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- #21
If I make the temporary fuel supply with transparent hoses I notice that the fuel return is very very little - close to nothing. It is as if the fuel initially supplied by the priming pump is used used up by the injectors for a minute or so and then the supply pump starts struggling keeping up with the demand with the result that almost nothing goes to the return line because everything is used for the injectors.I would double check this figure. I remember that post and thinking it sounded high. I didnt think the gaskets and seals would have handled that pressure.
Im not sure if its been mentioned, but setting up a temporary fuel supply that bypasses the filter would have told you a lot.