Thread: 406 low oil pressure
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12-14-2009 05:43 PM #1
406 low oil pressure
I was wondering if anyone might want to weigh in on an oil pressure issue.
Here's the details:
.030,forged flat tops, dart 215 aluminum pro 1, hyd roller 236/242 .560/.578 108 lsa, king bearings .002 on mains and rod clearances, scat rotating assembly, milodon/high pressure/high volume oil pump, moroso 6 qt pan with baffle and matching pick up.
I measured about 3/8 inch from pickup to bottom of the sump.
When cold, oil pressure idles about 40psi
When warm, it idles about 5-8psi and revs to about 25. No knocks or low end noises and the roller rockers and valve train seem to be getting plenty of oil.
also, I have checked with another mech gauge and it reads the same..
All oil galley plug put in by my reputable machine shop which i have had sucess with in the past.
I was thinking about changing the pump but wanted some inputs or ideas first. Any help is appreciated.
Dammit, another good ol boy gone. Condolence to the family. RIP Mike
RIP Mike Frade, aka 34_40