Quote:
Originally Posted by AOlson
No BS from me... 
A few people have. I learned that if we could drill a 1/4" hole in the center of our TT's it would be much stronger than the solid piece because you remove the fulcrum point (i.e. the center) and transfer the load over a greater area. The problem is we can't drill a hole that long without great expense.
The solution is heat treating. The factory TT's are not heat treated. The issue is that traditional heat treating (horizontal) will cause the the shaft to bend/warp which will cause considerable vibration at 6800 RPM. If you can hang it and heat treat it, you can impart 50% more strength to the shaft and gravity with help you to keep it straight. But it's not easy to find a place to do it.
Luckily the breaks appear to have been anomolies thus far, but eventually it will become an issue for high HP 928's. |
when you look into the expense of it, and then match the cost of replacement to it, you might find it's not worth the effort......
I've got two complete torque tubes w/ good bearings in my pile of parts, and no takers. in this case I suspect it's just easier/less expensive to do a changeout of the whole tt assembly.
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