Quote:
Originally Posted by A56
Im gonna suggest leaving the wing tab bolt loose with a little play, this way its a final safety device with either the A/B tab or the spring tabs doing the work until failure, what do you think ?
Thanks
Mark Lelchook
F/SA D/ED
|
Mark,
If the wing tab uses the same hardware show in the link; with the AN363 nut and the AN3 bolt, the assembly will not become loose. It just needs to be tighten snug, without bending the tabs. Leaving it loose, with the harmonics on the exhaust, the bolt will start to wear the hole in the tab.
The AN363 nut is a high temperature, all-metal lock-nut. It does not contain any plastic locking media prone to melting like the stuff you get at the parts or hardware store in commercial lock-nuts.
For redundancy, you can either use two wing tabs for each header, or use one wing tab and one spring tab.
The additional area being welded between the tab and the header should provide more than enough reliability.
If you need more specific technical data on the fasteners or springs, do not hesitate to let me know.