The oil presure light is intermitentley on and the electrical oil pressure gauge is not showing any pressure. The oil in the sump is at the correct level .
I am getting a mechanical gauge for next week end to temp screw in to oil pressure switch tapping (what is this thread). What is the normal running oil presssure for this engine. I can sort out instrumentation problems. Are there any Known problems for no oil pressure on this engine?

John Anstiss, July 2010