Re: oil pump screen fit
I don't remember how they come from the General, but here's what I've done in the past (and have read in various magazines). First, remove the bypass spring in the pump housing. Install the pump with the pickup tube pressed into place by hand so it can rotate in the pump housing. Place a nut that is about 1/4" tall on the pickup screen (this works if the engine is upside down on a stand - if you're doing this with the engine in the vehicle, you'll have to tape it on the screen) and then install the oil pan. The nut will act as a spacer and the pan and nut together will place the pickup screen 1/4" from the bottom of the pan. Carefully remove the pan (you don't want to knock the pickup tube or screen and have to start over), and mark the relationship between the pickup tube and pump. Remove the pump from the engine. Make sure the relationship between the pickup tube and pump is still correct, and then tack weld the pickup tube to the housing. Make sure you go all the way around the tube so the pump doesn't suck air. Reinstall the bypass spring (you removed it so the heat from the welding won't cause it to relax). Now you can do the final assembly. You might be able to press the pickup tube into place, but I would be worried about it vibrating loose (especially with any off-roading) with disastrous results. I believe Summit sells pumps with the pickup tube welded in for use with stock oil pans, but I don't know if they carry one for your application.