cjenrick

This time stuck in a Vitus plus Carbone frame

Afraid to try anything,.

I sawed of the seat clamp area , I can spin it without too much force but it refuses to move an inch in the upward space/time continuum.

Thanks for any help!

Oh, and it looks like I will need a 23 mm seat post if I get the old one out. Those don't grow on trees either. Heck. Sheldon doesn't even have it listed in his database.

Why did I saw the top off you ask? Somebody tried to jack my seat outside the pool hall and the busted it all up. I used the remains of the post in conjunction with an expander mechanism to pop loose the top tube for a re-glue.

Rubis fluted with internal expander.

Dang. Missed it,


https://bikerecyclery.com/rubis-983-...e-fluted-rare/

smd4

$40 bucks? At that price probably not too “rare.” One will turn up.

FBinNY 

First of all, apply some penetrating oil and let it wick in. Twisting it dry can make things much worse.

Clamp the post in a vice, turned so the post and frame point out from the bench. Now, twist the frame back and forth while pulling it away. Speed isn't your friend here and will only generate excess heat. Instead slow and steady, keeping the pulling force firm.

Patience is your best friend and be sure to watch the temperature.

It should be out in about the time I spent writing this on the cell phone.

SurferRosa

If you can spin the post in the seat tube, but it won't pull out, you need to hammer it out.

If you cut off the top portion of the post, it's going to be difficult to hammer out, so you might have to drill a hole and put a bolt in there or something similar.

oldbobcat

You shouldn't have done that.

cjenrick

i like the hammer idea, i can fab together something like a slide hammer for pulling axles,

i am worried about using oils or other chemicals in fear of messing up the carbon tubes,

i think the expander must have put a small ridge in the bottom of the seat post which is locked into a groove it created in the carbon tube as it was tightened over the years.

thanks for the help!

Mr. 66

I have used threaded rod nut or two washer and a socket to fashion as such. You need to make sure that the socket clears water bottle bosses internally. The washers can slip by the bosses sideways. Slip some oil in, should just pop right out. Honestly I don't think you need to all that, but then I don't have it in front of me either.

KerryIrons

Not an issue. If hydrocarbons were bad for CF frames, then chain oil and thread grease would be damaging them all of the time. Doesn't happen.

cjenrick

Cool on oil thing.

Mr 66 you mean pull the bb, insert 3/8 threaded rod down seat post, attach shallow socket or washers , thread on nut and yank on the other end ok I get it. Thanks!

cjenrick

Ok, old thread that finally came out good,

i used the hammer idea with a twist, i drilled a hole in the seat post tube that was cut anyway, and atached it to a DIY slide hammer that i tigged together,

put a 1/4 20 bolt through the post and hammer and worked it out, one mm at a time. it was stuck pretty good, lots of gunk that aged over time and formed a glue like substance,

no damage to the carbon fiber seat tube,

slide hammer and post and bolt>

cjenrick

and like SMD4 said, "one will turn up"

yes it did, 1 month later, in Belgium, 90 bucks and a month to get here, 23 mm, great shape, and now i have extra parts,

who knows, it might have belonged to Sean Kelley,

problem was, it was not the internal expansion wedge type,

good thing, those things scare me, over torque and you ruin the carbon fiber tube,

so i installed a M6 helicoil , plenty of meat on the aluminum lug for threads,

drilling the hole was stressfull, if you screw up, your seat will be forever out of alignment,

so i worked my way up the drill index, making slight corrections as i went along, either by puttting sideways pressure on the bit or using a small round file, used the top tube cable guides as a ref. came out good.

i also put some fiberglass cloth tape on the inside of the tube to keep it from splintering.

so now i have the new system installed that should prevent another stuck seat post,

and i just ordered a Campagnolo Nuevo Record rear deraileur on ebay (because the Mavic deraileur sucks) , weird thing, seller was Cupertinobikeshop, where i bought the last Nuevo Record from back in 1971.from Spence and Lillian Wolfe. This one is probably from Vance.

thanks for all the help!

cj