How do you Dry your WVO..?
Settling is NOT enough, settling will not remove the entrained moisture that will corrode the elements in the pump on a microscopic level. The FFA content also adds to the problem by making this entrained moisture Acidic...
--The running clearances of diesel-pumps are mega-precision and even surface-corrosion of those plungers/elements will mean they become toast....
As a test, When its hot, and the fault occurs, Cool down pump with hose-pipe and try and re-start. If starts reasonably easily, then there is your fault. Pump elements destroyed by 'wet' veggy...
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http://i190.photobucket.com/albums/z...0TDnoplate.jpg
Alastair AKA H.C.II South Wales, U.K. based member
W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.
W114, 1975 280E Custard Yellow,
-Great above decks

needs chassis welding--Really will do it this year....