I've been using this truck all summer. The pilot bearing in the flywheel is going very bad, so its definitely time to get serious about the ALH swap.
I got my donor ALH mk4 jetta running well. It would start fine, but stumble a fair amount and make smoke that smelled like fuel. I suspected bad injectors or a failing pump. I bottle fed it some diesel purge, and it immediately improved. I think the fuel filter or fuel pickup is restricted in the car.
Tested the group 13 numbers, they were decent. It still looks like the injectors are somewhat worn, but the car runs smooth and no smoke.
I tested compression, I got 500 470 505 480. Not the closest numbers I have ever seen, but good enough to consider things healthy in my book. I suspect this engine is highly sooted up. I will be pulling the head and cleaning all the ports and valves before putting it in my truck.
I also got the adapter from Randy at TD Conversions and test fitted it. I also got his new heavy 22re flywheel that is machined to fit the larger 10" tacoma clutch. I have a centerforce 10" clutch in there. The clutch has centrifugal weights that apply more clamping force as RPMs rise. Interesting setup. I am a little concerned about those weights rattling around at idle. We shall see.
Below is the adapter setup fitted to an AHU block I happened to have in the shop. Everything looks good!
Scrapping a MK3 that I parted to use the cylinder head on my TDI audi. Towing weight with the 4 cylinder tacoma is pretty funny. Pinned all the time.