How to Remove a HEUI Pump on a C7, C9, 3126 Caterpillar Engine

join me on this project where I show you step by step how to Remove a HEUI pump on C7 Cat Engine

[@eugeneanderson7984]

Great video thank you for your effort. May the Lord Richly bless you.

[@KITS_Auto_and_Truck_Repair]

@eugeneanderson7984 Thank you!

[@DavidDallas3343]

Thank you so much for posting this video I am going to tackle this tonight as my truck will not start and it is the HEUI pump exactly the same style pump like this thank you for posting the video

[@KITS_Auto_and_Truck_Repair]

David Dallas My Pleasure!!

[@amazedbyyou648]

Thanks Chief very helpful to me as a beginner

[@KITS_Auto_and_Truck_Repair]

Amazed By You My Pleasure!!

[@rickl6697]

Awesome video. Great camera work and explanation. I have a 3126 cat in our RV and I am trying to learn everything I can and this is a great help. Thanks for sharing your knowledge. I hope you do a video about the new cat oil filter to protect the Heui pump. Did you have to replace any injectors after your Heui pump went out? Thanks again. Definately subscribing.

[@KITS_Auto_and_Truck_Repair]

Rick L thank you, I didn't replace the injectors... I will make a video about the oil filter for a HEUI PUMP when I get to do one, hopefully soon

[@benjaminishak6192]

I also have a 2003 Dutch Star with the 3126. I think we have the round top style HEUI pump. I think the only difference for us is the fuel supply line goes directly into the head instead of the secondary filter. I think we only have one fuel filter. My HEUI mounting o-ring is leaking oil so I have to remove the whole pump. Feel free to message me if you want to compare notes engine/chassis notes.

[@rayjay1able]

I was able to follow everything you did thankyou for video.

[@KITS_Auto_and_Truck_Repair]

rayjay My Pleasure!! I'm glad to hear that!!

[@Alcateia244]

Ótimo vídeo você costuma medir pressão de óleo da bomba de transferência?

[@KITS_Auto_and_Truck_Repair]

@Alcateia244 English please!! Thanks

[@Alcateia244]

@@KITS_Auto_and_Truck_Repair Great video, do you usually measure the pressure of the transfer pump and what would be the value at the start?

[@alstreck9817]

Thank you, I also have a RV w/ 3126, information is priceless, GREAT JOB! Noticed the heavy coat, why, is it that the office people are in a heated space, but, techs are left out in the cold shop? some things don't change. Thank you

[@KITS_Auto_and_Truck_Repair]

AL STRECK thank you... and thanks for noticing the heavy coat lol... the heater in the shop takes too long to warm up the shop... but office people have a better one, I also wonder why,,, hahahaha

[@fernado8919]

P

[@richardvaughn-zs9fv]

Thanks for the whole video I have learned a lot about the c7 great video thanks

[@KennethGoodman-cu1zv]

Injectors weren't damaged? Do they get damaged ?

[@KITS_Auto_and_Truck_Repair]

@KennethGoodman-cu1zv on this bus the injectors were fine!

[@shabbawolf4975]

This was very helpful! Thanks so much

[@KITS_Auto_and_Truck_Repair]

Shabba Wolf You're Welcome, I'm glad this video was helpful!

[@ronbown3836]

Those pumps are very easy to take off two bolts 4 fittings in a wire connector it comes.

[@KITS_Auto_and_Truck_Repair]

Ron Bown Yes!

[@yasodhashivnarine8371]

I broke that piece to take that line off is their any way i can still get it off

[@KITS_Auto_and_Truck_Repair]

Yasodha Shivnarine Which line?

[@Mohamad-cu6mc]

Can heawy pump mk the engine smok black and engine start 3 miner of. And if star start 10 sacan and of

[@KITS_Auto_and_Truck_Repair]

Mohamad black smoke is usually caused by defective injectors!

[@coastaldavhawthorne5891]

Good vid. I have a 3126b which is gonna need O rings on injectors or reman injectors. Gonna do the HEUI if I replace the injectors. At 147,000 now. Sometimes I use oil and other times it doesn’t . Crazy

[@KITS_Auto_and_Truck_Repair]

@coastaldavhawthorne5891 Thanks!

[@heavyequipmenttechnician9705]

is tha have any timing marks or thay work simply without timming ?

[@KITS_Auto_and_Truck_Repair]

Heavy equipment technician The HEUI Pump doesn't need to be Timed!

[@heavyequipmenttechnician9705]

@@KITS_Auto_and_Truck_Repair thanks i got a pump out for repair

[@KITS_Auto_and_Truck_Repair]

@@heavyequipmenttechnician9705 My Pleasure!!

[@GabrielMorales-il4sf]

Hello my friend, I do have a quick question. Oance installing Do you have to do the timing? On it doesn't matter?

[@KITS_Auto_and_Truck_Repair]

Gabriel Morales No my friend, this HEUI Pump is not timed!

[@pedroaldea9297]

Q medida es el tapón del costado de cañería de alta presio para poder medir la presion

[@KITS_Auto_and_Truck_Repair]

Pedro Aldea English THANKS!

[@thetruth8958]

I don't know how to Diagnostics if HEUI is bad?

[@KITS_Auto_and_Truck_Repair]

the truth I have a video coming up, that covers all the tests you can do to determine if your HEUI Pump is defective stay tunned and I'm sure you'll enjoy it

[@jorgeherrera2275]

Hello sir! Does the high pressure supply line have any O rings or just the ones that sit on the connector? Thanks in advance

[@KITS_Auto_and_Truck_Repair]

@jorgeherrera2275 there is an Oring on the fitting

[@MitchsGold]

Nicely done. I am about to do one on my F650. I have the new oil hose with a filter. Too bad the pressure regulator valve isn't available separately.

[@KITS_Auto_and_Truck_Repair]

Mitch Lopina thanks, and good luck with your project...

[@waltrogers8529]

Great job. Very detailed. Thank you.

[@KITS_Auto_and_Truck_Repair]

@waltrogers8529 My Pleasure!

[@Allenboynow1]

Spn164 code engine no start do I need a New Heui pump?

[@KITS_Auto_and_Truck_Repair]

@Allenboynow1 Check your HEUI Pressure

[@rafalkuran]

Hello. Could you give me a help? I need to know what is the size one of the 4 bolts whitch keep transfer pump and heui pump together. I mean what is the lenght and thread of it

[@KITS_Auto_and_Truck_Repair]

Rafa Kuran I don't separate them, I buy the HEUI Pump with the transfers pump on it!!

[@rafalkuran]

@@KITS_Auto_and_Truck_Repair I have one more question to You. I am looking for good parts shop or a diler of International-Navistar engines like DT466 and DT 566. I am from Poland in Europe, and it is a problem to find good parts in good price, and find parts at all.

[@KITS_Auto_and_Truck_Repair]

@@rafalkuran yeah! I bet it's really hard to find parts for these USA Trucks over there, I don't know a good parts store there, can you order parts online?

[@rafalkuran]

@@KITS_Auto_and_Truck_Repair yes I can order online, also I have a friend who order "hotrods" parts from US and he could be helpfull. Mayby You can recommend good store with oryginal parts and substitutes parts in US.

[@KITS_Auto_and_Truck_Repair]

@@rafalkuran check out Fleet pride or NAPA!!

[@obduliobarrios4964]

Good job c7 acert is same

[@obduliobarrios4964]

We're l can fine that pump

[@KITS_Auto_and_Truck_Repair]

@obduliobarrios4964 Thanks!

[@KITS_Auto_and_Truck_Repair]

@obduliobarrios4964 I got Mine from the CAT Dealer

[@johnjackman1720]

I have a series 60 12.7l detroit. I changed the fuel pump and I'm not sure if I put the in and out lines on correctly. Great video I just brought a box truck with a c7 huey problem

[@KITS_Auto_and_Truck_Repair]

John jackman My Pleasure!!

[@eulessnemesis]

Hello! Thanks for the teach, I thing my truck problems it’s that What is the symptoms when you have to change heui pump?

[@KITS_Auto_and_Truck_Repair]

eulessnemesis My Pleasure!! the symptoms are crank no start, low power or long crank, check HEUI Pump output pressure while cranking it should be between 400 and 800 Psi..

[@petermuzamhindo6190]

View water pump

[@KITS_Auto_and_Truck_Repair]

Peter Muzamhindo That's the HEUIP Pump!

[@rooplalthakur540]

how' much valav clearance This engine

[@leandromendoza4960]

Great 😊

[@KITS_Auto_and_Truck_Repair]

leandro mendoza Thank you!!

[@robertdinero6383]

in couple of seconds look back and oops forgot this 😁😁

[@KITS_Auto_and_Truck_Repair]

robert Dinero lol!

[@eriksamayoa5639]

My c7 I didn't see a front seal

[@KITS_Auto_and_Truck_Repair]

Erik Samayoa you should make sure the seal is there!!

[@eriksamayoa5639]

@@KITS_Auto_and_Truck_Repair you good changing parts 👍👍👍

[@KITS_Auto_and_Truck_Repair]

@@eriksamayoa5639 Thanks!!

[@haiderk3246]

🙏

[@KITS_Auto_and_Truck_Repair]

Haider K My Pleasure!

[@tomdaly5128]

Do you have any info on the filter kit from cat to protect the heui pump? part number? Thanks, and great videos! tom

[@KITS_Auto_and_Truck_Repair]

Tom Daly I don't have the part number for that kit, I remember doing it on one of our school buses 2 years ego. and I got the kit on ebay The hose with the little filter that protects the HEUI Pump, if I find it I will let you know

[@tomdaly5128]

@@KITS_Auto_and_Truck_Repair thanks. I know there is an aftermarket kit available, but you mentioned a kit from cat. Did you mean cat sold it?

[@KITS_Auto_and_Truck_Repair]

@@tomdaly5128 it was a aftermarket kit!!

[@vsheavy2792]

just subscribed to your channel.need more heui system diagnostic.keep it up.

[@KITS_Auto_and_Truck_Repair]

Vshea Vy thank you... there are more videos on the way, stay tuned!!!

[@vsheavy2792]

@@KITS_Auto_and_Truck_Repair That's great.keep them coming.

[@sesojayson9009]

Before remove the pump no need timing?

[@KITS_Auto_and_Truck_Repair]

Seso Jayson No, The HEUI Pump is not Timed!!

[@Mikkeyboyy]

i have the round huei in 3126e catone im am getting oil in my fuel tanks losing lots of oil no smoke no leaks on ground but its going into fuel tanks any help would be appreciated

[@KITS_Auto_and_Truck_Repair]

Mikkeyboyy sounds like your injector seals are leaking... is it hard to start?

[@Mikkeyboyy]

no easy to start runs good just oil is going rapidly when on hwy

[@KITS_Auto_and_Truck_Repair]

@@Mikkeyboyy yes, oil in the fuel is a sign of some type of internal leak in the cylinder head, usually around injector seals and that would cause a hard start since it will take longer to build oil pressure in the pressure injection system... you should have a pro mechanic look at for you... Good Luck!!!

[@Mikkeyboyy]

replaced all injectors seems to have stopped oil loss I'm am still monitoring thank you

[@KITS_Auto_and_Truck_Repair]

@@Mikkeyboyy you're welcome, I'm glad to hear that the leak stopped!!!

[@sumonmostakin9556]

Hi friend i have 1 problem in this c7 engine ..my engine starting too long salve after start. What's problem this engine. Please talk me .

[@KITS_Auto_and_Truck_Repair]

Sumon Mostakin do you mean your engine is taking to long to start? check your high pressure oil system!!

[@sumonmostakin9556]

@@KITS_Auto_and_Truck_Repair how much pressure this heui pump

[@sumonmostakin9556]

@@KITS_Auto_and_Truck_Repair where are heui pump filter .i don't know .can u talk me please

[@KITS_Auto_and_Truck_Repair]

@@sumonmostakin9556 about 600PSI at while cranking and over 800 at idle

[@KITS_Auto_and_Truck_Repair]

@@sumonmostakin9556 make sure your engine has the correct amount of oil