First start attempt: no oil pressure...at all

rx4ur7 · 03-23-2009, 07:12 PM

Yes on oil hose routing.
You really shouldn't have to prime it, If they aren't just takes longer to get pressure. Not a bad idea though, I do fill the oil pumps on a build anyway. If the motor was just built, I have seen missing keyways in homebuilds.
When you do Jeff's priming method if you still do not get any oil to the filter disconnect the hose at the front housing and do a short crank. (disable ignition so it will not start, otherwise you will have one h… of a mess if you do have pressure) If you don’t get anything check the pickup, and since you have the pan off check for missing or broken keyway, turn motor over by hand and see if the oil pump shaft is turning.
Will send you a picture of the system schematic when I get in tomorrow. Really pretty basic though, pickup, oil pump through oil cooler to back housing up to oil filter then into motor.

03-23-2009, 07:12 PM	#4
rx4ur7 Rotary since 1972 Join Date: Nov 2008 Location: Tucson Posts: 231 Rep Power: 18	Yes on oil hose routing. You really shouldn't have to prime it, If they aren't just takes longer to get pressure. Not a bad idea though, I do fill the oil pumps on a build anyway. If the motor was just built, I have seen missing keyways in homebuilds. When you do Jeff's priming method if you still do not get any oil to the filter disconnect the hose at the front housing and do a short crank. (disable ignition so it will not start, otherwise you will have one h… of a mess if you do have pressure) If you don’t get anything check the pickup, and since you have the pan off check for missing or broken keyway, turn motor over by hand and see if the oil pump shaft is turning. Will send you a picture of the system schematic when I get in tomorrow. Really pretty basic though, pickup, oil pump through oil cooler to back housing up to oil filter then into motor.