Help replacing seat stay insert for rack
#1
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Thread Starter
Help replacing seat stay insert for rack
Hi.
Background: When trying to install a rear rack, the threaded insert in one of the seat stay tubes broke free (rotating) and I had to pry it out. So now I have a hole in one of my seatstay tubes. Tube is not compressed or otherwise damaged--just a hole where the threaded insert was. Frame is aluminum. I don't know the tube thickness. I know its an M5 insert
.
Question: I need some help using a threaded rivnut tool I bought from Amazon. My question is how to set the limit/stop lever in the back that controls the pull depth? I am installing a threaded rivnet on the seat stay of an aluminum bicycle.--to hold the arm of a rear rack. The seat stay tube is rounded and obviously I cannot see inside to determine when the flange is compressed. I don't want to pull too hard and compress the threads or worse, damage the aluminum tube. How do I do this without effing up my bike? If I dont use to limit screw, how do I know when to stop pulling?
Thanks in advance.
Background: When trying to install a rear rack, the threaded insert in one of the seat stay tubes broke free (rotating) and I had to pry it out. So now I have a hole in one of my seatstay tubes. Tube is not compressed or otherwise damaged--just a hole where the threaded insert was. Frame is aluminum. I don't know the tube thickness. I know its an M5 insert
.
Question: I need some help using a threaded rivnut tool I bought from Amazon. My question is how to set the limit/stop lever in the back that controls the pull depth? I am installing a threaded rivnet on the seat stay of an aluminum bicycle.--to hold the arm of a rear rack. The seat stay tube is rounded and obviously I cannot see inside to determine when the flange is compressed. I don't want to pull too hard and compress the threads or worse, damage the aluminum tube. How do I do this without effing up my bike? If I dont use to limit screw, how do I know when to stop pulling?
Thanks in advance.
Last edited by Skankingbiker; 05-19-22 at 02:27 PM.
#2
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Stop pulling when it's tight.
Or do it by feel without the tool.
Or do it by feel without the tool.
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#3
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How would you compress the threads? You've got a solid threaded rod in the rivnut...nothing is going to compress. Just go til it's tight and doesn't spin.
#4
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I've never liked RivNut like inserts, but I'm a steel guy
The above advice is sound. But like many easy to do things that one has never done a practice or two helps provide confidence and some experience to judge the actual repair with. Get a few inserts and drill a sheet or tube and set one. Think about how that went and try another.
I have added some epoxy to the frame/insert/hole whern I had concerns about the insert's fit of the ability to compress it fully. Andy
The above advice is sound. But like many easy to do things that one has never done a practice or two helps provide confidence and some experience to judge the actual repair with. Get a few inserts and drill a sheet or tube and set one. Think about how that went and try another.
I have added some epoxy to the frame/insert/hole whern I had concerns about the insert's fit of the ability to compress it fully. Andy
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AndrewRStewart
AndrewRStewart
#5
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Thread Starter
Thanks. Got it sorted