cummins turbo diesel in a cj5

just wondering actually wanting to but a 4 cyl cummins turbo diesel in my 75 cj5 can i do this

 

Wouldn't it be a little long for a CJ5. I have seen pics of a Cummins 4BT in an early Bronco. I may be just as easy but I doubt it. I would think firewall mods would be needed and possibly a remote mounted radiator. http://www.fordcummins.com/jeepfront.jpg- pic of a yj with a 4bt
I guess it can be done. Just found those pics. I would like to see it done diesel JEEPs are cool.

 

There was a link to someone with the 4bt in a flattie. If it will fit a flattie it will fit a cj5.

 

Ive seen pics of it in a wrangler so yes it is possable

 

Here is a link to a Cummins B3.3 in a wrangler.
http://pg.photos.yahoo.com/ph/tdiwyse/album?.dir=/ce56scd

 

Yeah, this would be an awesome deal. That being said, I have researched it some. You would definitely have to beef up the frame and suspension in the front since the engine would weigh over 200 pounds more. Plus, I have read that the stock Dana 30 front won't like that extra weight either. Then you would most likely need to go spring over in order to clear the oil pan. Transmission wise some came with a 4 speed, some with the TH400 which is long for a CJ5. Apparrently the 4tba will last forever if taken care of and gives really good mileage. Also, I have read that you can make some pretty serious power with them(400tq)

Just think, 4bta-NV4500-Dana 20 with terra lows-4.56 and you could idle over anything!!!

If you do this, take lot's of pics.

High5

 

I have a cummins in my truck, and with all the warranty work and the complexity of it I NEVER want to own a diesel unless it is under a power train warranty.

Besides, the exhaust fumes from it are virtually un-breathe-able.

I have a diesel tractor and I can use it for hours with no problem, but just having the passenger side window open on the truck will gas you out.

I like the diesel truck, and when I get another truck it'll be a diesel, but I wouldn't swap the complexity and hassle of one of these highly computer controlled diesels for a simple gas jeep engine. Especially if I had to bear the cost of maintenance.

Now, if Dodge would ever put the Mercedes diesel into a pickup.....

That would be interesting...

 

I've seen a 4BT in an M715, and it's a great engine, but it's way overbuilt for a CJ IMO. If I wanted a diesel, I'd look into some of the lighter and smaller models like one of the passenger car diesels. It's been discussed before here - search.

 

After having owned/managed a fleet of diesel trucks, I would love to have one in a Jeep. The 4bt is a great motor, but really way too heavy for a CJ. Weight distribution would become an issue, You would end up very nose heavy. Also I believe that a substantial lift (custom because no-one makes a kit that will support the weight), and frame mods would be neccesary.

Reliability wise I don't think it would be a problem if you used a non-computer controlled engine. Mechanical injection and a non-variable turbo would be very reliable. The horrible reliability issues that pickup owners are having with diesels these days are mostly due to the efforts of the Big Three to soup up the diesels in their current horsepower race. The commercial versions of the same engines are used in much larger trucks, but produce much less power.

We had 14 newer computer controlled diesel trucks and two early non-turbo mechanical injection trucks. THe old trucks were absolutely reliable. They always ran. They were a lot slower, but all of the new trucks spent time in the shop for engine issues. The 13 year old trucks never had an engine problem.

Land Rovers, Toyotas, Nissans, even Jeeps all offer diesel engines off shore. One of those adapted into a Jeep would be a great setup. I've spent a lot of time looking at it, and the best route I can see is swapping a Toyota drivetrain into the Jeep. Engine-tranny-transfer case-and an appropriate drop front axle. The biggest problem is that once its in you'll have a lot of trouble finding parts for it. Cummins parts are easy, but you'll have the wieght distribution of a loaded wheel barrow.

I really want to do something like this, I just can't figure out a practical way to make it all come together.

Diesel advantages:

Reliability - Offset by time required to install it and parts problem
Economy - You'll spend a lot more on the conversion than you could ever save on gas.
Torque - Would it really drive any better than 225?
Fuel injection - all diesels are, but I think it would be a lot less complicated to inject a 225 or swap in another gas motor.

225 advantages -

Reliability - My neighbor's runs like the proverbial sewing machine.
Economy - Less than a deisel, but not bad in SUV land.
Torque - that heavy flywheel 225 drives as well as any motor ever put in a Jeep. Do a tranny swap if you need more.
Fuel injection - Its not easy, but people are getting it done.

I think the only real advantage to a diesel right now is cool factor. I think driving my Jeep is cooler than wrenching on it. I'll stick with what I got until a better solution or a winning lottery ticket presents itself.

 

Here's one all ready to go --> http://sacramento.craigslist.org/rvs/240048505.html

 

There was a Perkins Diesel that came from the factory in some CJ5's... find out what that on is and go that route.

 

Weren't these engines put into Massey Ferguson tractors of the same era?

 

Massey still uses some Perkins Diesels.

 

I have a buddy with a Woodmizer sawmill. It has a 51 hp 4cyl Cat diesel running it. I looked it over really well and it isn't far off the size of flathead. The biggest trouble with that would be the adapter. I think it would work well. Sure 51hp isn't a lot but it is still more than a stock flatty engine. I think these engines are about 5 large in the crate. Something to look at maybe?

 

well thanks guys for all the help but ive decided to just go witha dodge viper v12 engine with the 6 speed

 

only kidding yeah i cant do this now for im in school and dont have any money now but i plan to get another vechile sell the old jeep to my dad and we make it into a rock crawler well thats more his idea but i was just thinking how kick *** it would be to have a cummins or cat sitting inthere like a sleeper and i will look into those perkins as well o yeah ive also heard that dodge is dropping the contract with cummins when it ends and going with cat sweet

 

Check out these links for diesel conversions.

http://messages.jeep2diesel.org/

http://www.dieseltruckresource.com/dev/showthread.php?t=112807

http://www.phxgrp.com/transmission.htm

 

I work on diesels for a living. The mechanical diesel engines make alot less noise than the newer electronic engines, but the mechanical engines smoke alot more than the newer electronic engines. I could not imagine having the top off the jeep and smelling the exhaust of a diesel engine or having to listen to the rattle of one of those things. I don't think you can buy a diesel pickup without a/c because when you drive one you have to leave the windows up so you can hear yourself think! I will admit in the last couple years they have made great strides in making them run quieter. But they still stink!
Besides the cool factor of owning a diesel, I think it would get really old really fast! I'm not against diesels, they pay my jeep bills, I just think a jeep does better with a gas engine.

 

I know there's a lot of pros and cons about diesels, and that a lot of guys love 'em, but I personally can't stand 'em. I don't like the noise, I don't like the smoke, and I don't like the stink. I used to travel a lot and stayed in motels for weeks, sometimes months, and it seemed there was always some s.o.b. that felt the need to start his stinking, clattering pickup or semi in front of my room at 5am and let it run while he showered and went to breakfast.

Now I live in a neighborhood in a "country town" where gigantic diesel pickups seem to be "in vogue". I can understand something like that having a place in a farm or construction environment, but not as daily drivers to drive to the office in. People here buy 'em just to pull their camper or boat with a few times a year, and drive 'em year round. Makes 'em feel like cowboys I guess. Then there's the guys that just aren't happy unless they're annoying somebody else.