FTE or jeep-dsl, I am interested in more info and possibly pics of the over-boost valve conversion used to operate the vacuum fuel shutoff. I think it's a cool idea!

I too am in the middle of a 82 300sd swap into a 89 Wrangler. One big positive for me is running a two tank WVO self made kit in the soon to be completed swap. I haven't fabbed a WVO kit yet still working out the details. On drawback to this Wrangler is it's an automatic and I really want a AX-15 5 speed. If I convert to 5 speed will the AX-15 bolt up to my T-case?

jeep-dsl I will be buying an adapter kit from you soon!

 

Wow...I suppose that a realization that Rudolph Diesel actually manufactured his engine to run on PEANUT OIL is lost on this guy. I'd go even further to suggest that he's totally in the dark regarding LUBRICITY....and a working knowledge that WVO is loaded with NATURAL lubricity, where petroleum diesel has to be infused with an un-natural lubricity....

A little reading and knowledge is not a bad thing.

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A word of caution:
One fellow out here in Va actually got a batch of WVO where the mom'n'pop chinese restaurant had hired a new guy who tossed the recent oven-cleaning solution into the WVO barrel. When the fellow out here picked it up and ran it thru--- it did what degreasers do. It stripped his internal lubrication and siezed the engine. KNOW YOUR WVO SUPPLIER!!

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More info? I have serious concerns about the use of the AX-15 with diesel torque.

 

The AX-15 is pretty solid - putting Cummins-level torque behind it might be asking for problems, but an OM617 shouldn't be that hard on it. A well massaged 350 puts out an easy 400 lb-ft if you want it to and an AX-15 can handle that.

 

Good to know. I'm more familiar with the AW-4, and I've seen V8 HP and bigger than stock torque put thru them, but I have an AX-5 in my Comanche-framed M998-bodied replica.
I've known that an AX-15 is the upgrade for the AX-5, but wasn't familiar with HOW MUCH it would upgrade.

I'm familiar with the T-18/NP435 trannies, as well as their downside -- they're actually 3 driving speeds with a granny low crawler gear. Not really ideal for fuel consumption savings.

 

Jeep-dsl, you are one of my heroes. Great job with the conversion. I want one; will call on Monday.
Rab475, could you please elaborate a little on your t18 idea.
The rest of you, thanks for all the gearing info and other constructive idea. I am actually considering starting with a conversion of my 82 SD to a manual transmission. The search for ideas is what led to you site, guys, which I am grateful for. I measured the distance between the shifter square opening from an early 240d with a manual and it came to 33 inches from back of engine to shifter opening and 29 inches from back of flywheel to shifter opening.
What 5 speed would you guys think might fit in there, considering the relative thickness of an adapter plate? I might go with jeep-dsl plate, but remains to be known, whether it will fit or not. Judging by the position of the square shift opening, the potential transmission could be slightly longer, for my own personal preference, hence more than 33 inches, with some well cutting, off course!
Any input would be highly appreciated.
Regarding the use of veggie; we need to accept the fact that it might produce carbon deposits, which might, in turn, interfere with the normal friction of engine parts. Thinking that low tech veggie would outperform years of advancement in lubrication technology might be overly hopeful. Driving for free, temporarily, is priceless.
There is also an offset of emissions; one beneficial and one harmful! Nox vs. …!
Jeep-dsl, please see if you could give me the dimension between back of the OM and shifter.
Tx to all.

 

FTE,
Do you know what your RPMs are when doing 65MPH?
I'm running 35"s w/4.56 gears = approx 2900 RPMs

I'm contemplating dropping down to 4.10 gears.

BTW,
The other day I calculated my MPG, got 20 on the highway....and that was with a leaky delivery valve (didn't notice the leak, until the following day) :p

need to source those copper washers.

 

No, I don,t have a tac but with the converter locked up I think it is @ 2500 or so, unlock the converter and it increases about 300-500 rpm. Drop it down into 3rd and it will run 65-70 no prob, but it is starting to run out of its power band, so I think it is real close to it's sweet spot. Best mpg with this setup is 31 freeway only 250 mile pt A-B. This is acurate, I have made this trip numerous times and get the same #'s. In town mixed I get 24-26 consistanty, driving it like I stole it. I think a more "street friendly" 29 in tire would gain me a few extra mpg's, but I'm cheap and will wear these mud tires out first! I think all you need is an od trans and you will be happy.

 

 

What did you have to do for exhaust to pass PA inspection? Did you ever get your prints made?

 

Just made pipe from manifold to muffler, we took cat converter out. Passed at 2 different inspection stations.