I have an oil preasure guage on the dash and a clear pipe coming from it that has been chopped off in the past. Where does the other end come out the engine? Reason I ask is it is loosing oil (yeah I know it's a series thing!) but I am guessing oil goes up the pipe to make the guage work? If the pipe has been chopped then oil will come out the chopped end of the pipe. If I could find the end I can blank it off somehow!

Cheers

usually from oil filter head

t piece by oil pressure switch. most likely removed.