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-   -   Old40dogs Diesel Conversion Project (http://www.risingsun4x4club.org/forum2/showthread.php?t=20224)

Old40Dog 09-13-2013 09:55 PM

Old40dogs Diesel Conversion Project
 
2 Attachment(s)
Theres always a lot of discussion about how to justify the expense of a diesel swap. Well, my plan has been to build a truck that I can drive until they wont let me drive anymore. I tend to keep my vehicles until I cant justify repairing them anymore. Mileage improvement,

Those who have known me for a while know that I bought my 1992 FJ80 with a current 308K on the clock and its 3FnE with a diesel swap in mind. Actually its 3FE with around 150K on it is from Treys FJ62 into which he did a nice V8 swap. I initially thought Id swap in a 1HDT then a 1HZ and add a turbo, but I kept running into the same issue. $7-$10K for a donor motor that Id still need sink another couple of grand into the rebuild. The result would be a sweet set-up, but just a little too pricey for my budget and taste.

At Cruise Moab, I spoke with a fellow from Portland who had swapped an Isuzu 3.9L Turbo Diesel into his FJ60 and was very pleased with the results. It was a clean conversion and was much quieter than another 60 on the run that day running a 4BT Cummins. It was suggested that I check out
Longbows (Don in Tucson) diesel conversion thread on Ih8mud. Don was so happy with the results with the Isuzu swap into his 60 that he did one in his 40 and is planning still another swap into his wifes 80.

The Isuzu 4BD2T is a 4 cylinder indirect injection intercooled turbo diesel with a Bore x Stroke 102 mm x 118 mm Displacement: 3,856 cc (235.3 cu in). Horsepower is 100kw (135 SAE Gross HP) at 3,000rpm, torque is 345Nm (255 Ft-lbs SAE) at 2000rpm. The 1FZ-FE produces 212 horsepower (158 kW) at 4600 RPM and 275 pound-feet (373 Nm) at 3000 RPM. Ill use an adapter to a A442F Toyota automatic transmission with a modified torque converter.

Im expecting this swap too take some time as I expect to be able to work on the project only in spurts as time and funds will drive the schedule. The donor vehicle is at my office in Denver (near I-25 & CO) and Ill remove the engine and necessary other items there and do the work on the 80 in Evergreen. If youre curious enough to want to hang out to observe or to lend a hand, all are welcome. Ill post up here as things progress. The next several weeks are already committed to some work travel and of course the Outlaw Run. I expect to get started on removing the engine from the Isuzu in late October/early November.

Pics of the Isuzu NPR (GMC badge) Donor and the FJ80 Recipient.

Fishy 09-13-2013 11:16 PM

Subscribed! Very cool Dave, looking forward to all the updates.

Rzeppa 09-13-2013 11:52 PM

Let us know whenever you have a slice of time that needs extra helping hands Dave, I'll be up there right away.

Inukshuk 09-14-2013 07:49 AM

Can't wait to feel refreshing air conditioned camp you will have

Old40Dog 09-14-2013 08:23 AM

Quote:

Originally Posted by Inukshuk (Post 239140)
Can't wait to feel refreshing air conditioned camp you will have

You could build a bunch of bunks in that box! :eek:

Old40Dog 09-14-2013 08:24 AM

Quote:

Originally Posted by Rzeppa (Post 239131)
Let us know whenever you have a slice of time that needs extra helping hands Dave, I'll be up there right away.

Thanks for the offer Jeff!

OilHammer 09-14-2013 01:29 PM

there is a thread on mud right now where the guy is rebuilding one. Very good info on that read. In my opinion, this is the way to go if you gotta swap. Having parts easy and in the states is a huge plus. Be sure to verify the dmv will let you do a heavy duty motor though

Old40Dog 09-14-2013 08:58 PM

Quote:

Originally Posted by OilHammer (Post 239162)
there is a thread on mud right now where the guy is rebuilding one. Very good info on that read. In my opinion, this is the way to go if you gotta swap. Having parts easy and in the states is a huge plus. Be sure to verify the dmv will let you do a heavy duty motor though

Pretty much my conclusions after 2 years of researching this conversion. Is this the rebuild thread posted by Wheelingnoob your referring to?

The 6BD1T is the HD 6 cylinder version of the 4BD1/2T and is definitely a heavy duty diesel. Its used in the much bigger FSR. The NPR's have GVWRs from 12K-14K GVWR so they are borderline on being HD size, but appear to be getting through on conversions in the less than 14K category.

Old40Dog 09-15-2013 04:49 PM

2 Attachment(s)
Here's a pic of the donor 3.9L diesel in the NPR. First one is turbo side.

OilHammer 09-15-2013 07:54 PM

Quote:

Originally Posted by Old40Dog (Post 239184)
Pretty much my conclusions after 2 years of researching this conversion. Is this the rebuild thread posted by Wheelingnoob your referring to?

The 6BD1T is the HD 6 cylinder version of the 4BD1/2T and is definitely a heavy duty diesel. Its used in the much bigger FSR. The NPR's have GVWRs from 12K-14K GVWR so they are borderline on being HD size, but appear to be getting through on conversions in the less than 14K category.

Correct, wheelingnoob.


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