I have a 2001 Centaur crank and BB on a Cervelo P2K (Not sure if it is English or Italian)
I want to replace with a Chorus crank and BB. I can save over a $100 on parts and labor compared to my LBS if I do it myself, so what the heck. I learned how to changeout casettes myself last year, so this will be a new proficiency.
What tools do I need (crank puller, BB tool?, ie what specific one as I think campy has special tools for each group in some cases). Any potential pitfalls with this operation.
The campy BB tool is the same as the campy cassette tool. You will also need a crank puller. It is pretty easy to do. After installing the new crank make sure to check the crank bolts afetr a few rides.
Your Cervelo is English thread. The chorus and record bb’s use the same tool as your campy cassette. However I think that back in 2001 the centaur bb used a different tool. That said it is a very simple change if you have the correct tools. Here is what you will need.
A torque wrench (very important)
A campy cassette/bb tool for the chorus bb
A campy centaur bb tool
A 8mm Allen that fits you torque wrench
A Crank arm puller.
First, unscrew the 8mm crank bolts that hold the cranks to the bb. Then using the crank arm puller remove the crank arms.
Second, using the centaur bb tool unscrew the bb. On an English threaded bb like your the drive side unscrews CLOCKWISE and the non-drive side unscrews counter-clockwise.
Third, grease the threads of the new bb and using the campy cassette/bb tool install the bb from the drive side first. Torque the drive side to 70nm and then install the non drive side cup and torque to 70nm.
Forth, grease the bb spindle and slide the crank arm on. Next grease the crank bolt and using the 8mm alen on your torque wrench tighten the crank bolt to 38nm. Note that greasing the bb spindle is a debate. Most instructions tell you not to however if you are using a torque wrench then you will not over-tighten the bb bolt and split the crank. If you are not using a torque wrench it is easy to over-tighten the bb bolt on a greased spindle and split the crank arm.
Finally, check to make sure that the front derailleur adjustment is still correct.
I actually have Daytona cranks (I forgot they used this name for like one year), as you mentioned I will two different tools (one to remove old and one to install new, because Campy is whacko with regards to their tools ($99 chain tool, compared to a $15 for Shimano, WTF?). Any idea, where I could purchase the centaur/daytona tool?
BTW, what do you mean by “split the cranks” ? Do you literally mean the crank arms will split (like a piece of wood) can’t imagine how anyone could overtorque something that much?
Park tools makes tools for campy components and they are fairly priced. Try www.excelsports.com for a good mail order tool source.
Yes it is possible to split cranks that mount on a tapered spindle. If you are using a long socket wrench it can be done with a lot less effort then you think. I have seen it done.
Why is your shop charging you that much? I’m thinking they are quoting a price to face and tap the bb shell. If you already have a bb installed w/o issue, this does not need to be done. Any compitent mechanic should be able to install a crank and bb in 10-20 min = $15-30.
Buy the parts and have you mechanic install them. One major potential pitfall to doing it yourself: over-torquing will damage your frame. Otherwise, it’s pretty easy, but the tools are going to cost you that same $15-30 you would pay your mechanic.
The shop quoted me $230 for the cranks, and $75 for the BB and $30 for labor. Total $335.
I just ordered the cranks ($150), BB ($45), and BB tools for both centaur ($8) and chorus ($8) from Nashbar and with shipping spent, $223. Even when I buy a torque wrench and crank puller, I will still be up $50 and have a bunch of new tools. Some times it just pays to do it yourself. Of course it helps to have people like you guys who give free advice;)
I don’t feel bad about mail order. I went to the LBS and got offered a really bad price. When the prices are reasonable, or it is a clothing item I need to try on, I use the LBS.