REFITTING ROCKERS. Section 2. From the Mk3 workshop manual.
Engage rocker spindle into the cylinder head with flat facing rearwards on the inlet side and forward on the exhaust side.................
I seem to remember seeing rocker spindles with a simple hole in them rather than a flat. were these genuine ?? And no I aint going up into my cold loft to drag out the box containing a few new ones so as to look.....