The ECM (Emissions Control Module) which came with the CJ-7 & CJ-5, particularly, during the 1980s was of poor design, resulting in a mechanic's having to replace most smog fittings, and tinker with the vehicle extensively, such that it would pass the smog-check. As restrictions get tighter, and tighter still, and gas engines wear out, diesel-retrofits are a genuine prospect.
Engine/Transmission Selections.
So far, it appears that there a few options in terms of power-plant. The likely possibilities are:
- Volvo * 6-cyl.Volvo
turbo-diesel in a YJ *
- Peugeot (the 'New Process' transmission used in the Wranglers
is made by Peugeot -- the 'BA-10' -- ithis could prove to be fairly straightforward)
- Mitsubishi
- Isuzu example: * 4BD-T
in a Toyota Land Cruiser *
- Mercedes-Benz examples: * Engine
* inline-5
cyl.from a 300D (OM617)
- Cummins examples: * 6AT in a Toyota Land Cruiser More...* 4BT in a Toyota Land Cruiser * 6BT in a Toyota Land Cruiser *
- GM examples: * V6 * V8 *
- Detroit Diesel??? (Looks expensive!)
- Volkswagon * 1.9L VW in Suzuki Samurai *
- VM/Detroit Diesel (New Jeep Liberty) * Diesel and Gas
- Buyers Guide *
The least likely selections are:
- Renault (hard to find in the US)
- Perkins (parts, support, cost, etc. may be an issue)
Comparisons.
We are still acquiring data, which means that these comparison tables are not yet complete:
Re-invention of the Wheel (And, How to Avoid Doing So).
Of course, there are those who have already dropped some sort of diesel powerplant in their Jeep. We would be grateful for any information we could get our hands on: info@jeep2diesel.org And thanks to those who already have been extremely helpful in providing us with data/information up to now
Those who have done so already.
* Cummins 4BT in a YJ * GM 6.5L Diesel in a YJ * More coming shortly... (check BBS in the mean time) *
And those who are in process....
Resources and Links.
We shall continue to add links like these in the weeks/months to come:
| Diesels
for Sale web sites (BioDiesel Discussion Forum) | Mitsubishi: DieselEngine.org
| U.S.
Diesel Engines |
| Rebuilt Diesel Engines | Ford-Cummins | Diesel Engine Trader | "The small diesel engine as an automotive engine" |
| Custom Design | Advanced Adapters | Novak | Adapting the AX15 & NV3550 trans to the Model 300 transfer case |
| TrailTalk Forum | BioDiesel Forums | Turbo-Diesel Register | CIS Auto *** | Pirate 4x4 | College Internet Solutions | Cummins 4BT Conversions (NEW!)
Vegetable-Oil or "BioDiesels:"
| Grassolean: BioDiesel Fuel | BioDiesel.com | Vegetable-Oil Diesel Conversions Kits |
| CCAT BioDiesel | Veg-Conversion: www.oilpress.com | http://www.greasel.com/ |
| Vegi-Van | Grassroots Biodiesel & Oil Fuel | Straight Vegetable-oil as Diesel Fuel |
| Rebuilt Diesel Engines | Ford-Cummins | Diesel Engine Trader | "The small diesel engine as an automotive engine" |
| Custom Design | Advanced Adapters | Novak | Adapting the AX15 & NV3550 trans to the Model 300 transfer case |
| TrailTalk Forum | BioDiesel Forums | Turbo-Diesel Register | CIS Auto *** | Pirate 4x4 | College Internet Solutions | Cummins 4BT Conversions (NEW!)
*** Toyota Land Cruisers, but they're
"second-cousins" to the CJ, mechanically speaking
More information links coming in the near future...
Some More Places of Interest:
Vegetable-Oil or "BioDiesels:"
| Grassolean: BioDiesel Fuel | BioDiesel.com | Vegetable-Oil Diesel Conversions Kits |
| CCAT BioDiesel | Veg-Conversion: www.oilpress.com | http://www.greasel.com/ |
| Vegi-Van | Grassroots Biodiesel & Oil Fuel | Straight Vegetable-oil as Diesel Fuel |
Some Interesting Insight.
We would like to read more like this one:
http://forums.biodieselnow.com/topic.asp?TOPIC_ID=375
Excerpt:
http://www.offroadpakistan.com/tech/motivation_equation.php
Excerpt:
Excerpt:
http://www.geocities.com/nerockcrawlers/turbodiesel.html
Excerpt:
http://www.turbodieselregister.com/forums/archive/topic/39843.html
Keep on Searchin:'
Things are changing every day...
We would like to read more like this one:
"I converted my l981 Scrambler CJ8 to diesel
in 1990 using an engine supplied for the South American Jeep market.They
had factory installed bellhousings for the T176 4spd. trasmission. The engine
is the ISUZU C240 4cyl.DIESEL! I get 29 MPG running 16" Michelen tires.I
have seen conversions with the SD33 Nissan that the INT.SCOUT used.(way ahead
of the times) The world drives diesel jeeps while America sleeps!"
http://forums.biodieselnow.com/topic.asp?TOPIC_ID=375
Excerpt:
"... the prohibitive
price of petrol has created a diesel conversion craze."
http://www.offroadpakistan.com/tech/motivation_equation.php
Excerpt:
"Diesel engines are
a great idea for Jeep swaps. However, they seldom materialize successfully
past the idea stage. The lack of good, light-duty domestic diesel engines
makes these swaps a discouragingly difficult process. Foreign diesels are
usually quite advanced, but are difficult to find and maintain."
http://www.novak-adapt.com/knowledge/engines_general.htmExcerpt:
"...I undertook the task of rebuilding my
Jeep YJ. This included full width 3/4 ton axles, a T-18 transmission, Dana
20 t-case with Spicer 18 gears, and the finishing touch- a 6 cyl. Volvo Turbo
Diesel."
http://www.geocities.com/nerockcrawlers/turbodiesel.html
Excerpt:
"...DT, Cummins "B" series engines can be
had with chevy or Dodge bell housing adapters and SAE housings. Advance Adapters
makes a bell housing to adapt a chevy small block to your AX15. So it could
be done. But The low end torque of the Cummins is sure to shorten the life
of the AX15, I would vote for using a NV4500. "
http://www.turbodieselregister.com/forums/archive/topic/39843.html
Keep on Searchin:'
Things are changing every day...