Thanks guys,thats what i thought,seems the drive for the pump is provided from a pin on the output shaft locating in a slot on the pump drive shaft. The Pin has been removed from mine so i reckon i can fit it safely without fear of driving it dry.
Still curious as to how the pump supply,s the oil, the book says it 'splash feeds',there is only one inlet pipe connection which i presume is from the tank but cant seem to see where the oil exits

am i being a little thick

any one know the answer
