My new project is giving me lots of unexpected treasures to figure
out, but, maybe I am an idiot and attrtacting lights.

The oil light was flashing on and off and didn't go off until I revs
reached 4K yesterday.

Today, after MOTOR FLUSH was introduced, all oil was drained from the
sump.  Almost a litre of LUCAS was added then filled with 20/50
Pennzoil.

Started up and the idiot light was flickering off just about 3/k revs.

My instincts tell me to replace the oil pressure sensor switch but
locals tell me it is a bear to change.  Anyone out there who have had
a similar challenge and what did you do?

The engine pulls well and doesn't show any oil/water being emitted
from exhaust.

Suggestions please.

Peter
Naples