexane for other processes around heavy equipment?

The eco boost engines in the f150s are a nightmare of hard plastic tubes running everywhere

Thanks for another interesting video! I made a vacuum collection container from a Preen container. I drilled one hole to snug fit the shop vac and a small hole to fit a 3/16" fuel line. I can adapt it to different sizes as needed. It give me a nice way to suck out oil, antifreeze or whatever from head bolt holes or whatever small places that need to be, sucked!😊 Keeps the vacuum clean and rhen properly discard the contents!

Great fix Josh 👍🏻 lovin your in the field fixing videos sweet 😊 🏴󠁧󠁢󠁥󠁮󠁧󠁿

Josh I have the same ladder for working on my truck so much easier with it.

I bought a l90b Volvo loader years ago and got a good deal on it because Volvo said it needed a head gasket. They supplied everything needed to replace the head gasket so I made the deal with them. It was putting pressure into the cooling system. When I was troubleshooting I found that an injector cup was leaking. I didn’t know how to get it out so I crafted up an idea and it worked. I used a tap and tapped it into the brass injector cup and then used a slide hammer to pull the cup out with the tap. It worked perfectly and after it came out I discovered why it was leaking. The tip on the injector cup had broken off. Sometimes you have to be creative when you don’t have all the tools. Great video and I’m glad you are getting lots of work on your own.

I learned a little more about injectors. Thanks 😊

who makes the drill cleaning tool?

Sobe glass.... damn were getting old

I work on underground mining equipment and Maclean bolters with Mercedes-Benz 904 diesel engine. I have always seen coolant in fuel and never fuel in the coolant.

Josh I’ve been a subscriber for some time now. I really like your videos & I’m glad you left Cat to keep doing what you’re doing. I am not a diesel mechanic & I know very little about them. I’m a car guy. Why do the injectors even have the cups vs machining the actual head to accept the injectors?

Pretty great Josh. Happy weekend 👊👍💪👊🔧🔩

Was an auto tech for many years. I use large sheets of cardboard on gravel, I find I slide very easily, give it a try. I only worked on a few diesels in my time but I really enjoy your work. Thanks

Lots of good detail in showing the repair. Like this channel. All the best from OZ.

You are your own boss now ...... So much better

Curious what the syptoms were. Was engine running rough etc? And would it hurt the engine to run it for a long time this way if it wasn't running noticiably bad? Reason i ask is I bought a C7 truck from auction and i noticed fuel was red. Runs great, and assumed it was farmer diesel but coolant was just above the low mark. Added a little and drove it home. Seems fine, but now im wondering if it has leaky cups.

You ever get the van sorted? Ps, there's a slingblade joke in there somewhere..."aint go no diesel (engine) innit" Anyway, hope the new business is going well 👍

You need to sell that goat on your store. Would love to have one

I had fuel in the coolant. Leaking injector cup (ISX 15 Cm2350)

Great job! and I hope this new business venture works out!

Thank you, great video! I was wondering if you needed to drain the fuel tank after the repair, since there still might be coolant in it. Or would the fuel-water separator catch all that? Thanks!

Nice job that Josh. Western State employees jealousy through the roof when you used that ‘hard faced’ hammer!!

ALWAYS BUY NEW injector hold down bolt. Ask me how I know, $!0,000 later. That’s what being lazy gets you

Hi Josh, When your cups are leaking I also assume it can cause coolant leaking into your engine oil, does that happen often with leaking cup seals?

Wait, hold on, what was you saying about western states not allowing the use of real hammers? Please explain, what did you use in their place?

10:38. HELLO. Reason IN this Case Coolant is getting past the one way is coolants getting to a higher pressure than the fuel due to.a weak fan clutch or a stuck thermostat. Coolants getting too hot.

Did coolant make it into the injectors, almost certainly damaging them? Or was it entirely stopped by the water separator?

Another Great Video, Josh. What brand sample pump do you have. Thanks.

Hi good job, why are you making “ door to door service ” , what happened with workshop work .?

My work has a similar tool for removing injector cups and we use grease on the tap to collect metal chips.

If they were running dyed fuel this definitely would have been a harder diagnosis 😊

Ran into coolant in fuel but not other way around multiple times on series 60’s and one time on a 7.3

For the people who run in cold areas, how often have you seen the fuel heater circuit leak coolant into the tanks?

It is nice there. Looks like just another nice day in central Pennsylvania.

what is ideal temp of diesel out injector for better combustion, thanks

Noice!

Man love your videos but u kinda make my mechanic look like an imposter

Are you coming to Florida anytime in the future? We need you here!!!

Nice work Josh. Beautiful location and day. Hope you’re loving being independent.

Are coming to Florida any time in the future?I need a good I need you here.

Can you do a video troubleshooting with oscilloscope? 💐💐💐💐

A small ladder is a godsend for us that are slightly older and have bad backs.

I'm 0 minutes in and I'm sure it's injector sleeves / cups.

LOVE YOUR VIDEOS SINCE YOU QUIT WESTERN STATES, AWSOME INFO.

See I didn't know cups have o ring❤s

We had an engine that kept putting fuel in the coolant but no coolant in the fuel. Volvo coolant o-rings and such do not tolerate petroleum at all and you tear down a lot of stuff to plug the leaks. When it came in the third time with fuel in the coolant and leaking coolant everywhere I pitched a fit. The fuel system had ben pressure and vacuum tested, cups replaced, head replaced , escalated tech support, bla, bla, bla. I went to the yard with the foreman and got a nice little nugget of info from the driver finally. In the shed with coolant and oil barrels there was also a fuel barrel...... Idiot driver thought the coolant needed topping off and somehow couldn't tell the difference between coolant and diesel. For some reason that wasn't covered by warranty and they wound up paying for that misery, about 100 hrs labor and parts.

Sobe..... Havent heard that name in a looooong time

How soon after this operation, Change the oil?

Fantastic video

Patent that bolt wedge asap. Before Chinese steal idea .

Great video and with my best regards.

Man i bet your old job misses you every day

Josh. Always learn something from your videos. Thank you.

Where did you find a Ford with a cat motor

That was a tricky nerve-wracking moment getting those old seats out .😮 Nice job . You may already have one in your truck .do you have an inverter in your truck then you could probably get a small air compressor in your truck ..just a thought. 👍👍👍

I'm built like a f750 so getting under smaller vehicles is a struggle with a standard creeper. I need to know where to get that track creeper.

Another very satisfying video!! 😊

That tool kit looks like the IH 7.3 cup tool kit(cutter and all included). I only used a few times....not for coolant issues...for burned bottom of cup from compression leaks. Never had a problem with the tap other than the guys wouldn't take care of the thing...typical shop tool neglect...always results in damaged and missing pieces. Did you have to buy that set for yourself? Take care of it and it'll last forever.

Fun video! That 1” tap is impressive. Nice job finding the source of the leak.

I worked at a facility and knives were banned. You had to have special permit, and if caught using without that permit resulted in being black listed. Sometimes it makes no sense why companies won't let you use common tools.

Good information 👍👍👍👍👍

I have been watching your videos for a while now. My company trucks are primarily Cummins X15's. But I just personally bought a truck that has a cat 3126. So now your videos are even more valuable to me

Hey Josh, when I was a field tech at empire I thought I saw a bigger sample bottle in the cat store. Might be worth checking out. Atleast another ring bigger. Thanks for the videos, is a beautiful place up there!

Great diagnosis Josh and tapping the injector sleeve is a new on me 👍

At least those cups aren't like the 3116 where you have to use that stupid swedge tool. The one we had was dull and wouldn't swedge the cup over evenly. It kept stripping the forcing bolt. If I was lucky I'd get 2 cylinders out of one bolt.

Cat has a two bolt injector pulling group 367-3070 shown in 2020 dealer service tools catalog! Have used it many times and works well! Works on C9 as well.

G'day Mate, Thanks for another informative vidio. I don't do much engine repair work however I like to see this type of stuff done. It's all great information to have. cheers, Butch.

Loaded lumber in Priest River back in the day. It was great as the mill loaded at night so I didn't have to sit. I heard the mill closed? Is that true Josh?

SoBe is still around, distributed by PepsiCo now. We can get it in our area, though a considerable distance from yours. Took me a while to figure out that you weren’t talking about Sobey’s.

Great video, Josh . Thank you for sharing.

Because I watch your channel and everyone gets to hear the goat scream last Christmas I received the plastic screaming goat as a gag gift. Scares the heck out of my dog and he is not one to shy away from anything. Love the videos and thankyou.

Happy you are able to keep grinding!!!! Stay safe and happy

I have that cup tool kit....I put foam ear plugs down in the small end of the cups at the bottom before I tap them out. Works good and can do all 6 at once and they come out with the cup.

My customer wasn't that lucky his c7 was pushing coolant into the fuel tank, his head was cracked.

Love these long videos sir! PS- How is your service truck holding up? Putting alot of miles on it?

Imagine the DOT checking the diesel fuel and you’re having this problem

I used a similar cup removal tool on my C7 but it did not come with a plug. I used grease on the tap to prevent the metal shavings from falling in to the cylinder. It, luckily, worked fine for me.

Not that I ever plan on doing the job, the engine in my RV is red, but it is interesting to watch. Keep the good stuff coming buddy.

You are truly a diesel mechanic thank you for your video

Hey up josh nice work on the diagnosis mate and the remedy and the work environment, have always enjoyed your screaming goat and think it should be part ov your logo you've a lot of white van to display it, good happy video mobile seems to be suiting you

Bloody love your work mate!

How many hrs was that job?