Hi,
I just joined this forum. I am currently starting to convert my '84 190D for WVO. I started by re-plumbing the diesel circuit to pull thru the main filter rather than push. My question is: do I need to a return line or some kind of pressure relief between the lift pump and the injector pump? Will the lift pump develop too much pressure if it just pumps directly into the injector pump? Thanks for any input...