I have a 1983 3 cylinder Universal diesel in my 35' Ericson, Sketcher.
There is a rubber hose from oil pressure gage-bar to engine. This is just forward of heat exchanger. The small hose then loops over to engine block.
Problem is the termination is below exhaust manifold. Very hard to reach and replace and make sure the clamp it correct.
I had a small leak on the engine end and replaced. But did not clamp the hose correctly....found out when starting the engine, oil every where.
Hopefully no one has a burst from this odd location underway.
Hilco on Sketcher