Bicycle Mechanics - stripped threads on campy crank - HELP!

hi there,
my roommate said i can have his OLD and RUSTED bike frame in exchange for the use of my truck for the weekend. the frame is in pretty bad shape, but what i want is the crank. it's a very nice-looking campy crank. not sure about the exact model or year, but it says "STRADA 170" on the inside of the arms, along with a diamond with a 3 in it. sounds good, except i THINK i may have damaged the threads on the non-drive side when attempting to remove it from the BB using my "universal" crank puller from supergo. do campy cranks have their own thread size? i screwed it in about 1/3 of the way before stopping myself because i realized something didn't seem "right", it felt like maybe i was stripping the threads on the crank. is there anything i can do? if it helps, i can upload pics later.

thanks in advance!

hi there,
my roommate said i can have his OLD and RUSTED bike frame in exchange for the use of my truck for the weekend. the frame is in pretty bad shape, but what i want is the crank. it's a very nice-looking campy crank. not sure about the exact model or year, but it says "STRADA 170" on the inside of the arms, along with a diamond with a 3 in it. sounds good, except i THINK i may have damaged the threads on the non-drive side when attempting to remove it from the BB using my "universal" crank puller from supergo. do campy cranks have their own thread size? i screwed it in about 1/3 of the way before stopping myself because i realized something didn't seem "right", it felt like maybe i was stripping the threads on the crank. is there anything i can do? if it helps, i can upload pics later.

thanks in advance! The threads on that crank are standard. Are the threads clean? Have they been previously buggered?

do you have the "pusher" bit of the puller undone enough?

Do the threads look ok?

hi there,
my roommate said i can have his OLD and RUSTED bike frame in exchange for the use of my truck for the weekend. the frame is in pretty bad shape, but what i want is the crank. it's a very nice-looking campy crank. not sure about the exact model or year, but it says "STRADA 170" on the inside of the arms, along with a diamond with a 3 in it. sounds good, except i THINK i may have damaged the threads on the non-drive side when attempting to remove it from the BB using my "universal" crank puller from supergo. do campy cranks have their own thread size? i screwed it in about 1/3 of the way before stopping myself because i realized something didn't seem "right", it felt like maybe i was stripping the threads on the crank. is there anything i can do? if it helps, i can upload pics later.

thanks in advance!

If all else fails heat the crank by pouring boiling water over it. (Not in your living room please; outside is safer.) Aluminum expands at a greater rate than steel when heated so it will expand away from the BB spindle. Next drive it off using a piece of wood against the crank; hit the wood with a hammer. This crude but effective method will work as a last resort.

This also works on frozen in seat posts and handlebar stems. But the difference here is after heating with the boiling water it will expand making it even tighter. So allow to cool completely before attempting to remove. The effect of the stem or seat post expanding and contracting again is often enough to free it.

Check my website: http://www.ProdigalChild.net Click on Bicycles for pictures and tech stuff.

I have a crank tap that uses a guide fitted to the axle to keep it straight. It works pretty good if you have slightly screwed threads. Your local shop should have one in the service area. You might even still be able to buy one if you like having tools you will lose by the time you need it again in five years :)