> >> I am trying to pull the square taper cranks (campy) from my 79
> >> Guerciotti and can't figure the tool to remove the bolts. I removed the
> >> dust caps and am using a park tool crank bolt wrench (14 mm) and it wont
> >> slip down over the bolt head on either side. A 15 mm is too big. What am
> >> I missing here? Probably something simple (like me) but any help would
> >> be appreciated...Thanks
> >>
> >> Todd Grantham
> >> Fort Wayne IN
Hey Todd... Do you mean that the 15mm is to big to fit inside the crank arms hole? Or that the 15mm is too big for the nut... I have had a crank with the first issue, I had to find a socket with a really thin wall to get the bolt or nut out. Sometimes, for various reasons, possibly including original manufacture tolerances, there is not room to get a standard puller in there. I have had this problem before and was lucky enough to find/have a socket set that happened to have the 15mm really thin and barely fit, even when all 4 of my crank pullers would not.
then there are the things so simple I hesitate to mention, such as the head of the bolt being actually 14mm, but so dinged that it would not work with any socket... Or that somebody stuck a replacement bolt in there that might be one of those oddball bolts that are metric thread, but SAE head (maybe a 9/16ths head)... or even re-taped it and the whole thing is SAE now... ya never know.
last resort is to drill that bolt out... if it is a bolt and not a nut, it is easier to have the axle still usable... ;-)
hoe his helps
Thomas Seaman
Portland Oregon
U.S. of A.