So I'm attempting to change the primer pump on my not-yet-on-the-road-wife upsetter (240D), and for the life of me I can't seem to get it to come out. Are there any tricks? I don't care if I destroy the old pump, it's bad. I've already removed the lines from the lift pump to provide access to the hex on the primer, but I just can't seem to get anything to it. I'm down to a few major stumbling blocks to getting this thing on the road, and this is one of them. (I also have to adjust the throttle linkage, replace the rear brake line and mount an expansion tank for the 300cd radiator I put in it.)