i did fill the pump when i built it around two months ago so it could easily have run out. i checked my shells this morning and they are standard size, my crank got mesured by an engineering firm when i had it all balanced up and they said there was no wear so the jurnels were polished and new standard shells fitted. I coated every moving part in torco engine rebuild lube so i think i may finish building the engine up , fire it up in conjunction with an oil pressure gauge and hope it picks up, if not, twating sump off again