Just like to know normal operating pressure at idle as well as @ 2000rpm. My pressure reads as low as 13 psi at 600rpm. Oil qty good. No external leakage evident. At cruise, 1800/2000rpm, it reads 45psi. I read my manual for norm. press. @ 2000 and I am on the low side of that range if not out. It is not clear on idle pressure. Maybe my pump is going???