Oil pressure falls

andy

Just got my 3 month project driveable.. So i took it out for a 5 mile spin.. Well now the oil pressure drops to 0 and the light comes on(oil level is fine)... When I start it, its fine..Doesnt drop till Im moving...Im guessing either the screen is clogged or the pump is bad..

Question-- Does the motor have to be lifted in order to remove the oil pan?

Question--Anyway I can clean the screen WITHOUT removing the pan(prolly not)..

.answer 1 - yes

answer 2 - yes... flush the motor with kerosene/diesel.  Do this a couple times but DO NOT DRIVE it while getting the mixture up to temp.
You can also remove the oil pressure sensor at the back of the block and put some compressed air through that galley after the first flush.
Your oil pump pickup looks like this.I followed turbo's kerosine/diesel deal with diesel. It did help me out. And it isn't too expensive. Cheap oil and 2.39$ for 4 quarts of diesel.

.Well I ended up removing the oil pan and the screen and pump were just loaded with sludge.. So I went ahead and replaced the pump.. I cleaned the screen and tube with break Kleen as well...Yes I also cleaned the oil pan and sprayed the bottom of the crank and stuff with break kleen... In a week or 2, Ill do a flush and install new oil filter and oil...