Topic: Japanese Diesels

[Jeffy]

So anyone up on diesels?  I'm thinking ig I ever get around to swapping engines I'm going with an oil burner.  Seems like there are a lot less problems with registering it then with a gas.

I'm thinking about running a turbo diesel that doesn't use a PCM might be a good idea.  This would make the engine a lot more reliable.  Although one that has a stand alone PCM would work also.    I'm thinking Toyota might be a good place to start but I'm not up on diesels just yet.  I've seen mentioning of a 2LIIT that many swap in place of their 22R.  I also heard about a 1KZ-T, 1KZ-TE, 1KD-FTV, etc.

$4700 gets you a half cut with everything necessary I believe.  Well most of it anyway.  Transmission, transfer case, etc...

[Enjoi]

if i rember correctly when doing a little research theres a 3.9L 4bt cummin that is completly mechanical, ive tried to find more info about it, but i got lazy.

[Jeffy]

if i rember correctly when doing a little research theres a 3.9L 4bt cummin that is completly mechanical, ive tried to find more info about it, but i got lazy.

Problem with the 4BT is that it's HEAVY and HUGE.

[jagular7]

I've been weighing the thought of a diesel, but haven't really committed myself to it as a simple v6 gas would provide a much better power-to-weight ratio.

However, there are companies that build diesel tow vehicles for around mil bases. Harlan Corporation http://www.harlan-corp.com is one and is local to me. They have diesels pushing the same stock 4cyl hp as our Jeeps, but the torque is over 200 ft-lbs!!! These diesels also connect to the Ford C6 trans. I'm not sure if the trans would correlate to a small-block version or the big-block version. If the small-block, then a C4 would also adapt. Then a C4 is much smaller in length than the C6, a Dana20 t-case is a bolt on, dual cases are options, dual t-case shifters as well as gears themselves. Plus Ford Dana20 cases are driver's side drop.

[Jeffy]

Well, one of the reason I'd want to go diesel is because from what I understand, emissions are non-existant in CA.  SO basically you go to DMV and dight some paperwork that say's you've changed over to a diesel and that's it.  If that's the case then it's 1000x easier then getting a gas engine swapped in.

One of the things about the old 4.2L was that it had low HP, around 116, but it's torque was into the mid 200's.  If I remember right the Renault/Jeep engine was 2.5L with 107hp and 235ft-lbs with a turbo.  Those engines are a bit scarce though.  This is why I'm wondering about the Toyota engine.  They are used all over the world and can be bought in the US.  You can also order parts from Toyota which gives it a bit of a dealer network.

Here's a quote from another forum which gives me hope;

I've done two myself, and know of a half dozen others in CA. The fact is that you do NOT have to go to the smog referee. If you do that, you are opening a can of worms. All you have to do is go to the Calif DMV with the truck, fill out the form "Statement of Facts", and check the box "Change of Motive Power". Then the DMV clerk comes out to verify that you really put a Diesel in there, and not a Cadillac 8.2 400HP Gas motor, and you go on your way with a new registration as a Diesel! NOW BEWARE that if you get a jerk at the window, they may try to give you a hassle. Just leave and go to another DMV.

[Enjoi]

wow jeffy, never new that, hm that changes things alot, atleast involving engine changes.

Also anyword on converting those diesels into biodeisel? being able to offroad and not pay much for gas sound pretty good.

[Jeffy]

wow jeffy, never new that, hm that changes things alot, atleast involving engine changes.

Also anyword on converting those diesels into biodeisel? being able to offroad and not pay much for gas sound pretty good.

I don't think you really need to do much to run bio.  Filter the crud out, thin it a bit and maybe run a pre-heater.  I've heard people go without doing anything, too.  I'm not expert by no means.

[kenny kustom]

international 2.8hs  is a very common swap over in the land rover community.

[Jeffy]

international 2.8hs  is a very common swap over in the land rover community.

Problem is that engine isn't very common in the states.  At least with the Toyota, you can order parts from a US Dealer or a whole or parts from an importer.  Might be able to get parts from a US distributor though.  Still, lots of fabication.  The Toyota would come as a half-cut.

I'm still poking around and looking at the options available though.  I might just keep the 2.5L and live with it.

[superman1456]

go with the commins its a grate engin ive been workin on the 5.9 12 valves and the 24 valves for years now they are asom and make insane power. the power that the engin will put out will make up for it being hevey

[jagular7]

The Suplus Center has a 4.2l (258 cuin) Perkins diesel, model 1004.42. It has 86hp and 207 ft-lbs torque!!!  http://www.surpluscenter.com/item.asp?&catname=&qty=1&item=28-1509

In comparison, I think my 2.5l (150 cuin) 4cyl has only 86 hp now and not even close to the 200 ft-lb mark for torque. Not sure if this Perkins engine would support a C6 like the Harlen Corp tow tractor can.

[6099]

Can you get the mitsubishi 2.5L 4D56T Turbo diesel intercooler in the states? It has a driver side T case output to line up with the front diff. About 200Nm of torque between 2 and 2.5k rpm.
64kw at 4000rpm.

I think the older 4d56 does not have a PCM.

Alternatively, the Mitsubishi 2.8L 4M40 TD, better power and torque.

From what I've seen of engines/trannies lying around the workshop, the 2LT could possibly bolt up to the AX5 since it's basically the same Aisin gearbox behind the 2LT (uses the same synchro too). The spline count may be different.

2LT uses old style manual injection, no PCM. This I know for sure.

[keithert]

A somewhat common swap for a Tracker/Sidekick is a VW diesel.  There is a company that makes all the part for the swap.  Might not have enough power for a TJ though.

[wrangler387]

find out if you forsure don't have to deal with emissions with a diesel, i dont see any reason to switch to one in a jeep otherwise.

[Jeffy]

From my understandings, if there was a diesel option then it's fairly straight forward.  What I'm not sure about is if that includes vehicle models that were available outside of the US.  A friend of mine who took a SMOG Certification said he only knew if there was a diesel option, it would be ok.  Although the Diesel's that the Toyota guy's are doing weren't available in the US.  So that would make me assume, the smaller DMV's are glossing over the books and transferring the data anyway.  I'm thinking it's a YMMV.

In any case, a small diesel would be better then going with a bigger gas engine.  Better mileage, a lot more torque and you'd have the option to run bio if you were inclined to.  It won't be a speed demon but it would have a lot more pep then the gas 4banger.  Having one that doesn't require a computer would be a bit advantage.  It would mean no electricals to worry about.  Water fording would only require a tall intake and maybe an exhaust.  In the event you wanted to travel to say Baja or Central America, it would make for a reliable package.  Not to mention not having to be smogged in California.