Re: Standard 8 '49 - oil pressure

Posted by Dave Kenney On 2008/2/26 10:01:48

If your engine is holding anywhere near 30 PSI at hot idle with 10W30 oil I suggest you have nothing to worry about. You might want to try an oil with higher viscosity like 15W40 if it really bothers you that it isn't higher. Drive and enjoy the car! On the oil pump located on passenger side of the engine you should see a large nut approx. 1" (25mm) size. Remove the nut and the oil pressure relief spring and a plunger is underneath and should fall out. Put a thin washer into the hollow of the nut and reassemble. Do you get an almost immediate pressure reading from the direct reading gauge? The dash oil pressure gauge on my 47 is slow to respond but the direct reading one at the sender "T" fitting is almost immediate.