Busy day today, so not much done to the Morgan. I did manage to take that Series1 specific nut & bolt out. It's unusual in having a 13mm bolt head and a 17mm nyloc nut.
This shows the sump flange with the bolt out, and you can see that the casting has been thickened up for the extra hole. You can also see that the bolt has chased some threads in the alloy. I'm guessing that the hole was drilled after the engine & gearbox were mated (from the rear). The hole is slightly undersize for that size bolt.
Here I'm using metal foil from a wine bottle to make a template for when I drill the extra hole in a spare sump. This foil is just right for keeping shape, so it can be moulded round the holes to transfer the location. More will follow on this next week.
