Guy. Also uncoupled the shaft from the transmission
and ran engine
through the rev range with no noise
and of course no load. Changed tranny oil
. The old oil
was spotless with no metal residue. A mate did a dive and reported that the cutlass hadn't moved, the prop was on tight and the anode was secure. Used the screwdriver to ear and cant isolate the noise. Perhaps I might get a stethoscope. Cheers.