Yes, another oil pressure thread.... eaceful:
Since the engine in my BT7 was rebuilt ~10k miles ago, the time for oil pressure to register at start-up feels very long. If the engine sits for > 2 hours, it takes 7-9 loooong seconds for the gauge to move. (Though it then moves quickly.)
Running pressure is fine (50-55 PSI @ 3000 RPM, 17-20 PSI @ 750 RPM, hot).
After short stops (<30 minutes), pressure shows instantly at start-up.
Is there such thing as the oil pump losing prime? I'm running a stock filter set-up.
I did clean the gauge line connection at the engine block (no change), and confirmed on a cold engine it took 3 long starter cranks to see oil at that fitting (though I didn't try starting the engine).
To date I've been ignoring this, but lately (probably because the car is running fine otherwise) I've been perseverating. I was going to drop the sump during the fall oil change. Anything I should look for specifically?
Since the engine in my BT7 was rebuilt ~10k miles ago, the time for oil pressure to register at start-up feels very long. If the engine sits for > 2 hours, it takes 7-9 loooong seconds for the gauge to move. (Though it then moves quickly.)
Running pressure is fine (50-55 PSI @ 3000 RPM, 17-20 PSI @ 750 RPM, hot).
After short stops (<30 minutes), pressure shows instantly at start-up.
Is there such thing as the oil pump losing prime? I'm running a stock filter set-up.
I did clean the gauge line connection at the engine block (no change), and confirmed on a cold engine it took 3 long starter cranks to see oil at that fitting (though I didn't try starting the engine).
To date I've been ignoring this, but lately (probably because the car is running fine otherwise) I've been perseverating. I was going to drop the sump during the fall oil change. Anything I should look for specifically?