|Need help installing Ultegra 9 crank||Nessism|
Apr 16, 2002 12:27 PM
|Managed to get everything installed but don't have a tool to tighten down the crank extractor cap. The cap has two small holes that I presume some special tool is suspose to fit into to tighten. What a pain.
Does anyone have a suggestion for a work-around on this? Don't really want to run to the shop and ask them to tighten a silly cap.
|re: Need help installing Ultegra 9 crank||Spoke Wrench|
Apr 16, 2002 12:44 PM
|As you might imagine, Park Tool does indeed make such a tool, it's called a pin wrench. You can fake it with an awl or a piece of wire.
When you remove your self extracting crank, the extractor ring will come out with the crank bolt. When you reinstall the crank be sure to follow this procedure exactly:
1. Remove the extractor ring from the crank bolt.
2. Carefully install the crank arms and torque down the crank bolts.
3. Lastly, reinstall the self extractor rings.
I have seen all too many high end Shimano cranks with stripped our threads on the crank arms from improper installation. Don't even ask. Improper installation is not a manufacturing defect and is not covered under warranty.
|Kitchen fork my friend......||AustinTexasRider|
Apr 16, 2002 12:56 PM
|lose the two middle prongs and don't show your wife and don't scratch it.|
|You need help.||grzy|
Apr 16, 2002 1:44 PM
|Actually the 8 mm hex drive on a torque wrench is what you need. You can do the job without removing the retaining cap, but then you better know exactly what you're doing or you'll bugger the splines - then you'll be going to your LBS for a new crank. A pair of small needle nosed pliers will work as a pin spanner wrench - or you can just buy one. If you remove the cap and crank arm bolt you have a much better chance of getting the splines lined up correctly.|
|lining up crank arms||RideLots|
Apr 16, 2002 1:55 PM
|I've found that if you put on both crank arms before installing or tightening the bolts, you are more likely to get them right, as you can observe whether they appear to be 180 degrees apart. If they are 170 degrees, or whatever, it becomes pretty obvious something is wrong before you tighten anything. Just a small suggestion.|
Apr 16, 2002 2:07 PM
|If you get the first one misaligned you can then misalign the other one and strip both. You'd be amazed at how many people manage to screw this up and destroy the crank splines. My concern is that if the guy doesn't know how to deal with the retainer caps he's really going to have fun with the splines. Think of it as a bike IQ test - if you can't figure out the caps then maybe you shouldn't be messing with the crank until you get some help.|
|yup, I see your point (nm)||RideLots|
Apr 16, 2002 2:55 PM
|Do you guys read????||laffeaux|
Apr 16, 2002 2:33 PM
|The guy said that everything is installed, but he does not have a tool to tighten the extractor bolts. Why is everyone going off about how to install cranks? He's done it already. Why are you questioning his IQ? He simply does not have the tool to do the job and is asking for alternatives. What's the big deal? Read the friggin' question he asked.|
Apr 16, 2002 2:48 PM
|Several of us did answer the original question.
When I feel that a little added information might help somebody avoid a $150.00 mistake, I feel obliged to add it on. For what it's worth, I've seen several DA, Ultegra and XTR cranks that were ruined by improper installation. I think that a friendly "heads up" is entirely appropriate. It's a product that requires a little extra care.
Apr 16, 2002 3:28 PM
I was not refering to your post. It's the thread that started with "you need help" and described how to fix a problem that the guy was not having, and ended by insulting his intelligence and saying that if he was having trouble with the extractor bolt, he probably should not be doing the job.
The authors of these seemed to have no idea what the original question asked.
|Thanks for the help||Nessism|
Apr 17, 2002 5:15 AM
|I actually appreciate comments from experienced people regarding these cranks. I've assembled one other bike with a Dura Ace splined BB and don't remember looking for a tool...thus the memory is not what it should be.
I found that installing the crank proper was a pretty straight forward operation: slide on crank arms (cap removed), tighten crank arm bolt, install cap and tighten - damn, what tool do I need this time? Fortunately, a 5/16" allen fits perfectly into the 8 mm hex - I even used a torque wrench to tighten the arms.
Just to clarify from those experienced sorts, what is the big problem leading to people stripping out cranks? Misaligning the splines and tightening anyway?
And how hard is it to remove the cranks for future service? A friend wants help greasing his DA bottombracket - actually it's me that keeps telling him to do so.
|More info, please||4bykn|
Apr 17, 2002 1:50 PM
|I have an Ultegra bb, but havent removed it from the bike. I assume that the bb axle has splines, with one of the splines being slightly differently sized than the others. The splines apparently are close enough in size to make it possible to force it together incorrectly. Is this the situation? For an already assembled bike, could one just use a permanent marker and make a small line to show how the bb was aligned? Also, is grease used on the splines for assembly? Thanks, Mike.|
|How About Needle Nose Pliers?||B2|
Apr 16, 2002 5:18 PM
|If I understand the question correctly. You simply need to tighten the cap with the two round holes. Usually the cranks come with the little "tool" to tighten these up.
If I didn't have the tool, I would try opening up a pair of needle nose pliers so that the distance across the tips matches that of the holes/dimples in the extractor cap and rotate clockwise.
|yup, that works fine (nm)||RideLots|
Apr 17, 2002 3:17 PM