|
posted to rec.boats
|
|
external usenet poster
|
|
First recorded activity by BoatBanter: Sep 2011
Posts: 7,588
|
|
Generator
In article ,
says...
On Sun, 30 Dec 2012 10:21:34 -0500, iBoaterer wrote:
In article , says...
Helicoil in anything adds substantial surface area to the mechanical
surface of the threads, it's just math.
It's still not any stronger than the base metal, period.
It is threaded into a bigger hole tho and that means more base metal
is in play.
The plug itself is steel to steel too, so it will come out a lot
easier while the Helicoil is bound to the aluminum.
I had to helicoil a plug on my Benelli 250. The factory installed plug
came out with the threads still attached to the aluminum.
Yes, there is more contact area in play, BUT, the threads of the
helicoil aren't as deep as a standard ASME course thread.
|