No Oil Presure

[philward]

The oil pump is just not very good at pumping air, if the onward system is resistant (the graphogen is an effective seal in the bearings) it just can't pull the oil into the pump head sufficiently.
By cranking with filter removed it prevents it building air pressure, then once you see the oil arrive into the filter chamber the pump head and pipe both side of it will be purged such that it'll pump the oil easily.
It will usually take only about 30 sec further to fill the galleries with the filter back on.

I'll get on it in the morning - thanks for all your help

[philward]

All sorted - primed pump and took oil filter off until oil appeared - then filter back on, spun motor for 10 seconds and light out. Panic over.
Thanks all

[royhall]

Nice one. It's always a priming problem.

[eight0]

Good info. I'll be needing it very soon!