Re: Low Oil Pressure 356

Posted by JWL On 2014/6/15 13:41:22

Oil pressure of my '47 Custom Clipper was similar to what you described. I shimmed the pressure relief valve spring with a couple of flat washers. This fix increased oil pressure by about 20%. It runs about 50+ lbs at cruising speed (was about 40 lbs) and drops to about 15+ lbs when thoroughly warmed up and idling (was around 10 lbs). Never heard any lifter noise so they were and are getting enough volume and pressure. I run 15W-40 oil. The engine is equipped with a Fram oil filter. I have an auxillary mechanical oil pressure gauge connected as HH56 describes. I still have the original electric gauge connected. It reads a bit pessimistic compared to the auxillary gauge. Try the shimming fix and recommend going to 15W-40 oil and new filter element.

(o{}o)