jeep guts

I have a MJ with a 3.3 Cummins Diesel, 5 speed 4X4, ALL Jeep equipment converted to it. I did the entire job myself, I made all the parts from scratch, thats to say motor mounts, bell housing, all brackets, alternator, AC, power steering, and vacume pump. My biggested mistake was using the internal slave cylinder, and I think the flywheel is to lite, the center of the clutch has broke apart 3 times since the swap was completed. The little Diesel produces only 85 HP But it has 210 Ft Lbs. of torque, thats 5 less then the 4.0 gas jeep motor. I don't regret the swap at all and would do it again in a heart beat The 3.3 is a tight fit, height wise, I almost didn't do it because of it, But it does fit with stock suspention, 3" lift would make it much easier. I had to alter the oil pan and sump and oil pump suction tube as well.

Does the motor run ok at upper rpm when it warms up? Is there at any given time, that it runs ok? Even if it's short lived. If you unplug the o2 sensor, it will stall at startup, then restart and should stay running, just bad on gas mpg.

I would like to give you a little help if you don't mind. You will need to focus alot of attention on upper rpm torque. Think of hp as carrier of torque, the higher the hp, the faster the torque or power gets delivered. If you have a short distance to get up to speed, then you will need more hp. But if the distance is substantial, then hp is not of a big concern, torque is. Having said that, there are a few things that will not cost you any more money, but can give you a tremendous amount of hp and torque. Email me dheger5@yahoo.com

I had a 87' that did the same thing. Iac, its more than likely the problem, of course cleaning it with brake clean can't be good, just to many sensitive parts down stream from it. You may have wipedout another sensor because of it. Experience has taught me to use the right stuff or you can do more damage that good. Reclean with injection cleaner, and try it.

Acually, there may be several that will fit. Leaf springs are measured by width, thickness, and length, also rate, but I'll get into that later. Contact your local spring shop, usually under truck springs, They should have a listing of all the vehicles that would fit. Thats to say you would have to measure your main leaf from eye to eye, or bolt hole to bolt hole keeping the arch of the spring into mind. Just in case they don't have a listing for Comanche. Any reputable shop should have a generic listing for length and rate. Now rate, basically the higher the rate the more it will carry, they are made of higher carbon steel. Any spring shop that I have ever dealt with can, and usually will rearch your springs, provided there not shot.

Hey Guys, Thanks for the positive feed back. Sorry I don't have any pictures of the build-up. But I do remember I lot about it, so fire away! I will tell you something that happened when I drove it the first time out the door. I wanted to check the 4X4 out, to see if it was working. So I drove it up against a large tree, and put it in low 4x4 and let the clutch out slowly. The truck just sat there and idled in 1st gear, my first thoughts were, DAMIT, the 4X4 doesn't work! I got out of the truck, with it still in gear idling. None of the wheels on the drivers side were spinning, so I checked the other side, both wheels were spinning away! I was shocked to see that, it was idling, that's torque! It is an impressive engine, I'am not trying to brag. It takes a lot to impress me, just the way I am.

Hey Guys, I've got some pictures for to you to see. The engine was purchased new from a dealer in penn. It was intended to be a power unit , gen set or water pump. I machined the flywheel to except a clutch and pressure plate from the jeep. The oil pan had to be altered as well as the oil pump suction line. All the accessories on the front of the engine had to be mounted as well. Of course the motor mounts had to be custom made . The water pump had to be changed to, Cummins makes 2 different pumps, high mounted fan and low mounted fan. Guess which one I had. The battery had to be switched from right to left side, to accomidate for the air intake and turbocharger. Oh yeah the turbo had to be changed also from high to low mount. The bellhousing had to be fabricated also, I made that to. All in all I did the entire job myself. It took, I'am going to guess, because the truck had many other issues, about 2 months to complete. And then there was the trial and error period, probably1 year or so. I made all components bolt-on so I could change to different bodys without any major work or alterations. Something else I almost forgot, the first diesel I put in this Comanche was a Nisson 2.4 Liter, it was gutless and needed to be rebuilt. Thats when the Cummins came into the picture. Still have the Nissons (3), anybody interested?

Hey Jeep Fans, I have been driving around in my diesel Comanche for about 6 or 7 years now. What makes it different, is that it has a 3.3 Cummins 4 cyl. diesel engine under the hood. It's hooked up to AX15 5 speed trans. and it's also a 4X4. I did all the work myself in my shop. The engine makes 85 hp. and 210 ft lbs. of torque. It's not a lot of hp. but it's the torque that makes it a killer setup. It gets 33 mpg city, 40+ highway, 3:08 gears, and 26 mpg city 30 highway with 3:54 gears, all day long. The size of the load doesn't seem to make a whole lot o difference. I'am new to this site and I'am having trouble getting pictures on to this site. I applied the Img key but I can't get it to go anywhere from there. Any help would be appreicated.