Did my '79 300TD at http://www.lovecraftbiofuels.com last weekend.
Really trick setup, very clean install.  $450 for the parts, $250 for
the labor that I didn't want to deal with.

There's a huge new (primary) fuel filter that goes before the prefilter.
This filter mount also taps the coolant lines, to heat the fuel as it
enters.  From there, the fuel travels into the prefilter, through the
pump, and into the place where the primary fuel filter used to be, but
there's another heater there.  That part wigs me out a bit, but a lot of
people have this setup and I suppose if you're cleaning your own oil you
know it's not going to have crap in it in the first place.  So that
heater takes the coolant out from the primary filter, and coolant goes
back to a tap near the firewall.  Oh yeah, there's another electric fuel
pump installed just before the primary filter now too.

I live in Southern California.  The temperature ranges from 70 to 70, so
running pure veggie oil in the tank year-round isn't a problem.  I'm
already planning an engine teardown, which I may now put off a year. Nab
myself some of those Elsbett injectors while doing the rings. (Leaking
oil out of the breather now which stinks when it burns.  I lose under a
quart every 3k miles though, so it ain't terrible just yet.)

-tom!

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