-
-
1982 Chicago Schwinn Continental frame (stripped and fixed)
1987 Cannondale SM500 MTB (Restored and currently on the wall)
1987 Fisher HKeK MTB (Original and in mint condition)
2002 Gary Fisher Tassajara Disc MTB (Current rider for towing kiddie in trailer)
2005 LeMond Tourmalet (Long rides on open road)
2005 Cannondale commuter (loaner bike)
2009 Gary Fisher Triton (Fixed) -
-
-
-
Have this happen periodically at work. Two options when you do come to removing the offending crank.
A. Find a shop with a suitable tap and puller, and get them to cut some new oversize threads.
B. As i did recently, quicker and easier. Get one of these..
http://www.avenue35.co.uk/shopping/shopexd.asp?id=13466
Then remove your chainring. Wedge the fork of the ball joint separator between the B/B cup and the back of the crank with a few persuasive taps from the proverbial hammer.
Then heat the crank with a blowtorch for a good 5 mins. Finally once the alloy has heated nicely hit the ball joint separator with good force and the crank should just "fall off".
Ive used this and found it works as well to remove a crank with the same problem.
I feel a bit ashamed I know exactly how that happend on your crank....... Extractors come with a button for other styles of cranks, yours and mine require the button be removed and I failed to do so once.
-
-
Green will work well but grey will be faster with Ti. No worries though green will be more versatile and can be used for other metals for when the polishing bug bites you. Good choice.
If you want to retain a little brushed finish just don't exert as much pressure on the buff as you would if you are going for a high polish. I suspect you will have better results if you first go for the high polish.
If you have long scratches, polish at a 90 degree angle to them and they will smooth right out.After everything is smooth and uniform add your brush finish with strips of fine sandpaper or scotchbrite. I think the brush finish looks better if whats under it is uniform to start with.
BTW, the green compound on a soft buff can be used to polish out abrasions on carbon gelcoat as well with a very light touch paying close attention to not letting the carbon part heat up in the slightest. I did this on a second hand carbon seatpost myself that was used by a shorter leged person than I. I am certain however that some waranty personage somewhere would be wagging a finger at me if they knew, so I accept no responsibilities if you attempt to polish carbon yourself.
-
Here is an example of brakes I used polishing compound to polish. Granted it is aluminum but the same result can be had with stainless or Ti. http://farm4.static.flickr.com/3409/3412090690_6af170df4a_m.jpg Took longer to disassemble and reassemble them than it did to polish, also was easy to remove deep scratches and casting blemishes as well. http://www.flickr.com/photos/37073270@N06/with/3411283385/
-
-
-
-
Check with a jewelry repair supply house, look for something called 'Greystar' Its a compound used to charge large or small muslin buffs. I use the stuff at work for polishing gold, silver, platinum, stainless steel and even Ti when the need arises. http://www.progresstool.com/pd-grey.cfm You will need some sort of mechanical device that will drive a buff of some sort but if you have access to a bench grinder you can mount a buff like this on it and have at it. Note the size of hole in the buff and motor spindle size when shopping to get the proper fit. http://www.progresstool.com/pd-stitched-muslin-buff-with-shellac-center---6-x-80-ply.cfm That site has other buffs that can be mounted in smaller rotary devices like Dremels and the like if you choose to go that route. Just charge the buff with the Greystar often and you will end up with a highly polished item. BTW, this is a dirty job so try to do it outside or somewhere a fair quantity of black dust would be tolerated. If you go with the smaller buffs in a Dremel like device you will find this setup can also be used to polish rims, spokes (if they are stainless) cage screws, stainless cogs and lockrings and all sorts of other bike parts.
-
Sure, if'n you don't have enough bits on your bars I suppose their is always room for more. http://crca.ucsd.edu/sheldon/bicycle/titanium/titanium-cockpit2-400.jpg
-
-
-
Try a brake block made of softer or different compound. Have not had the problem nor changed any lately but I to remember reference given to Kool-Stop the last time I read something about this annoyance. http://www.koolstop.com/brakes/index.php
-
-
-
-
-

Not much of a project but I did trade out the white stock saddle and bar tape as well as stock 18t freewheel for 15t fixed.