TR6 Bonnet Issues

[RobinTR]

I have run several searches on the forum, but have not found the information, so I now ask about a pre-used replacement TR6 bonnet that has been chemically stripped to bare metal:

 

1) What is the recommendation to get some anti-rust protection between the inner support frame and the underside of the outer skin; paint somehow, or another other method after painting?

 

2) When new was there mastic or a rubber strip as cushion between the inner and outer elements, or just the primer paint on the individual parts? If factory applied cushion, then how to replicate?

 

3) Both original and replacement bonnets show indentation of the inner support frame at the hinge attachment; the stripped bonnet also has some stress cracking. I assume the weight of the bonnet and rough roads are to blame, maybe aggravated if the bonnet edge rubber wedges were missing?

 

Presumably this damage is common with this design, so other than welding up the cracks, is there any point trying to remove the indentation? For example: try to pull back to the original line (using lever device bolting to the captive plate), or beef-up by welding in thicker metal in this area, or simply add shims between the hinge and bonnet?

 

 

[stuart]

Hmm looks like a pretty poor condition bonnet, Probably been running slightly loose, you would need to do something with those mounts, probably easier to cut and replace the face skin section with new steel so you take the dent out at the same time. As to getting anything in between the skin and the frame then stand the bonnet up vertically front end down and literally pour something like Bondarust down between until you have liberally filled it and leave to dry for a few days. There was a certain amount of sealant between but its difficult to replace now youve had it stripped.

Stuart.