You are probably quite correct in your assumption - this sort of pump was originally designed to deliver fuel for gasoline systems at low pressure, say 3-5 PSI, which was all carburettor float valve and fuel filter needed.

Your diesel fuel filter will have a significant pressure drop compared to the gasoline type and the pump is then reaching the cut-off pressure and will not resume pumping until the pressure decays sufficiently.

Check other models and types for a higher pressure unit, but also look at the flow delivered as some manufacturers may trade of flow for delivery pressure.

Stanadyne units may be better for you, for example, if you're in the USA. Slurry pumps

2011-06-27

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