Frozen quill stem
01-13-16, 11:25 PM
#26
Senior Member
Thread Starter
Picture this. The goal is to be able to swing the frame over your head like a pick ax and down onto the 2x4 so when it hits the ground, the impact is delivered up against the bottom of the stem. You're tying it to the fork for stability so it doesn't go sideways on impact, and also so it doesn't fall off and have you slamming the fork into the pavement.
This works based on the inertia of the frame stopped by the stem, in a way similar to how body shops use slide hammers.
BTW -- be sure to do step one -- pushing the stem in a bit -- first. Driving it out by this method, puts tension into the top of the steerer, and if the bonds are strong, can tear the fork apart at the threads.
This works based on the inertia of the frame stopped by the stem, in a way similar to how body shops use slide hammers.
BTW -- be sure to do step one -- pushing the stem in a bit -- first. Driving it out by this method, puts tension into the top of the steerer, and if the bonds are strong, can tear the fork apart at the threads.
01-13-16, 11:29 PM
#27
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It doesn't have to be, and shouldn't be rigidly attached to the fork. Just secure enough to stay put. You could use light rope in a figure eight pattern, going around the back of a blade, front of the block, behind the other blade, then around the front, behind the block, and so on. Do that twice, at the top and bottom of the fork, or anything similar that works for you.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
01-14-16, 03:38 AM
#28
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I can understand some people think my approach was BAD one of course is never sure the amount of how shall we say "engineering knowledge" previous experience, & of course tools at hand, are you in a large garage hobby shed etc, or living in a flat, working on the kitchen floor doing your 1st bike.
Of course extreme force will result in the weakest link giving way, one has to understand the "philosophy" its NOT going to budge & then think of plan B before something breaks. I've done it twice recently without destroying or damaging anything, but there has to be a point when one would say
"time to try something else"
Of course extreme force will result in the weakest link giving way, one has to understand the "philosophy" its NOT going to budge & then think of plan B before something breaks. I've done it twice recently without destroying or damaging anything, but there has to be a point when one would say
"time to try something else"
