[john charlton]

When you drop the pan the oil pump will drop out with it . The oil pump is held in place by a spring attached to the bottom .The pump has to come out anyway so you can take it apart and clean especially the gauze filter screen . You will find a brass plug that is screwed into the block this is an NPT thread . There is no need to remove this when you put the pan back on it has been there for over 90 years and does not leak anyway . I loop a cable tie through the nearest pan bolt hole each side and around the backside of the pump "stalk" .Pull the cable tie tight and it will hold the pump in place . Offer up the pan and when the pan is nearly bolted up snip the cable tie and pull it clear . This saves you the bother of finding a suitable NPT plug to secure it or the funky tool the parts houses sell also cable ties are way cheaper !!! To pop out the dipper tray drop it open side down on a hard surface from shoulder height NOT concrete .It might take several goes but it will pop out .A lot of gunk will spill out so use a disposable curtain or whatever for easy capture and cleanup .

John in sunny morning Suffolk County England .