How much could I expect to pay for a 4JB1-T diesel engine with 4x4 transmission? Any chance I could get the package for $800-$1,000 not including shipping? I am still awaiting on a 1986 Trooper that is factory diesel to get shipped to my property. Bought it off EbayMotors awhile back and has no engine, trans or driveshafts. What I planned to do was put in a C223 with only 98,000 miles on it and the 5-speed 4WD diesel trans bolted up to that. Wasn't interested in going for the C223-T, as a used one might have engine problems in less than 50,000 miles. Want to try to go with the reliable, long lasting durability of the C223, but now I'm rethinking whether I should upgrade to the best with a 4JB1-T diesel. And the HP and torque numbers for that baby sound real good for a 4x4 Trooper I plan to lift and put on 4 brand new BF Goodrich All Terrain 33" tires on. Thanks for any reply.

Salvy

Well, I paid about double your budget unfortunately. Mine was $2200 shipped, but it was in excellent shape (ok, I've yet to start it, but it sure looks clean!). Four-wheel-drive transmission included. The same outfit can get the C223T w/ 4x4 gearbox for about $1500. Shop around, though, and post if you can get a better deal -- this was the best I found, straight from Japan.

I have heard the frame on the 86 is different, so you may need to perform some modifications to get the 2.8TD installed if you go that route.

And as for the conversion, I haven't had much free time to get to the truck these past 2 weeks - started a new job and had some vacation plans over the holiday. I do plan on getting the wiring and fuel system squared away this weekend, though... we shall see. I did get my Helm, Inc. Electrical Troubleshooting Manual, which looks to be one hell of a resource and should come in very handy.

I DOUBT VERY SERIOULSY YOU WILL FIND THE 4J SERIES ENG ANYWHERE NEAR YOUR BUDGET AMOUNT PROB, BE CLOSER TO 2500 -3000 FOR A COMPLETE PACKAGE , THEY ARE RARE IN THE U.S, ACY76 GOT A PRETTY GOOD DEAL ON HIS I HAVE SEEN C223T WITH THE TRANS & LOW MILES AND ENG IN EXCELLENT SHAPE GO FOR OVER 2000, THEY ARE XP ENGS TO REBUILD LIKE ANY OTHER DSL , AND YES THE 4J MTR SHOULD FIT YOUR CHASSIS , THE FRT ENG MTS ARE IN THE SAME SPOT(FRAME PADS ) THE REAR WILL HAVE TO BE MODIFIED BECAUSE THE MUA TRANS IS LARGER IN DIA AND LONGER BY A LITTLE BIT ,, ALSO THE REAR CROSSMEMBER ON THE 86 IS NOT REMOVABLE WHICH MEANS THE TRANS WILL HAVE TO GO IN FIRST AND THEN THE ENG DROPPED IN AND HOOKED UP, YOU SHOULD ACTUALLY HAVE A BIT MORE CLEARENCE IN AND AROUND THE FRONT AXLE FOR THE OIL PAN AND CRANKCASE ASSY AS THE 86 HAS A MUCH SMALLER FRT DIFF HOUSING THAN THE LATER TRUCKS , HTH JERRY

Hello, I just picked up a 86 trooper diesel with 150K miles for my 15yo son. The engine smokes some so I am looking for the best option to rebuild or replace. Is the c223t proned to break down or is it a suitable engine if you don't need the speed/power? Can anyone steer me in the right direction for parts or replacement engine? Thanx

Things continue along...

Can anyone give me a hand with the vacuum system? Specifically, I am wondering how the pump connects to, well - everything else. I've got cruise control and HVAC that need vacuum, as well as the brake booster and a fast idle valve. Any diagrams available from the C223 that would help? Are there any restrictors or anything in the system, or do I just start teeing things off the pump?

Thanks for any insight..

Does anyone know the HP and TQ values for the 2.4 4FG1T?

I wonder what the parts availability would be on the various diesel engines, particularly those that were never common in the US?

No doubt, you know the vacuum pump is attached to the back of the generator (alternator) in front of the turbo on the passenger side. Normally, the fat metal pipe outlet from the pump (pointing toward bottom passenger side of the windscreen) is the outlet for the brake booster. Where I'm from, that's less than a foot away because your passenger side is our driver side and the brake booster is located over there on the opposit side. You'll have to rig something to get over to your brake booster on the far side. The other smaller outlet goes over toward the fuel pump. The vacuum hose goes to the vacuum switching valve, which is connected up to the fast idle actuator, the round diaphram-like thingie on the side of the fuel pump.

It's been a while for me, and the memory isn't what it once was.

If possible, you want to try and source diagrams and manuals from continental Europe. That model Trooper was sold there with the 4JB1-T as standard, and in the left hand drive configeration you have in the USA. The model you are looking for is the UBS55. UBS17's are the 2.6 gasoline models of that era.

As an aside, I'd recommend sourcing a timing belt from anywhere the 4JB1-T was sold. Ask your Australian friend to get one for you and have him send it over with the hood scoop, if they aren't available in the USA. Change it out and count 100,000kms from that time forward. You have no idea how old the timing belt in there now is...and you DON'T want to break a timing belt in a diesel engine.

--Bighorn--

Thanks Mr. B., that helps to confirm what I've been guessing. I had not noticed until a few days ago that there were two outlest, one large and one small, from the pump.

I am planning on routing the large outlet to the booster, using most of the molded rubber line that the gas engine used, as well as adding some of my own to make up for the extra length needed. The small outlet will run to a tee, which will feed the HVAC box from one side and the vac. switching valve from the gas engine (one of them, anyway - I'll have to see which is most appropriate. I think I just need one that does on/off from the AC signal) to operate the high idle solenoid, which is only used for the AC as far as I can tell. At least that's all I plan on using it for, as I have no other triggers for it.

The rest of the vac. system used on the EGR and quick warm-up hardware will have to remain disconnected, at least until I can get my hands on the controller boxes, switches and valves needed to run them.

acy76
For all that is may matter, the S10 came with a separate vacuum pump. It also uses a regular GM alternator, y'know, the cheap kind.
If it makes it any easier for you, this pump doesn't need a oil feed or return.
I don't know if it is still available, my best guess is it is.

Keep us posted on the project. Many of us read your posts, we just don't respond.

<img src="/forums/images/graemlins/cheers.gif" alt="" />

Thanks very much for the support. Even though it would still be somewhat helpful if I was just talking to myself, just to get ideas together, the number of thread views tells me someone is reading everything ... <img src="/forums/images/graemlins/smile.gif" alt="" />

I (and others I am sure) would appreciate any info you can provide on that vacuum pump. Even though I plan on using the stock unit for now, if anything should fail it is always good to know about available alternatives, especially when dealing with custom vehicles built from rare parts.

Now -- on to another question. This one is for those who understand the QOS system.

As you all may know (have I mentioned this?), I plan on using the glow plug system from an 86 Troooper diesel. I bought what amounted to an entire wiring harness and all relays etc. - even the entire dashboard! - from a donor '86 truck. I believe I have almost all the pieces to make it work, with a possible exception: the 'sensing resistor'. Posted on my blog site (BLOG) are wiring diagrams from the 86 diesel manual and the 4JB1-T manual. They are identical, as far as I can tell, regarding the glow system (which is why I decided to adapt the '86).

The question: can anyone tell me what the 'sensing resistor' is? I've got all the other pieces, and am ready to connect the main power wire to the bar on the engine that supplies the plugs, but I've got a red and green wire left over coming from the controller that are supposed to go to this resistor. Does it go inline, between the plug bar and the main power feed from the relays?

Any insight, as usual, is much appreciated.

Ok, well I can't seem to get the images uploaded yet. I'll keep trying, so check back if need be...