[Healeys] oil to 100/4 head

[Norman Nock]

Marv ... If you have my Tech Talk book see page 221 "engine oil circulation " 
This shows oil flow in a 100/4 ,its a copy from the factory service manual 
If I had this problem of no oil coming from the oil HOLE in the head with the engine running I would remove the head and see if oil was coming through the oil hole in the block when I cranked the engine ... this will give you the answer ... Norman Nock