Still working on making a video of the day but here's the clip of the bike starting up. <iframe title="YouTube video player" width="853" height="510" src="http://www.youtube.com/embed/DlIwKctpyw0" frameborder="0" allowfullscreen></iframe>
When you (accurately!) place a bead in the race, the bead contracts as it cools, shrinking the inside diameter of the race enough so that the race may pop out.
Just got a chance to watch the fire shoot out of the exhaust!!! Ah ha ha ha...madness!!! It lives Yeah, I never read his stuff in HS. Not required, wouldn't of understood it anyway...still don't
I used a cat's paw, carpenter's tool for pulling nails. Its a little smaller than your avg crowbar, but same idea. Popped the races right out.
OK. Steering head races removed. Now ... how do you get the old race off the 'new' triple? Same process? The old race on the 'new' triple:
Could you heat the exterior race with your MAPP torch. You may have some success if you can drop some dry ice down the steerer tube. I'd think you want to take advantage of heat expansion/contraction. Whaddya think?
<TABLE border=0 cellSpacing=0 cellPadding=4 width="100%"><TBODY><TR><TD style="BORDER-BOTTOM: 1px inset; BORDER-LEFT: 1px inset; BORDER-TOP: 1px inset; BORDER-RIGHT: 1px inset" class=alt2>Originally Posted by baldwithglasses Could you heat the exterior race with your MAPP torch. You may have some success if you can drop some dry ice down the steerer tube. I'd think you want to take advantage of heat expansion/contraction. Whaddya think? </TD></TR></TBODY></TABLE> This reminds me of a friend who worked for Rolls Royce Aero Engines at Filton in the UK. He was giving a colleague a lift to work because the guy couldnt get spindle out of the front wheel of his bike. They had tried heating and cooling as best they could but it was stuck fast. After a couple of days the guy with the problem comes out of work holding his rucksack very carefully and said to drive home very carefully and avoid any potholes in the road. When they arrived at his house he asked my friend into his garage where the offending wheel was supported between two saw horses. Reaching into his rucksack he takes out his thermos and proceeds to pour the contents down the hollow spindle. Within seconds it fell to the floor. Liquid Nitrogen is wonderful stuff.
In the base of my lower triple, there were two small holes opposite one another. After heating the race, an appropriate size drift was used to tap the race off. It only has to go about an inch. YMMV.
While I REALLY wanted to try the liquid nitrogen route, I just couldn't make it happen. So ... I simply removed most of the 'safety' guards, shields, and such from my bench grinder ... and went to town on it. I was able to expose the complete race to the wheel ... after about 5 minutes of grinding ... I heard a *loud* pop ... and I thought I had broke the cast aluminum triple ... but it turns out that the race was thin enough to fracture under the heat. Then it simply fell off the stem and onto the floor. See the fracture? Cool, eh? Next: The installation of a massive set of forks.