Thanks again Chet!
After rebuilding my engine and cam shaft, I adjusted my 29U pressure relief valve and now get the following:
Cold: 45 psi at pump, 40 psi downstream
Hot: 40 psi at pump, 35 psi downstream
Hot idle: 20 psi at both locations
I think this should be fine now. My 29 Manual states the pressure should be 35-40 psi at normal operating speed, and my factory gagae was set up to read from the downstream port, so it seems to be right on target.
After ths experience, I am convinced that he main bearing wear that most effecs oil pressure is the center cam bearing.
PS - If anyone has a 28Q manual, I would be interested to know what it states the normal oil presure should be, since those engines took the reading from the pump.
After rebuilding my engine and cam shaft, I adjusted my 29U pressure relief valve and now get the following:
Cold: 45 psi at pump, 40 psi downstream
Hot: 40 psi at pump, 35 psi downstream
Hot idle: 20 psi at both locations
I think this should be fine now. My 29 Manual states the pressure should be 35-40 psi at normal operating speed, and my factory gagae was set up to read from the downstream port, so it seems to be right on target.
After ths experience, I am convinced that he main bearing wear that most effecs oil pressure is the center cam bearing.
PS - If anyone has a 28Q manual, I would be interested to know what it states the normal oil presure should be, since those engines took the reading from the pump.