Help - oil pressure / flow on engine first start.

[Neil D]

Thanks for the advice. I've got it fixed.
The cause was a number of these,
One oil pump vane in upside down which looks like it damaged the cover plate of the oil pump and a bit of the brass dwarf then jammed one of the oil pump vanes in the compressed position, I think it was the one in upside down.
Vanes and springs swapped for a spare set.
Cover lapped to remove the damage.
Swarf removed from oil pump.
Checked for oil at the jet access plugs - all ok.
I now have oil pressure on the starter.

Just need to get the down draft Zenith and ignition timing sorted so it will run for more that a couple of seconds.

Thanks Neil