Day 5
Finish off the cowel mounting:
I cut a piece of1/4" ply just undersize of the cowel and sanded to the match the angle of the cowel sides.
Next I traced the inside of the cowel mount ring onto the new support part and cut the inside away to match. Then Drill through the both parts.
Used thick ca to tack glue the new part to the firewall. Do this while it is fitted int othe cowel. Pull the cowel away then drill through the holes into the firewall. i will be using 1/4" nylon bolts to secure the cowel so that sthe size drill I used.
remove all parts, put a good bead of glue between the new support ring and firewall, then with bolts and wing nuts sandwitch the whole thing together. When dry the cowel will pull away leave a perfectly aligned cowel mount.
The wing nuts will be replaced by T-Nuts but I still have to order those!!
The final assembly will use Hex head nylon bolts so a long allen wrench can be used to get beside the tank and secure the cowel. I said it would make sense....
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