M
Mark Livingood
Guest
I need to install a 7/16 - 20t threaded insert (aka, Helicoil, Recoil,
etc..) for a stripped-out, thread-in pivot axle hole. The frame is 6061
aluminum and the rear seatpost mounted pivot axle supports the rocker for
the bike's rear suspension.
In the past, when I've installed Helicoils in motorcycles, rear derailleur
hangers, and the like I usually didn't use any thread lockers like Loctite
and on the rare occasions when I did I used Loctite 242 (blue - removable).
I never had one back out but, then again, I've never used on a suspension
pivot. Mostly steel motorcycle frames, aluminum engine parts, or steel and
aluminum bicycle frames and components.
It was suggested that I use one of the permanent Red Loctite threadlockers,
e.g., 262 - Med/High or 270 - Max Strength, to preclude the Helicoil from
potentially stripping out in the future. In the past, I've always operated
under the premise that one of the benefits of a Helicoil was being able to
back it out and replace it if it got cross threaded and never thought much
about the ramifications of the Helicoil itself becoming stripped out of the
enlarged tapped hole into which it was inserted.
What's the current thinking of the wrenches who have done frame repairs with
Helicoils of late, and in particular, on suspension related applications?
etc..) for a stripped-out, thread-in pivot axle hole. The frame is 6061
aluminum and the rear seatpost mounted pivot axle supports the rocker for
the bike's rear suspension.
In the past, when I've installed Helicoils in motorcycles, rear derailleur
hangers, and the like I usually didn't use any thread lockers like Loctite
and on the rare occasions when I did I used Loctite 242 (blue - removable).
I never had one back out but, then again, I've never used on a suspension
pivot. Mostly steel motorcycle frames, aluminum engine parts, or steel and
aluminum bicycle frames and components.
It was suggested that I use one of the permanent Red Loctite threadlockers,
e.g., 262 - Med/High or 270 - Max Strength, to preclude the Helicoil from
potentially stripping out in the future. In the past, I've always operated
under the premise that one of the benefits of a Helicoil was being able to
back it out and replace it if it got cross threaded and never thought much
about the ramifications of the Helicoil itself becoming stripped out of the
enlarged tapped hole into which it was inserted.
What's the current thinking of the wrenches who have done frame repairs with
Helicoils of late, and in particular, on suspension related applications?