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has anyone ever heard on someone putting a diesel engine in a jeep? specifcly a 91 yj?
i have the 4 cylinder engine. and i like the power and roar of the diesel engines!
anybody know any websites?
 

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Try some back issues of JPmagazine, I saw a flat fender with a diesel, 'Ol Smokey' I believe he calls it. Failing that call Advanced Adapters and ask them, chances are they've been involved in something like that. Been eyeing up a turbo 4cyl Cummins myself about 105 hp. 4cyl version of the 5.9 dodge..........Now hook that to a NV4500 w/D300 transfercase
Oh the possibilities.......
Post what you find out it would be of interest to me I just don't want to change Trans and transfer case cause of $$$$ What kind of engine have you got?

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75 CJ5, Flintstone floorboards,dents, lumberwagon suspension, 31 muds, Warn 8000. In otherwords...Stock
 

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Superfly
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"For enhanced responsiveness Cherokee also offers a 2.5 L turbo diesel with intercooler and electronically controlled fuel injection. It produces 115 HP and 300 Nm of torque." Got that from an Argentina Jeep site. BTW, 300 Nm = 221.2686 lb-ft.

This is from a South American site, regarding the Jeep Liberty: "The turbo-diesel is also new for Jeep, and marks the first time a Mercedes engine has been fitted into a Chrysler vehicle, the unit a thoroughly modern double overhead camshaft common rail four-cylinder that produces 105 kW at 4 000 r/min and a whacking 343 Nm of torque at 2 000 r/min. This makes it far and away the most powerful 2.5-litre turbo-diesel engine available in a 4x4 in SA.

Top speed is 164 km/h, and it accelerates from 0-100 km/h in 15.3 seconds.

The 2.5-litre engine provides a fuel economy of 7.5 litres/100 km on the extra urban cycle, 11.7 litres/100 km during city driving, and 9.0 litres/100 km on the combined cycle."

105 kW = 140.8073 hp
343 Nm = 252.9838 lb-ft
7.5L/100km = 37.6641 mpg (Imp)
11.7L/100km = 24.1437 mpg (Imp)
9.0L/100km = 31.3868 mpg (Imp)

With fuel economy and torque figures like that, I can live with 30 less hp.

Unfortunately, I don't know if that motor uses the same bellhousing pattern as the stock transmissions. AFAIK, that is a Mercedes Diesel engine which should be quite reliable. Remember that they are a well-known commercial-duty truck manufacturer and the Diesels in their cars have a reputation for durability.

And of course, you'll have to figure out some way to get one of those motors into North America since they are not currently being sold domestically.

...lars

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I have an 85 xj cherokee with a 2.1ltr renault turbo diesel i have tweaked it out pretty good .There is endless possiblityes my next diesel is mecedes 5 cylinder turbo diesel.Let me know if you need any thing answered.There is a guy in the US who has a volvo td in his yj.
 

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lars said:
This is from a South American site, regarding the Jeep Liberty: "The turbo-diesel is also new for Jeep, and marks the first time a Mercedes engine has been fitted into a Chrysler vehicle, the unit a thoroughly modern double overhead camshaft common rail four-cylinder that produces 105 kW at 4 000 r/min and a whacking 343 Nm of torque at 2 000 r/min. .

105 kW = 140.8073 hp
343 Nm = 252.9838 lb-ft

holy bejesus, thats more power than the 4.2 in my J series pickup. now bring the HP down to around 3000rpm and I would be happy, 4000rpm is a wee bit to strung out for a diesel for my liking.
 

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Superfly
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Dieseljeep said:
I have an 85 xj cherokee with a 2.1ltr renault turbo diesel i have tweaked it out pretty good .There is endless possiblityes my next diesel is mecedes 5 cylinder turbo diesel.Let me know if you need any thing answered.There is a guy in the US who has a volvo td in his yj.
I'd love to read more info about Diesel->Jeep conversions.
What are the specs on the MB 5-cyl TD?

...lars



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The Mercedes Turbo Diesel is common in the older 300 td cars .
I havent got around to pulling it a apart other than the injecters and turbo so far . The injectors have a 2700 max "crack "rate (read more power) The turbo is a t-60 size with lots of tricks that can be done to it .Waste gates can be played with to create lots of boost . Mercedes also has the ports for an exhaust brake with I am in the process of fabbin up with other parts from a 3.9 cummins.I will most likely rip into the engine next week . I can punch this out to give more displacement .

Bore 88.6mm x stroke 88.1mm Max bore 93mm
19:1 compression Max comp 21.2:1
120 hp (no turbo) Havent got that far
296 ft lbs! Havent decide what gears
injectors 2000 lbs/max crack 2700!
custom ground, cams available
operatings RPMs up to 4600

This should be fun as I know someone with one in a Ford Exploder,He has plenty of power and excellent fuel economy.32 mpg.
 

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I put a chevy 6.2 L diesel into my CJ7 last year, and it is great! I made my own engine mounts and adapter plate to fit it to the T-19 I have in my Jeep. It was a tight fit, and it was kind of tough to fit dual batteries in as well. I need to do some tuning to the engine still since I got it from a farmer who had it sitting in a shed. I am also going to put a turbo on it from a chevy 6.5 once I get some money, and I am in the process of building a snorkel for it. I don't get as good of fuel economy as you would from a smaller diesel, but boy it sure doesn't stall too easy off-road!
 

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Superfly
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crawlnjeep said:
I put a chevy 6.2 L diesel into my CJ7 last year, and it is great! I made my own engine mounts and adapter plate to fit it to the T-19 I have in my Jeep. It was a tight fit, and it was kind of tough to fit dual batteries in as well. I need to do some tuning to the engine still since I got it from a farmer who had it sitting in a shed. I am also going to put a turbo on it from a chevy 6.5 once I get some money, and I am in the process of building a snorkel for it. I don't get as good of fuel economy as you would from a smaller diesel, but boy it sure doesn't stall too easy off-road!
How does the weight of that motor compared to the V8 or I6 you had it in before? What are you using for front springs?

...lars



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The engine probably weighs a couple hundred more pounds than the 258 I had in it before, but since I have a coil suspension up front I just went to the wrecking yard and found some suitable springs, which are now a lot stiffer than the ones in the rear. I have some pictures of the engine swap but don't have a scanner. I will try and scan some pictures some time.
 

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I would love to get one of those 3.9L Cummings turbo 4cyl engines, I have seen them in some magazines been swaped in. They don't have too much horsepower but they have huge big block type torque. I have no idea where to find them though, or what you could bolt up to it. I think they put them into those little cab over 3 ton vans, but I don't know.
 

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Probably find one of those 3.9 Cummins at a heavy equipment yard or ritchie Bros aution, quite common on generators or air compressors
 
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