Finally got my Mk.3 nearly finished and trying to ensure oil is round the engine before firing it up. I have disconnected the oil line at the rockers and am kicking the bike over with the plugs out until I get oil out of the pipe.
unfortunately, after lots of kicking, no sign of oil. Does the engine have to be running before I'll get oil out of the pipe?
Have you primed the oil line…
Have you primed the oil line to the engine? slacken the junction block bolt and make sure oil is seeping out the joint, then tighten the bolt. (this is outlined in the workshop manual) also covered in the manual is the priming of the crankshaft. especially after the crank has been apart. This is harder to do with the Mk3 (and the manuals procedure doesn't cover this) as the anti sumping plunger effectively blocks the oil passage to the crank. I use a modified rocker feed banjo bolt (and banjo) that has a thin pipe extension to hold the plunger open (assembled before the timing cover is fitted to the engine) then you can use a syringe to prime the crank and oil pump. Also remove the exhaust rocker covers and tip an eggcup full of oil down each valve pocket and hence to the cam followers and cam.
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I would disconnect the rocker pipe at the bottom near the oil feed and return. Use an old rocker feed banjo with some hose and pump plenty of oil with an oil can before kicking over with the plugs out. I also prime the oil lines a bit.