The Ford Barn

[email protected] · 09-28-2021, 02:22 PM

I'm a new guy with V-8 Flathead Fords. I have a 1946 Ford 239 cu. in. which I believe is the original engine with 64,000 miles. Upon starting, I have 40 psi oil pressure at idle and approx. 70 psi at road speed measured with a mechanical gauge. I'm running 20w-50 oil and I have installed the .063 restriction in the inlet side of the oil filter. When the oil gets to operating temperature, the pressure drops to 5 psi at road speed and 0 psi at idle. The engine runs great with no smoke and no unusual noise. I plan to eventually drop and clean the pan and install a fresh oil pump. Any thoughts?

09-28-2021, 02:22 PM	#1
[email protected] Junior Member Join Date: Jul 2021 Posts: 10	low oil pressure I'm a new guy with V-8 Flathead Fords. I have a 1946 Ford 239 cu. in. which I believe is the original engine with 64,000 miles. Upon starting, I have 40 psi oil pressure at idle and approx. 70 psi at road speed measured with a mechanical gauge. I'm running 20w-50 oil and I have installed the .063 restriction in the inlet side of the oil filter. When the oil gets to operating temperature, the pressure drops to 5 psi at road speed and 0 psi at idle. The engine runs great with no smoke and no unusual noise. I plan to eventually drop and clean the pan and install a fresh oil pump. Any thoughts?