WD with low oil pressure

If you have some oil pumping. the pump is primed.

Now.. if your pump is worn, or if there is an oil pressure refief set low or stuck open.. yuo can loose a few pounds there.

If it were me.. I'd replace the gauge. Iv seen upwards of 4 psi difference on vintage gauges to new gauges, on an otherwise 'good / functioning' gauge. In some cases.. 4 psi may be the difference of overhauling it now or waiting a few years.

Next.. I would perhaps try a 40w oil if i were in a warm environment. if you ar ein a cold area.. that's not a good option. next would be to do the cam and oil pump repair.. if the oil pump is easier to get to.. I'd try that first.. with the knowledge that I may have to go back in later to correct the cam issues.

That's general info.. but it has served my well on my small 'fleet' of tractors.

Soundguy

I don't know for sure if the WD has the same bypass type of oiling system as the B and C do but it may. If so, the newer design oil filters marketed by NAPA and manufactured by WIX could be the cause of lower-than-normal pressure. It an easy thing to check first before you dig deeper. See here for background information.

Rod