PeachParts Mercedes-Benz Forum - View Single Post

JHZR2 · #3 09-04-2003, 02:29 PM

PEH,

Thanks for the quick reply... very informative.

Do you think that it would be ok then to have the two pumps in series when running on WVO, the first near the tank as you suggested, and the second still operating at the IP (some people have been known to somehow take out the fuel pump on the IP on 617 engines).
Im not worried about deadheading the electric pump, nor am I worried now about overpressurizing the IP, but I have to wonder how the main fuel pump will take it if it has a gentle supply of fuel (when running on wvo) instead of relying entirely on suction through the line. Perhaps since it will hyave a bit of 'driving force' it will actually be less succeptible to wear than if I was using it alone with the high load of the unheated WVO making its trip to the heater...

Thanks very much for your help,

JMH

P.S. I never hear about just a fuel pump being replaced. If somehow mine goes bad, what am i looking at for replacement costs? or do I have to replace the whole IP apparatus?