Thank you for the kind responses. I tried to fit this motor into a 1992 Mazda B2200 I had first, but after removing the motor and tranny, I realized it was too much work to make it fit, so I looked for a S10 due to the fact that it was what the motor came from. 5 years before I bought the diesel S10 I looked at it, and the guy selling it said it wouldn't go, but $500 would take it. I didn't have $500 to blow on a rusty truck that wouldn't start so I left it. A year later I seen him driving it...he said the glow plugs were bad and that's why it wouldn't start. Last year, I did have the money, so I advertised for a diesel engine. Several Nissans came up, with no transmissions, or for lots of money, so I decided to go see this guy who had the S10. He still had it, parked in his yard for 2 years, unable to drive it because it wouldn't pass our yearly Motor Vehicle Safety Inspection, and wasn't worth repairing. After hearing it run, I gave him $250 and trailered it home. I sold the 4.3 engine from the Sonoma for $250. <img src="/forums/images/graemlins/lol.gif" alt="" />
Fitment was rather straight foreward, as the frames and cabs were the same in the front. Motor mounts, some wiring, and the installation of the pedal cluster (the Sonoma was originally an automatic) was the most of it. I used the Sonoma driveshaft, changed the rearend gears from the 3.42 in it to 3.73 for the diesel. I have a 4000rpm tach for a boat in it, hooked to the alternator, and dialed in to be accurate with a mechanical hand tach held to the crank. A tricky part was the speedo...the Sonoma used an electric one, and the 5 speed was mechanical. The wiring harness plugs were different for both and wired in a different order, and I had no wiring diagram to look at. After butchering 2 speedo units, I made one to work that looks stock. I used the stock aluminum 4.3 radiator, and it has yet to run hot with this set up, even when hauling a heavy load.
Probably the worst part of all this was it was last winter that most of this was done, and my garage then was unheated. It was usually below freezing.
The motor took a while to run better, as the previous owner never changed the oil or filter, or the air cleaner, which was almost plugged solid. The valves were even noisy! Yes, I could hear them over the clatter. Setting them took some noise away.
That's the most of it. By the way, the oil filters here are around $60 for a Wix. Too much. So I looked for a bit on the internet, and cross-referrenced one to a Nissan oil filter. $9.95. Much better. If anyone is curious, I have a part number for it. It fits a diesel Sentra that was here, and it was Isuzu powered.
Sorry for the long letter.