Diesel In The Coolant? What Are Injector Cups And Sleeves? Fuel In The Coolant?

[@fastinradfordable]

I've been a top notch -car- mechanic for a decade now- and I would come work FOR you. learning how to fix big trucks is highly renjoyable

[@galenbowman6247]

We have a 1998 3406 in a freightliner, been losing coolant sporadically for several weeks now. Also ran rough for a few minutes at startup a couple times. Just today discovered coolant in the fuel return line. Thanks for steering me in the right direction. Great video!

[@geo.sackett8154]

this guy is good, very knowledgeable. thanks.

[@andireimer]

i dont know how people can dislike ANY of his Videos!😠

[@AdeptApe]

+Chess tradamus I've got a few dislikes, but overall people are pretty positive on here.

[@adriana.garciabustos4609]

Amigo en español

[@adriana.garciabustos4609]

Esta interesante

[@al-mubdizahir8704]

Love your videos man. I'm a aspiring diesel mechanic

[@adamscott5175]

Brilliant videos man. I really appreciate you sharing your knowledge and expertise.

[@cedrickody1189]

instaBlaster.

[@denismarku1712]

Hi Josh , I got engine oil going in the fuel tanks , Before I make a move, what do you think it is? Thank you so much for the videos four years ago you saved me a big money. God bless you, man.

[@lubasiuriel1134]

Very educative information.Thanks Bro

[@MrBigR928]

Always so calm and cool you are! I like my Mechanic to be mellow. I dont want my mechanic sweaty and looking side to side shifty eyed and fidgety when i come to pick up my W9...lmao. Good stuff Adept as always 😎

[@AdeptApe]

+Big R Phillips lol, you can pay in cash or meth, I mean cash, I mean aaahhhhhhh.

[@cortransport]

Adept Ape lol

[@MrBigR928]

@@AdeptApe 😂

[@westtexastll1978]

@@AdeptApe 🤣🤣🤣🤣🤣🤣

[@westtexastll1978]

@@AdeptApe I know this is an old video BUUUUUT I am just seeing it... Could anything else cause fuel in coolant besides injector cups?? I don't see anything looking like a heat exchanger type "fuel heater" (similar to the oil cooler) for a leak to happen... My bet is the mechanic being in a hurry sliced an O-ring when installing new injector cups. 👀🤫🤣😭🧐

[@headfirst6227]

I just had my 2015 Detroit DD15 with just over 900k miles repaired. They pressure tested my injector cups and said they were fine. Turns out the cylinder head has a crack. No remanufactured cylinder head in the foreseeable future so they installed a brand new head. That repair cost me 15k.

[@TruckerEeee]

Great info right to the point with the price...

[@jaybee5832]

Thank goodness that's not a problem now. Just had to buy one, just under $2,600.00 to the door.

[@jeffsmith8066]

You need a flex head ratcheting wrench! I love it for doing Volvo/Mack injector cups.

[@Kingelbey]

What causes removal the cups & the heads start to cavitation on the bottom of the heads

[@AdeptApe]

I just replied to your email, but cavitation is caused by coolant boiling in spots next to your cast iron parts and slowly putting little holes in them. Not all damage is cavitation though, it could be rust or electrolysis as a cause as well. If the damage is not in your seal area though you should be okay to reuse the head, depending on the amount of damage.

[@Kingelbey]

@@AdeptApe thank you ✅

[@arturliepins9821]

Just strated to repair CAT D5N with same issue, at the start I thought crack in head, then remebered bad cold start on CAT 962gII - and bingo we got bad sleeves and O-rings.

[@makincash3337]

Is there a test to determine this?

[@derrickvail4110]

First off great videos. You've helped me a ton. I had this exact issue on my western star 3406. I did every per your video. Mine differed a little in the sense that it has two nuts to be remove from the jake housing and there's two connects that run on top the top of the jake housing and clip in and says torque to 10lbs and had a snap ring. But my issue is after replacing the cups and flush/new coolant, my driver went to start the truck this morning and it attempted to start just once. I just got here and it made no attempt to turn over, the only thing it did was a loud audible Thud or slam.

[@derrickvail4110]

Correction. The driver said it never attempted to turn over. It was only a loud thud or slam sound

[@AdeptApe]

+Derrick Vail Sounds like you have fluid in the cylinders. Did you evacuate the cylinders with a vacuum pump? If you didn't it is okay you'll just have to slowly turn the engine by hand until the fluid is pushed past the rings. Did the engine run after changing the cups?

[@derrickvail4110]

I did not try to run it because it was late and didn't know if the sealing compound needed time to set up before running

[@torres6021]

Keep making videos so i learn a lot from them i love caterpillar engines 👏👏👏👏👏👌👌👌👌👌👌👌

[@freerepublicusa2064]

I have a 2005 international 4300 with dt466…getting lots of diesel in coolant. I’m assuming this may be the issue. Wish there was a video on that engine.

[@madratter]

Excellent video. Thank you. I'm not a mechanic but I do need this info when talking with my very skilled diesel mechanic.

[@edwinrecinos4478]

Tks I have head ache with my freightliner but now you help me, and I trade to fix the problem only looking for tool to remove the cup inyectors,

[@donaldjrchappell6800]

Question for you Josh... 3126 in a early 2000s C6500 GM. Do you know if the cups can be done In yhe truck.

[@jamsatsolutions4479]

💯💯💯💯…..where can I Purchase the Tools that are Needed?

[@asafegous]

Francisco amaya just did a replacement sleeve video on dd engine. Very similar

[@garycarroll9447]

I wonted to see the o ring do the o ring go in before the cup or after ? Video is grate

[@forsakenfewful]

Great video!

[@corybell1255]

Thank you for your video

[@alejandroyonet2010]

Hi, where can I buy these tools?

[@isofwssam5300]

Thank you good job

[@Finnamakeausername]

Awesome video again Adept!

[@hermantoofa1868]

Thank you for this vidéo , i have same problem some diesel in my radiator on my volvo genset TAD734 GE.i think the problem is the injector sleeve or o-ring. What do you think?

[@XLP-l5c]

Thanks

[@alexj1773]

Hey!! adept good to see you again buddy.

[@joelgonzalez6941]

Very good work helping driver and mechanic how i can send a donation

[@wolfgangkohler2508]

Great video. Very interesting. One question however; after you have pulled the cup and you use die grinder to clean area where cup goes, how do you avoid contaminants going into the cylinder? Also you said to clean the cylinder. That would be hard to because you have a small opening. Only way would be a small vacuum hose ? I’m fairly new to this kind of stuff so forgive my ignorance. Thanks.

[@HarrisonMcdonnell-w7s]

What tool are you using I can’t find one that expands inside of the cup anywhere just tap in

[@tonycastelli3350]

Awesome video👍🏼

[@Inspironator]

Great info. I wish I had a C7 in my F250! :))

[@AdeptApe]

+Inspironator They are a simple engine but are quite expensive.

[@mzee5533]

awesome

[@NitishKumar-wd9hm]

Munchies

[@80sriceman]

This just happened to my 2002 GMC 6500 with CAT 3126. Truck had a hard time starting, once it did, I noticed the overflow bottle filling up. Waiting for mechanic, hopefully just the injector seals blew.

[@dowingfaith]

Is the c12 the same? Great vid .Keep them coming.

[@Jerzeyguy]

dowingfaith yes.

[@1973riyadh]

very good job and I learn from all your videos. thank you soo much... REGARDS

[@sayokargbo2915]

Prefect & satisfied video,Cat ,,,keep it up

[@michelleguerrero2516]

where can i get that tool

[@vcmedia2970]

hello the 3125 marine engine does it cary a Oring inside the chamber for the injector sleeve cup .need your help here ASAP my coolant is mixing with oil await your reply thanks

[@donmunro144]

On the 3406 these will cause coolant in the oil, as these Don have a common rail fuel system

[@osamah5213]

My friend, can you give us information about hydraulic problems in Caterpillar equipment such as excavators, bulldozers, graders, etc., or direct me to a KZbin channel if you know about it? Thank you very much for everything you provide.

[@amirshaikh2303]

Hi facing same issue in skoda Fabia, what can be the solution

[@Johnwilliams-yi9xc]

just a question after doing a job like this is alright to start it up or is their something special you have to make sure you do before start up?

[@firstname6208]

make sure there is NO liquid on top of the piston before you install the injector. law of physics you cannot compress liquid. the weakest link will give out- bend a rod- lift an injector- blow a head gasket..

[@kerrygleeson4409]

Great work thanks for sharing

[@刘先生-u7b]

it's helpful.

[@nitroman669]

What is the seating compound specifically, brand or type please

[@covid-19ispsychologicalwar10]

Brandon Holley loctite

[@Gandyy5]

Loctite 620 mostly. I’m almost positive CAT will ship that if you order retaining compound from them.

[@bigred1247]

Loctite 620

[@BottleCap-b8i]

I have a cat 3114 engine when accelerate like circle smoke coming from exhaust what is the problem?

[@sahjadaahmad8109]

Our benz tipper water separator filtre lower portion coolant show please resons damage of parts

[@louismallios6780]

Great videos. You are very informative. I am having problem, 3126 oil in diesel fuel. What are you thoughts? I have changed injector o rings?

[@vcmedia2970]

hello the 3125 marine engine does it cary a orange inside the chamber for the injector sleeve cup .need your help here ASAP my coolant is mixing with oil I replace the sleeve but it still leak

[@edwinfuchs3887]

What’s the easiest and best way to plug the injector tip hole to prevent debris from falling into piston? Working on a 3406

[@trubz360]

Thanks for the video. I have to do this to a Detroit 60 series 14 L engine is it pretty much the same process or do I have to remove the cylinder head for that specific engine

[@carmello000jp]

I'm doing mine tomorrow

[@johnberry9669]

Depending the year older truck where not removable replace head unless you got a great local machine shop

[@tjdup3082]

i don't understand how coolent couldn't get into the oil also if the orings were bad?coolent coukd push out up top then into the oiling system?

[@edbemica]

Great, in my case it was coolant in the diesel system, but the same problem. 3126 Engine

[@ronihrke2867]

great videos, I have a CAT C7 in my motor home, I had a complete HEUI pump injectors replaced 6 months ago. Took in for a Preventive Maintenance. Went to pick up check engine, display said ECU low coolant. Coolant full but fuel in coolant, no leaking of coolant though to my knowledge. thoughts?

[@arisali9814]

thanks .good job

[@mdbadalmiah6808]

Thank you sir

[@malachij7026]

I have 97 freightliner century with a 3406E. I just replaced my injector cups and injector rings. Flushed the cooling system, filled with 50/50, crank the engine, turned on my lights and it was running great. Then the engine just stop. Turned off the ignition, turn ignition back on and noticed that the gauges did not cycle. Turn the key to start and the engine fired up just fine, but none of my electrical gauges are working. No wipers, no ac, engine fan running constantly, windows won’t roll down. When I turn on the headlights it kills the engine. Also noticed when I try to roll down the windows it cuts the engine. Please help! Any idea what’s going on?

[@orozcorob69]

Good info! What about when engine oil gets in the fuel tank? Could that be due to bad injector orings or seats? Engine is an isx cm870 tia!

[@eddietorres4005]

Good afternoon, I’m a local mechanic down in Houston TX. I have a 2005 Twin Turbo C15 CAT. I want to know if it’s possible to replace the injector cups without having to remove the heads ? Any information would help. Thanks

[@AdeptApe]

Yes, you can definitely replace the cups without removing the cylinder head, unless the cup is broken in the head.

[@kjkalm2198]

u and your videos are great ,keep going.what causing fuel mixing with oil, and oil mixing with fuel thanx a lot

[@AdeptApe]

+Kjk Alm I've got a video on fuel contamination also known as fuel dilution. It is usually an injector.

[@robburton8690]

Where do you get that style puller

[@aldomack4963]

Great video

[@jairedheinrichs2295]

Thanks for the video my 95 7.3 has coolant in the fuel and it only has it on start up when cold so I'm thinking I will have to replace all the cups

[@PoliticalGangster]

how did ya cups replacement go?

[@michaeldominiquez7253]

What with this cost to fix on a 350 Ford

[@hamadhoucinecaterpillar6164]

Awesome

[@stevosprojects7123]

Do you have to reprogram the injectors I recently replaced the cups thanks to youre video but now it is missing not sure if you have to program them or something

[@josephfeoranz1029]

Hi I have a 1994 3116 and it dumped my entire tank of fuel out of the coolant overflow I can’t find a tool to pull the injector sleeves for the mechanical injectors can you tell me what tool I need? Thank you

[@Natural-Blooded]

Strait to the point, well explained, no long boring additional bullshit.

[@ninotexas]

I just had mine done and it seems there is a little residue or there is more fuel in my tank. Is it possible to have a small amount of fuel residue? They just drained it and refilled. Didn’t flush system

[@jordanalexander2276]

Man I should’ve been a diesel mechanic

[@00Blqze]

Can you please make a video on electrical troubleshooting

[@842Cwalker]

what are the part numbers for the removal and instillation tools? or where can I get them?

[@elperrolos1]

Did you ever find the part number ??

[@workingclass6750]

How do you ensure all the debris is out aside from compressed air?

[@racquishb]

hi what is the name of the removal tool for the cups or where can i find this tool please thanks

[@covid-19ispsychologicalwar10]

racquishb riffraffdiesel makes a tool you can rent

[@bighonkey_alligator]

What is the typical cost for all the cups having cat do the work?

[@PoliticalGangster]

$9999.99

[@bighonkey_alligator]

@@PoliticalGangster wow What an intelligent comment By the way the cost is about 1500 genius

[@PoliticalGangster]

@@bighonkey_alligator ahhh ok, thanks.

[@jaarryifleshblood315]

Do 2 stroke desiels have cups?

[@crushingthepyramid1641]

What causes fuel in the oil? I'm gaining about 1 quart of oil every 25 to 50 miles? BTW all my injectors are new.

[@tavaluslawton9688]

Bad injector orings or damaged injector tip dumping fuel

[@crushingthepyramid1641]

@@tavaluslawton9688 I put all new injectors in the truck because I was having the same problem before I put them in. What else do you think it is? Thanks.

[@tavaluslawton9688]

@@crushingthepyramid1641 did you change the injector cups? I'll be willing to wager that its the source of your problem. Considering new injectors didn't fix it

[@dustinh8952]

How hard is it to remove the spacer under the valve cover for more working room?

[@arthurvilla898]

I have a cat 3406b engine that's leaking water around the spraying nuzzle have any idea of what can that be ? THANKS

[@blackbulletdiesel4742]

On my c15 6nz I got fuel in the coolant in the radiator but I have a lot of pressure in the radiator I open the cap fuel and coolant everywhere is it possible the head is cracked

[@samuelaboli7364]

Probably caused pressure leaking in between the cylinder head, remove for pressure testing to abstain the issue

[@FCM1klk]

Can a bad injector cup cause fuel mixing with oil?

[@onionpeeling5822]

Hard head if you got regen engine then he stop there !! Why ?? Can u pls explain ? It was the best part tho.

[@robertfournier3549]

I have coolant in the primary fuel filter but no fuel at all in the coolant recovery tank. Could anything else possibly be putting coolant in the fuel filter? 1998 C-12. Coincidentally I turned on the faucets for the heater core and one day later I had coolant in the filter.

[@Ecoscienceczar]

I'm getting coolant in my diesel. Will injector cups fix this?

[@thatoneguy7416]

Im doing this job on a c-15 acert right now. Does anyone know the part numbers to the tools that pulls and installs the cups?

[@falarinc5165]

Where do I get the tools from

[@rivierassilvio3690]

HELLO SIR I LIKE U VIDEOS HOW CAN I DONATE TO U

[@nulinetransport12]

Great Video Thanks ! I Think my 3126 might need those done after it overheated,do u recommend to do the injector o rings as well?

[@nulinetransport12]

Thanks i will Do

[@WestSide767-WS4L]

does the c10 injector cup carry o-rings?

[@melvin1276]

Numero de herramientas para extracción del cover injecctor

[@tpcoachfix]

Are these common rail fuel systems? You mentioned that they are non EGR engines and the fuel pressures you spoke of seem kind of low to be common rail systems.

[@AdeptApe]

+tpcoachfix This engine is a HEUI engine and the C15 is a EUI engine.

[@tonyschroeder5881]

So I'm getting some coolent in the cylinder but no compresson inton coolant system could a failed cup be the issue? 3406e 5ek

[@BlakeMerckleTrucking]

Was just quoted 3500 plus tax to do injector cups on my c7 is there something I'm missing I expected cat to be a little more expensive but that sounds crazy high

[@michelreineking8284]

I have a C7 with a 94-1 code. Low fuel pressure. Shows about 4 psi at idle, I've hooked a guage to it and can confirm the low pressure so it's not a sensor problem. Bypassed the truck completely with a jumper line and same thing. Changed the filters and lift pump. No fuel leaking from injectors from what i can tell. I'm surprised the engine even runs on 4 psi. Any idea what may be causing this?

[@1HSYURIDIA]

How do you know the diference when diesel in coolant or oil in coolant ? Mine looks like has some of that but very few little like black points

[@Jeremy-iv9bc]

Smell inside your surge tank. If there is diesel in there you will be able to smell it.