M35A2 SVO Mods (Need Suggestions/advice!)

From: Caleb Pal, Network Operations (sysop@spitfire.homelinux.com)
Date: Sat Jan 17 2004 - 00:11:27 PST


Hello all,

Well I am about to embark on yet another project. I am a senior this year at
a private school, and being a senior means a senior project! Well the idea
is to take a M35A2 and convert it to run on straight vegetable oil. This
involves quite a bit, as the SVO is not thin enough to be run through an
injector pump, injectors, etc. This is where I need some assistance. The
fuel system as far as I can figure out (On a 1971 AMG M35A2 with multi-fuel)
goes from the tank on the passenger side, along the frame rail, then to a
primary filter behind the radiator on the passenger side. From there is
crosses over under the radiator, goes throught the last 2 filters on the
drivers side, and then hits the injector pump. It looks like there is a
small return line on the injector pump back to the tank. Is there a lift
pump? I know most diesels have them, is the in-tank the only real pump until
the injector pump? Basically I will have to have a seperate tank, start the
truck on diesel, warm it up, heater hoses will circulate hot water through
the manifold in the SVO tank, when the SVO is warm eough, a valve is
switched, and the SVO is ran through the engine. 5-10 Minutes prior to
shutdown the switch is flipped back to diesel, to clean out the SVO which
will get quite think when cooled. As far as I can tell with other people
that have done it with cars, they have a SVO filter just for the SVO, then a
3 way switch, the diesel is one input (I think this will have to go after
the 3 filters on the duece) and the SVO is another input. The output goes
right into the injector pump. The source for a truck as being worked on in
the next few weeks, so hopefully that will all go well. Any ideas about how
this could fail or any suggestions are very welcome. The truck will be kept
stock as possible, and the SVO tank will probably be mounted in the bed. If
you have any questions or ideas, please feel free to contact me!

p.s I was looking at some of the kits on http://greasel.com/ for ideas,
seems like they have a good setup.

Thanks so much!

Caleb Pal



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