Hi,
i need to rephrase my question, on a racor 500 fuel filter how do you know which is the input (fuel tank side) and the output. i either assembled the rebuilt fuel filter wrong or i'ver reversed input and outside sides of the filter. I thought i recalled something that showed which is the input side but when it is install i can't for the life of me see which is which. I looked everywhere i can think to look but no luck so far. anyone know of a link that shows which is which or does it matter?