10-11-2021, 10:22 AM
I would expect a standard 3-bearing engine to run up to about 8psi when hot (maybe 2-3psi at tick-over), so I would not be unduly concerned about a 10psi reading. If that jumps to 15-20psi (when hot - 20+psi can be expected when starting from cold) then I would be investigating a blocked jet pretty smartly, but none of these pressures will be sufficient to activate the PRV; my guess is that the PRV is probably set to something like 30-40psi.