Nissan Patrol 3.0Di Fuel System

This is another case of someone putting an idea into my head that I thought was worth some consideration. While crossing the Simpson Desert with some friends in 2006, one of the vehicles had some problems with dirty fuel which turned out to be rust particles from a fuel drum. My good friend Whitie came up with the idea to fit a Sedimenter  to his 3.0Di Patrol, which would help to overcome any water or large particle issues in the Nissan fuel filter.

The end result is a Delphi/CAV type Sedimenter without a filter, but it does have a clear glass bowl to see any contamination. Another very handy feature is the miniature ball valve and barb that’s fitted to the outlet of the Nissan fuel filter to help bleed the system and it's a handy point to fit a fuel pressure gauge for testing.

The pump that I chose to supply fuel to the Sedimenter is a Walbro FRD-11, which can flow up to 210L/hour and lift fuel over 3meters. Instead of 4"Hg of vacuum, I now have 1.5psi of fuel pressure to the Zexel Rotary injection pump at idle. The electric pump is “flow through” with a check valve (not a vane pump), so that if the electric pump fails, the rotary pump can still pull fuel through it. This should help to control water and debris from entering the engines fuel system while supplying a steady flow of fuel under pressure to the rotary pump and hopefully improve the rotary pumps durability and longevity.

Fuel Return Line Mod

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