sanded the oil door filler back, then took the upper cowling off. Shim made for a section of the skybolt flanges to allow a better fit between cowling and upper skin. Skybolts locked into position, fit checked, then cowling removed. more sanding of the gap between the oil door and cowling.
sanded down the first attempt at the fixing for the hinge pin cover as the first was a bit crude. Im maing aluminium ones tomorrow.