Hi,i have had a lot of trouble with the oil
pump on my perkins
4107,twice the oil
pressure relief valve opened and would not reset,i stripped it down and came to the conclusion that the spring was weak,so i made a spacer 3/8"long,reasembled it,fitted it and hey presto no oil pressure,removed it made a drive shaft with a 1/4"tang to fit in the end of pump shaft,to power it with my power drill,set the pump in vice and at 1000 revs had oil pressure,so i now have oil pressure on the bench but no pressure in engine
,i only wish i could afford a new engine
,iam really pissed off,any ideas? Ronnie.