Newbie: Conversion on a Mitsubishi 2.5Tdi engine

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garyq's picture
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Joined: 02/07/2005

I drive a Mitsubishi Pajero(Montero in the U.S) and it is powered by a 2.5 liter turbo diesel engine which is also intercooled. I am seriously considering converting the rig to run on WVO. I reside in the Philippines and was wondering if there are any special considerations that I have to look closer into. I already contacted Greasecar and they cannot make any comments on my projects coz of the simple fact that there are no diesel powered Montero's stateside. I did searced the forum already and daily I am learning many things about being this technology and how to properly use it. Any comments will be appreciated. :)

P.S I don't think pre-heating will be a big problem for me as it is always hot and humid here:)

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Honda Civic EG6 1.5VTEC D15b
MMC Pajero V44 2.5Tdi 4D56

Bolete's picture
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Joined: 12/01/2004

Hi Gary,

One thought about preheating:

remember that the VO needs to be at least 160 F at the time of injection. So even if it's warm out, you should make sure that whatever you do use to heat, it's getting the oil to temp.

If you settle on a Greasecar kit, they have a lot of pre-heating ability, but they have admitted to me that the temp at the IP varies considerably from user-to-user. adding an in-line temp gauge just before the IP will tell you if you have the right heat or not.

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2001 VW Jetta TDI. Installing Greasecar kit as you read this.

jcm55's picture
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Joined: 12/21/2004

Garyq,

I just finished converting my '83 Dodge D50 pickup. This truck was manufactured by Mitsubishi for Dodge, and is the same as the Mitsubishi Mighty Max pickup. It's got the Mitsubishi 4D55 2.3L turbo diesel engine in it.

Conversion was pretty straightforward. I used a Greasecar kit. Not a lot of veggie miles on it yet, but so far, so good.

One thing I've noticed that's specific to this engine is that the injection pump is not very well thermally coupled to the engine, so even after an hour of freeway driving, it's only warm to the touch. Also, the metal injector lines between the IP and the injectors are quite long.

I suspect that because of these factors, the VO is not really hot enough going into the injectors. Even though it's 180-190 degrees F going into the injection pump.

I don't have a good way to measure the fuel temp at the injectors, but I'm considering fabricating new injector lines that are somehow coupled to a coolant heat exchanger.

Not sure how similar the 2.5L turbo diesel in your Pajero is to the 2.3L in my pickup, but I'm happy to try to answer any questions.

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Jim Meehan
Sausalito, CA
'02 VW Golf GLS TDI
'83 Dodge D50 4x4 turbo diesel

jcm55's picture
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Joined: 12/21/2004

Just noticed in your signature that your engine is a 4D56, which is quite similar to the 4D55.

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Jim Meehan
Sausalito, CA
'02 VW Golf GLS TDI
'83 Dodge D50 4x4 turbo diesel

garyq's picture
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Joined: 02/07/2005

yehey!! at last a response! yup da 4d55 is the same as the 4d56. At least I know the conversion is possible. Regarding the VO not heating up, I will take note of this. An exchanger might be a simple solution. Thanks!!

jcm: if it's not too much of a hassle, can you send me the installation manual for the kit so I can now check how I will do it for my rig? Thanks!

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Honda Civic EG6 1.5VTEC D15b
MMC Pajero V44 2.5Tdi 4D56

jcm55's picture
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Joined: 12/21/2004

I can try to scan the manual if you like, but the one I have is not vehicle specific. I actually got my Greasecar kit second hand. Bought it from someone who got it for their Ford truck but never installed it.

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Jim Meehan
Sausalito, CA
'02 VW Golf GLS TDI
'83 Dodge D50 4x4 turbo diesel

garyq's picture
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Joined: 02/07/2005

Yup that would be great!! I just want to have more info before I take the plunge. Thanks alot!

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Honda Civic EG6 1.5VTEC D15b
MMC Pajero V44 2.5Tdi 4D56

wny pat's picture
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Joined: 10/31/2004

I do not see why any diesel cannot be converted provided the wvo is very well filtered and properly heated before it hits the IP.

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Hauled enough dino petroleum products!!!

garyq's picture
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Joined: 02/07/2005

jcm: I'm really interested to see how the install went with your 4d55 as it's very similar to my engine. if you can send some pix and the scanned copy of the installation manual that would be great. If you can mail it then it would be better and I will pay you for the costs. Thanks alot!:)

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Honda Civic EG6 1.5VTEC D15b
MMC Pajero V44 2.5Tdi 4D56

Beercan's picture
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Joined: 03/31/2005

JCM55, I guess just a few folk have tried to convert these Unusual diesels, As far as I've seen you and garyg are the only ones to try. Now I'm ready, but also could use some help. Sure could use a drawing or schmatic of your fuel hook up.. If it is not to much trouble. Thanks... I have a Dakota with a Nissan SD22 installed and running on diesel...

VeggieRanger's picture
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Joined: 04/27/2005

Hi,

I'm new to the site and this post coaxed me to go ahead and register. I just bought a 1986 Ford Ranger 2.3 Turbo Diesel to convert to veggie. It has 52K miles on the Mitsubishi 4D55T motor. I am also a Mitsubishi Montero/Pajero/Raider/Shogun enthusiast and have rebuilt many of these trucks. My goal is to eventually drop a 4D56 motor from Japan in an '80s short wheel base Montero/Raider and convert it to grease as well.

Anyway, I'm glad to hear that there are others who've converted this engine. I'm working out all of the kinks in the truck and will burn a whole tank of petroleum diesel before starting the conversion. I want to make sure it's running well and I know the truck well enough before doing this.

Good luck with the Pajero! I will be following your progress!

Powell

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The American Farmer: Oil Barons of the 21st Century

Yoper's picture
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Joined: 08/16/2005

I have an old 83 Mitshbishi pickup and want to install a grease kit, but am interested uin a used kit or I am willing to build my own system if I have more info. Can anyone share their manuel with me I am willing to pay for the expenses.

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Upper Michigan - 83 Mitsubishi 2.3 turbo disel

__________________

I have a Mercedes diesel that is running on veggie oil using a used Grease car kit.  Its been running good.

TDIguy's picture
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Joined: 06/07/2004

Hmm well there is allways the idea of using electric heaters for the injector lines also might be hard to make a coolant heat exchanger for such a thing unless you can find some very flexible hose that can take the heat.

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01 vw jetta TDI
Vag-Com tool at home
RC stage 2 ECU (loveing it)
VR6 clutch / single mass flywheel.
Running on Veg sence summer 04 still learning new tricks
House and property protected by expert marksmen.

sweetbabytruck's picture
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Joined: 07/05/2006

soooooo, what happened with the conversion on that lil truck???

inquiring minds wanna know.

thanks!

petefact's picture
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Joined: 08/03/2006

I have a mitsubishi 2.3l turbo diesel pick-up that I'm running on vegoil. I'm trying to find glow plugs and other parts without going to the dealer. Any ideas?