good morning friends i am new to this forum i am from venezuela i have a toyota land cruiser fj 62 i want to make the adaptation of a cummins 4bt 3.9L 8V engine which seems to me an excellent engine here it comes in some Ford trucks I would like to know what modifications I have to make the engine to adapt it to my truck so I can increase its rpm and CV more thanks friends

 

The 4bt was manufactured with several fuel injection pumps. The 4bt is manufactured with no method of attaching a transmission, an adapter plate is needed to connect the 4bt engine to a transmission bell housing.

I have no knowledge of what injection pump and transmission/bellhousing the Venezuelan Ford truck has.

Consider using an engine and transmission from a Venezuelan Ford truck. That way, you would not be searching for adapters to attach a random transmission to the 4bt engine. In North America (USA and Canada), we have options that are getting harder to find - In your case, these options also would be expensive to ship and possibly difficult to import into your country.

The 1986 Ford F150 (see my signature below) - My 4bt came out of a 1986 Ford E350 (bread van) and had an adapter to a common Ford small block V-8 bellhousing pattern. I was able to bolt a 5 -speed overdrive transmission to it.

Russ

 

mine also has that bell for me it would not be difficult to import it or make it in iron myself my intrigue is in what is the limitation and what modifications should be made when mounting it in a common truck he brought a rotary injection pump I would like to know what it is what I must modify to be able to make the changes at more rpm the box that I am going to adapt is very similar to the relationship to the nv4500 but it is a 5-speed manual toyota that brings the fj-80 Land Cruiser friend thanks for answering my questions very nice of you

 

We have to start with some information.

Rotary pump is a partial answer - they come in different types VE (most common in trucks), CAV and probably a couple that I do not remember - In general, the governor (engine speed regulator mechanism in the injection pump) is modified by changing an internal spring.

On the transmission, I can not help. I have only done this one 4bt engine swap and it was many years ago

 

Member GLTHFJ60 has swapped a 4BT into a FJ60, he should be able to answer some of your questions.

 

in a few days the engine I buy will arrive and I will be sending you the photos and the model of the engine and injection pump friend

 

Send us the engine specifics, and we can help you figure out how to increase the RPM it produces. Give us a picture of the engine data plate.

As for the truck, did your 62 have a 3fe or a 3f? If you have a factory cable throttle, you can connect the cable to the VE injection pump throttle and that's pretty easy.

Which transmission? H150/H151F?

Ask questions and I can help.

 

good morning friend thanks for answering the transmission that I have is an H151F the engine arrives in 3 days and I will send the photos of the plate my truck is 3f with carburetor it has the short cable I would like to know which radiator I can use with the 4bt and what modifications should I do to couple the transmission with the engine

 

The stock 3f radiator will cool the engine just fine.

To go above 3000rpm you need to put better valve springs (60# (pound) valve springs) and change the injection pump governor.

As for mounting the H151f, there is no one in the world I'm aware of that has mounted a 4BT to a H151f. You would need to machine a replacement flywheel housing to allow the H151f and its bellhousing to bolt to the engine, then figure out a custom flywheel to allow you to use the H151f 300mm clutch.

As for the intercooler, use as big of an intercooler you can fit in the truck. I used an intercooler out of a ford 6.0 diesel, but many modifications were required.

 

friend and where can I buy the valve springs and which one do you recommend talking about the turbo which is the most suitable model to use on the road and off the road that gives me a good push as well as the injectors

 

Lots of places:

Cummins Cummins 3916691 4bt HD Performance Valve Spring Kit

Cummins 3916691 4bt HD Performance Valve Spring Kit. Dieseltuff is your Cummins 4BT & 6BT parts supplier. Best prices and free shipping over $100.00

www.dieseltuff.com

Holset HX30 will work fine.

 

Hello friends, here I attach some photos of what was the work of adapting the cummins 4bt to my toyota fj62 with transmission toyota h151 f

 

 

I attach some photos

 

Photos

 

Photos

 

Photos

 

LOVE it! Nice work. This is the first ever (to my knowledge) instance of someone installing a H151F on a Cummins 4BT.

Which clutch is that? Which bellhousing is that?

 

Friend, how are you good afternoon? I have a problem with my 4bt, it has a turbo hx30w, it had bad injectors and it was leaking a lot of smoke, I bought the new injectors and I had the injection pump serviced, then it was generating very little impulse, it was slow it is given more fuel it has a rotary pump Bosch ve4 it is consuming me 1 liter of fuel every 6 km in the city and on the highway it goes 10 km per liter of fuel but I want the impulse to be greater before with the broken injectors when accelerating fully I accelerated super fast but failed

 

Check with Dakota Digital. They have alternator W signal to tachometer interface units. You may need a remote tachometer that reads off an engine pulley to dial it in. Here's a link to their website. Units cost $99.95.

 

Thank you very much friend, I am going to start reviewing what I have to ask to start my tachometer

 

Sounds like you want the fueling rate needs to be higher. Research VE pump tuning, particularly the full power screw and the smoke screw.

 

Good morning friend I hope you are very well I would like you to help me with some problems that have presented my engine has damaged me twice the turbo hx30w when traveling more than 5,000 km begins to filter oil and loses a lot of momentum I would like you to help me and closed Much more the exhaust hatch thinking that the turbo is going over revolutions but I do not change anything it is not generating more than 13psi increase the fuel and it does not improve I would like to know how many degrees the pump should be for its operation, the engine has lost a lot of force with this failure

 

Looking forward to the end result of your work Camilo.

 

Member Eggman probably can help you on the amount of timing for a VE pump. He is running one at around 300 HP with twin turbos. You mentioned you changed injectors. Do they have the correct pop pressure for a VE pump? If they are wrong your timing could be very retarded and performance very poor. If your boost is peaking at 13 PSI under load there is a problem. With proper fuel an HX30W can easily do 30 PSI or a bit more. Now I said under load. In normal driving without much load 6-8 PSI might be all you'd see. Have you done a compression test on the engine? Bad injectors could have caused piston damage. Also, check for air leaks in your turbo plumbing. If the turbo is leaking oil it could be over speeding.

 

Hello friend, thanks for your help, I tell you that I do not know if the pop pressure is correct in the injectors, I bought them original truck
I check for leaks in the system I load it with 30 psi and there are no leaks
When you tell me that it accelerates too much, it is that the turbo is being damaged by exceeding the rpm of the turbo, right?
I would like you to help me with the data of how much advance the pump should have and the opening pressure of the injectors
I am already worried, two turbos have already been damaged in the same way and oil begins to leak

 

[QUOTE = "Camilo barros fj62, publicación: 1073687, miembro: 132866"]
Hola amigo, gracias por tu ayuda, te digo que no se si la presión pop es la correcta en los inyectores, los compré camioneta original
Reviso si hay fugas en el sistema, lo cargo con 30 psi y no hay fugas
Cuando me dices que acelera demasiado, es que el turbo se está dañando al superar las rpm del turbo, ¿no?
Me gustaría que me ayudaras con los datos de cuanto avance debe tener la bomba y la presión de apertura de los inyectores.
Ya estoy preocupado, ya se han estropeado dos turbos de la misma forma y empieza a gotear aceite
[/CITA]
eggman918

 

Yes, the over speeding is something that can happen when there is an air leak, especially if it occurs suddenly like when a hose should blow off. Another possible issue could be a restriction in your air intake. That could cause pressure on the oil seals if your air filter is too restrictive. Are these turbos genuine Holset units? The super cheap copies on the market are not of the same quality. Has the injection pump been off the engine recently? If so, it may be possible that the drive gear is a notch out of alignment with the cam gear. That also could cause retarded timing. Not sure how to verify the injector pop pressure unless you remove them. Pop pressure is normally stamped on the injector body. A VE pump would be 245 bar, You might not be able to read that on one without pulling it. If they should be stamped 260 bar then they are not correct for that injection pump. The other option would be take them to a pump shop and have them tested. The cost for that is usually very small.

 

hello friend I just disassembled the injectors and they have 260 bar stamped all 4 are the same
Now I had 2 that are damaged, they are very old from another engine and say 145 bar but the fuel inlet thread is thinner in diameter than the ones I have

 

Set up as you are now when making 13 psi boost what are your EGT's and what are you seeing come out of the exhaust pipe?
Also is the waste gate set at the same point as it was on the previous turbo?
Lets start there and see what you have as these are the simplest and easiest to fix, if they are where they should be we can go a bit deeper.
One other thought when your old turbo failed did it come apart internally? if it did you could well have debris in the hot side of your inter cooler.

 

With full throttle and 2700 rpm, the maximum boost it gives is 13 psi I still have no way to measure the EGT through the exhaust pipe, something black smoke comes out but only when pressing the accelerator then it stops releasing black smoke

I closed the waste gate much more than with the previous turbo

Does the timing of the pump have something to do with it being too early or too late on the slide? In the gears it is in the points as indicated in the cummins manual it turns on perfectly the previous turbo generated noises but did not destroy the turbines would have to disassemble the intercooler to check a possible obstruction how many degrees should the injection pump take forward or backward thank you for responding

 

[QUOTE = "char1355, publicación: 1073695, miembro: 14640"]
Yes, the over speeding is something that can happen when there is an air leak, especially if it occurs suddenly like when a hose should blow off. Another possible issue could be a restriction in your air intake. That could cause pressure on the oil seals if your air filter is too restrictive. Are these turbos genuine Holset units? The super cheap copies on the market are not of the same quality. Has the injection pump been off the engine recently? If so, it may be possible that the drive gear is a notch out of alignment with the cam gear. That also could cause retarded timing. Not sure how to verify the injector pop pressure unless you remove them. Pop pressure is normally stamped on the injector body. A VE pump would be 245 bar, You might not be able to read that on one without pulling it. If they should be stamped 260 bar then they are not correct for that injection pump. The other option would be take them to a pump shop and have them tested. The cost for that is usually very small.
[/ CITA]

I checked for leaks in the system I added 30 psi and there were no leaks also the e tested without an air filter and it does not improve this second turbo is original the pump was out of the engine when I bought it that I disassemble everything except the head to change the gaskets and then I installed it at that time the engine was very good the response was excellent then I changed the injectors and some problems started then I had to remove the pump but without removing the main gear to take it to review where they changed a series of internal parts later From that I improve considerably what I would like to review is how much progress it should have to see if I have it too early or late next week I will take it with the injectors to another workshop to check it but I have many doubts regarding the advance because I increase the fuel and the smoke screw and it doesn't improve anything

 

Look at this video first it shows the process on a VW but it's the same for the Cummins.. This one is in english but you should be able to find something .
this is the search I did setting the ve pumps timing with dial indicator at DuckDuckGo

https://www.amazon.com/EWK-Indicator-Diesel-Engine-Adapter/dp/B00O1QTSF2/ref=dp_prsubs_1?pd_rd_i=B00O1QTSF2&psc=1

Do you know the CPL of youe 4BT? that will give you the pump plunger lift you want to set it to.

 

Look at this video first it shows the process on a VW but it's the same for the Cummins.. This one is in english but you should be able to find something .
this is the search I did setting the ve pumps timing with dial indicator at DuckDuckGo

https://www.amazon.com/EWK-Indicator-Diesel-Engine-Adapter/dp/B00O1QTSF2/ref=dp_prsubs_1?pd_rd_i=B00O1QTSF2&psc=1

Do you know the CPL of youe 4BT? that will give you the pump plunger lift you want to set it to.

Hello friend, I checked with another engine and the time was fine, you know that I added more fuel and there were no changes, no smoke comes out of the exhaust, check the injectors and they have 260 bar stamped, I also had some old injectors here but the diameter of the fuel inlet thread It is less than the ones I had mounted

 

[QUOTE = "Camilo barros fj62, publicación: 1073753, miembro: 132866"]
hola amigo acabo de desmontar los inyectores y tienen 260 barras estampadas las 4 son iguales
Ahora tengo 2 que están dañados, son muy viejos de otro motor y dicen 145 bar pero la rosca de entrada de combustible es más delgada en diámetro que las que tengo
[/CITA]
lo siento, los demás dicen que es 245 bar

 

[QUOTE = "Camilo barros fj62, publicación: 1073753, miembro: 132866"]
hola amigo acabo de desmontar los inyectores y tienen 260 barras estampadas las 4 son iguales
Ahora tengo 2 que están dañados, son muy viejos de otro motor y dicen 145 bar pero la rosca de entrada de combustible es más delgada en diámetro que las que tengo
[/CITA]
lo siento, los demás dicen que es 245 bar

sorry the others say it's 245 bar

hello friend I just disassembled the injectors and they have 260 bar stamped all 4 are the same
Now I had 2 that are damaged, they are very old from another engine and say 145 bar but the fuel inlet thread is thinner in diameter than the ones I have

sorry the others say it's 245 bar

 

I'm a CA FJ60 owner for ~ 4 years so I can speak to that at least. A stock FJ60 will have the carb'ed 2F engine, a 4 speed manual, and a 2nd stick for the transfer case. Everything is manual - hubs, gears, windows, locks, seats, Tutuapp 9Apps Showbox etc.

 

I'm a CA FJ60 owner for ~ 4 years so I can speak to that at least. A stock FJ60 will have the carb'ed 2F engine, a 4 speed manual, and a 2nd stick for the transfer case. Everything is manual - hubs, gears, windows, locks, seats, etc.

My truck is model fj-62 in my country it left in 1992 it brought from the factory 3f motor with 5 speed gearbox and single stick transfer brought electric glasses I added its original fj62 refrigerator console and many extras already switch to cummins 4bt engine and fj-80 box and fj-80 transfers and arb blockers on both of your differentials