Originally posted by tedsmotoguzzi
...... drops to zero this one got me. any ideas ?
You're kinda skimpy on info here, but your use of the word drops implies you have some pressure reading above idle.?

If you answer Henry's questions that would eliminate a couple variables. The other posibility is the pickup is too close to the bottom of the pan and can't pick up oil as it should. The other concept to keep in mind is there is a difference between flow and pressure. If you have flow but low pressure, you've got problems with adequate supply or excessive leakage. If you've got pressure and no flow, then you've got restriction after the point where you're measuring pressure. Or if you have some flow, but poor pressure, then the restriction, if there is one, would be in the system before the pressure sensor.