Hello guys, I am wonder if you guys can help me with my low water pressure issue. I have a 1990 mariner 175 sn# OC254550 and my water pressure gauge only reads around 4psi at WOT. Ran a new water pressure line and also bought a new gauge. I am NOT getting an overheat alarm and she does pee. I have done the following:
1) Replaced the impeller, the 3 gaskets, and the impeller housing
2) Replaced both tstats
3)Replaced the entire poppet valve assembly and torqued to specs
Any ideas on whats going on?
Thanks,