Hi I have a 4JH2E with 3800 hours on it. Uses no oil and starts and runs well. I run on 15W40 Shell Rimula. The pressure gauge failed a while ago which I understand is a common occurance. I have now fitted a mechanical unit. Can anyone tell me what the normal operating oil pressure range is. It reads 48psi at idle when cold, 52psi when running at 2200rpm (the boats sweet spot) and 32psi on idle when hot.
Thanks
Thanks