I've been a diesel fan for many years. I originally bought my present CJ 8, AND a GM diesel V-8, expecting to install it to replace the smog device ridden '6'. I found out to my chagrin that CA smog laws would not permit me to do this. It'swhat they call, "out of class", which means any engine that was only
I've been a diesel fan for many years. I originally bought my present CJ 8, AND a GM diesel V-8, expecting to install it to replace the smog device ridden '6'. I found out to my chagrin that CA smog laws would not permit me (or you) to do this. Besides the legal issues here's my take:
1. Most diesel engines with ENOUGH power for your Jeep are too heavy for the frame, or too wide, or too long.
2. If you can get around the smog laws, a 6 cyl. Perkins would be good. Also, a 3.9L Izusu Turbo , 120 hp, (at least the one captive for GM version) is said to bolt right up to a SM-420 or SM-465. I have a post somewhere of a Canadian Jeeper who installed the Izusu and is ecstatic about it.
[Rob Mullen wrote: I have found what I believe to be the ULTIMATE diesel motor for swapping
into formerly gas vehicles. It's a 3.9l Isuzu turbo diesel that makes
120hp. It's used in those "cab-over" 3(?) ton trucks which I beleive are
sold both as Isuzus (don't know the model number) and as GM 3500s. I
recently saw one in a Land Cruiser and it's a VERY clean conversion. A
factory Isuzu bellhousing is available that will mate to a Chev SM420. All
you'd have to do is get an SM420 (7:1 first gear--should crawl respectably
and either an adapter that would go between your transfer case (Dana 20,
is it? I'm not real good with Jeep stuff) and the SM420 OR get an SM420 and
a Chev-application transfer case that has the driveshaft outputs in the
right spot for your Jeep.]
3. Everywhere in the world, except the USA, uses diesel 4x4's as a matter of course. If you could get your hands on a foriegn job and have it imported (?).
4. I drove a 1980 IH Scout Traveller, 3.3L Nissan Turbo Diesel about 100K and loved it. It only made 101HP , but boy the torque with that 80 lb. flywheel was monumental. Since diesels are all fuel injection, you erase one of the snags of carbed gas engines.
5. One of the hidden troubles with Diesels is vibration. I have owned a '79 Cadillac diesel Sevile, and it about shook the car apart. I've also owned Benz 220D, Peugeot 505S T. D., VW Dasher diesel, with varying success. The Peugeot was my clear favorite.
6. My vote is for the 3.9L Izusu Turbo Diesel. Right size, right power, right MPG, monumental torque at 400 rpm, works upside down, sideways, straight down, straight up, not too complex to install, lasts a LONG time.
I still have a thing for diesels, and bought a Dodge Cummins P.U. 2 years ago and couldn't be happier with it as a tow rig.
regards, as always, jefe