QUOTE(PancakePorsche @ Apr 16 2016, 06:34 PM)
10 Lbs is to low. Kinda a common problem on some engines without the highly recommended crankcase oil modification. I get 20-25 hot idle on my 2.7 after the mod.
Without the mod oil pressure relief valve dumps heated oil right back into the pick up side of oil pump causing crankcase oil temps to run high and subsequent low pressure especially on a hot day.
The modification was permanently adopted on the 3.0 and later engines.
I was led to believe on a six 10psi/1000rpm is normal ,however don't know what the normal pressure at idle is,you have stated that pressure....I have done the oil line restrictor mod as per Waynes book is that what you refer to ? I believe you are maybe talking about something else?,please tell more.
boxterfan you jumped the gun on this one and provided info for a 4cyl engine,billys motor is a six.