I know this isn't really a 6.2L question, but perhaps one of you out there has owned one of these, and besides, you guys have more experience with the non-computerized motors, and you seem more resourceful than the guys on the 6.5 TD forum...
Anyhow, I've got a chance to buy a '94 6.5L TD with low miles, and I'm looking for some advice. This particular engine has been modified a bit and is installed in an '82 Suburban. The previous owner removed the electronic injection pump and replaced it with a mechanical one. He also wired the wastgate closed and installed some sort of pop off valve on the intake manifold. There is an aftermarket boost guage on the dash, but no pyrometer. I took it for a test drive and the boost guage never indicated more than 10lbs, even when really getting on it... I'm told that you can turn the knurled knob on the pop-off valve and change the max boost.
What do you guys think of this "pop off valve" setup?
What other things should I look for on this motor?
What other things were probably modified so it would work in this older truck (wiring harness, lift pump, filters, etc.)
Should I even buy this truck, or am I getting myself into a mess?
I've only ever owned 6.2L NA motors, so I've got no turbo experience...
Thanks,
-N.
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