The crown wheel has been flipped and side flanges are on. I have ended up with a crown wheel to pinion clearance of 0.16mm (0.0063"). I blued the teeth and get a mark just over halfway down the tooth, as in the the picture below. The various manuals and references I have recommend a lash of between 0.15mm and 0.25mm, depending on which one you read. The ERA manual says the correct lash is engraved on the crown wheel. The numbers on my crown wheel are as below. Can I leave my lash at 0.16mm or should I change it? Easy enough to do by playing around with the shims.