Hi Lewis.
I’ve always understood that the term Pigrim “Pump” is a mis-nomer, and it is in fact, no more than a metering device. The supply of oil still depends on crankcase depression to draw the oil into the engine. I may be wrong and no doubt some-one more knowlegible than I will put me right! So converting a pump to the pure dripper version should make no difference. The oil in the petrol is a “belt and braces” move.
Dave
