Thanks for the appreciation. Here is an update from today.
Made the custom O-rings. Also got myself a new pillar drill so I could do a proper job on the countersinks in the front of the distributor plate.
Place the 2 mm cord in the grove cut for it then trim to length.
Put a small dab of adhesive on one end and touch the two ends together.
Sand of the exes glue that squeezed out of the joint once it hardens. Also sand down any mismatch step between the ends.
Apply a thin layer of silicone grease to cover the whole O-Ring evenly.
Push into the cut in the plate. Making sure it wont be trapped at a corner.
You can go around after and clean up any grease smudges with a lint free cloth.
I ended up cutting the countersinks after installing the O-Rings. Not ideal but the pillar drill did not arrive till late.
End result. You can visually see they the gasket is wetting all the way around so should not leak.
I'll try and do a leak test but it may be hard without a pump.
After that install the distributor then I can ship tomorrow.
PC Design Foundry