whats up these things work ??it will start cold but ten minutes and warm engine and they suck mmy nuts bench test on 12v and they seem have a poor snap on the plunger what with this spring thing i heard about was no spring on the old one ?? none fell out . no room to fit a spring in with this unit anyway ? if so how to put in spring and unit in without dropping the spring while pump on machine .. loosin my hair on this one argh!!!!!! had to resort to put a monfilament on the feul stop lever and run it out engine hood to manual shut off put back in a m odifid solenoid to allways be in open position !! crap
What you have is not what is in the 580K parts book. Case # 83981012 is what it shows.