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TR6 TR6 Hub Safety

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SCguy

SCguy

Jedi Warrior
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As I mentioned I've had to put Heli Coils in my rear trailing arms to attach my hubs. Infact, I have five Heli Coils in one hub and four in the other (not all installed by me). Tinster got me thinking so I went back and re torked <u>everything</u> successfully to 15 poubds. Am I Ok?

Should I start looking for new trailing arms? Is there a better than new fix?
 
Hello Larry,

I have always understood that a helicoil in aluminium is stronger than the original tapped hole.

Alec
 
Hey Larry,
I have most of mine HeliCoil-ed and am comfortable with the result. Pulled them both down a while back and everything looked quite snug. I wouldn't worry about it. The chances of finding a new-to-you trailing arm that is any better than what you have are slim. I feel that that particular design (fine threaded bolt into aluminum) was poorly thought out and your fix is as good as it gets.
 
I also have heli coils and do not worry about them coming out. Now if I had Pedro do the job, I would be worried.

Also keep in mind that Tinster lives in a humid salt air environment. If ever there was a place that for steel and aluminum to interact over time, he has found it.
 
Hey Bill,

I have to agree with you on the fine threads in aluminum
being a basic design blunder in the originals.

In my world of hurricane screws, going from a #14 to a #15
increases pullout in the neighborhood of 20 to 25%.

Only a slightly larger diameter but much deeper "bite"
from the threads.

d
 
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