Quote:
Originally Posted by Timcyn7
Just wondering, why did you fit a lift pump? any reason behind it?
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several things.
one is recovering lost performance. as the pump wears timing tends to retard. the bit of extra pressure helps with that.
the other main one is keeping air out. the injection pump has to lift fuel up from the tank and through the filter. filter restriction causes injection timing to retard, but also air can be sucked in through cracked hoses and filter primer seals. by putting it under pressure any leaks are exposed and it stops air from being sucked in.
also really handy for fuel filter changes. just swap filter, run the lift pump and its all primed and ready to go. no having to use that manual primer.