1988 Isuzu Trooper diesel conversion

Above left is a photo of the warning light cluster adapter harness. The remaining photos are of the fuel pickup tube I fabricated.

As the in-tank fuel pump had to be removed (the diesel has its own pump, fuel can't really be drawn through the electric pump and running the electric would produce too much line pressure), a pick-up tube had to be made to replace it in the armature.
I decided to cut the tube and add a flare fitting, which allowed the use of a standard union and another short piece of fuel/brake line. The Harbor Freight $13 flaring kit worked perfectly well for this - just be sure you 1) get the double flaring kit and 2) install the fitting before flaring the line.
The new line was cut and slipped into a Carter sock filter (no idea about the stock application, but I assume it fits some sort of fuel pump. Picked from a catalog at the parts place. I'll post the part number if anyone is interested...), which was perfectly sized. I added a hose clamp to make sure it won't fall off the line, but it fits so snugly it's probably overkill.
There were two holes in the top plate where the wires passed through, so I welded them shut. I plan on painting it before installation.
The filter was expensive, around $20, but the rest of the parts were very cheap. I think this should do the job just fine.

Not much new here lately, as I've just been working on the wiring and it's not terribly exciting. Here is a shot of the interior - I removed the entire dashboard and HVAC system to access the harnesses. I decided, after tracing the entire engine control computer harness, to remove it entirely. It cleaned the engine bay and under-dash area up quite a bit, and none of it was needed after the gasoline engine was removed. At least these things are easy to dismantle...

An invaluable resource has been the official Electrical Troubleshooting Manual (published by Helm, Inc.) for the 1988 Trooper. Much more information than can be found anywhere else - the Haynes manual (pictured, funny enough) is a joke when it comes to wiring information.

I decided to use the 1986 diesel warning light cluster, as it has no 'check engine' lamp, no 'O2' lamp, and it features a lamp which lights up when the water separator is full.

Instead of cutting into the chassis harness, I made an adapter harness to enable a plug-and-play fit, as the diesel cluster has a different connector. I've tried to make it easy to swap the diesel parts over to another chassis in the future, just in case, and so I design accordingly.

I used the diesel harness-side connector and the connector from the gas cluster to build the harness, as well as the electrical book and some diagrams for the diesel wiring (as well as 12V test equipment, of course). See photo in the next post...

On the left is the C223 glow plug wiring. 4JB1-T is on the right. Click images for larger versions. These have been posted so knowledgeable people can help me wire the glow plug system!