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Q. I have been doing a bit of reading about the use of inline diesel fuel pumps. I have a 2.8TD Rodeo that has 280,000km on the clock. I’ve heard that they have a bit of a weak injector pump and that installing an inline fuel pump could help prolong the injector pump’s lift by not making it work as hard. Would it be worth installing one onto my ute? If so, what sort of specifications as in flow rate should I look for?
A. Pretty true. A typical rotary injection pump on a Diesel has to not only supply the fuel precisely to the injectors it also has to lift it from the fuel tank through all the filters etc. Wear and Tear eventually means the lift pump inside the injection pump can’t do it efficiently anymore and as it slowly loses its ability to suck fuel the main part of the pumps operation suffers with lowering internal pressures resulting in lower fuel delivery and reduced pump advance. Installing a lift pump is a ‘stop gap’ measure only and may work so it’s worth trying. I have seen the older style ‘Facet’ pumps work well by just going for the one with the higher flow. We have used the Holley ‘Red’ pump here. Pretty noisey but works a treat for injection pumps suffering with worn internal lift pumps. Installation seems successful even when mounted up under the bonnet. Just make sure you use all the right fittings, clamps and hoses.