Wonder if it would be possible to shorten up on the hood supports and re drill a hole in arm so its not exerting so much spring force on hood. Just a thought
It would be better to address the cause of the problem rather than mess with something that probably worked well when new. What you're proposing would be a cut and try process and getting it right would be very difficult. You'll probably wind up with a worse problem. Rivets and hinge bolts can be replaced if needed, but if the holes are hogged out, it would be better to get new hinge assemblies. JMO
