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Charlie, are you saying that you can use the turbocharger with an
unmodified 1.6NA injection pump?  If you have done this successfully,
I'd like to hear the details.  I am in the same boat as Bob.  I have a
1985 Jetta 1.6TD motor and a set of Quantum manifolds and turbo.  I know
that the TD injectors are different, and it's possible that the fuel
delivery valves and pump cam are different also.  I have run my van with
the full Jetta engine installed, but I'm looking for a JX injector pump
to clear the stock engine lid.

I have also considered fabricating the oil drain fitting by
welding/drilling/tapping a regular oil pan, but I have the fortune of
owning a TD Vanagon oil pan.  I would weld before buying one.

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You can use the NA injection pump, but then there is not much point in
having a turbo.  It will work of course.  The Jetta/Golf "Ecodiesel" sold in
north america was configured this way in that it did not have boost
enrichment.

I've used the jetta turbo diesel pump on vanagons.  That was ten years ago,
but as I recall I just cut out one of the ribs on the engine cover to gain
clearance.  Probably involved bending the throttle arm.  But it did fit and
did not rub or touch anything.

Make sure you use the turbo head and block, don't just put the turbo on a NA
engine.

For the drain, I just drilled a large hole in the oil pan and fabricated
threaded fitting with O-ring seals.  Worked fine.  You will need a lathe to
make it.

btw, the 1986 and up turbo diesels were better (improved) than the previous
years.  Not sure of the month cut-off date though.

Gary Lee
http://www.telusplanet.net/public/gary2a/rack/vanagonrack.htm