Piston ZA Posted February 23, 2018 Posted February 23, 2018 Guys, a little help please: Carbon frame with a graphite seatpost, properly seized up. LBS had it for a day, could not get it out. They suggested spraying with Q20 or similar and a whole lot of patience. So for the last week I've been spraying with Q5 (graphite based penetrating spray), but nothing. I've looked at the other methods suggested above, but will they work, considering its a carbon frame with graphite seatpost. TIA
Patchelicious Posted February 23, 2018 Posted February 23, 2018 Guys, a little help please: Carbon frame with a graphite seatpost, properly seized up. LBS had it for a day, could not get it out. They suggested spraying with Q20 or similar and a whole lot of patience. So for the last week I've been spraying with Q5 (graphite based penetrating spray), but nothing. I've looked at the other methods suggested above, but will they work, considering its a carbon frame with graphite seatpost. TIA but first try using some coke, works wonders.
Piston ZA Posted February 23, 2018 Posted February 23, 2018 Good old Coke always works...Thanks, I'm assuming the best is to remove BB, turn bike upside down and pour in from there?
coppi Posted February 23, 2018 Posted February 23, 2018 Drain cleaner Sent from my iPhone using Tapatalk
Pulse Posted February 24, 2018 Posted February 24, 2018 Coke/drain cleaner/other oxidizers only works with metal seat posts - it wil do nothing for the carbon-carbon combination. What worked for me last year:Remove seat post clamp.Lots of teflon spray. Some have suggested heating (not for CF) the frame or cooling the seatpost. You can try small pieses of ice, or ideally dry ice in an upside down frame.It took me about 5 hours to get it loose. Other suggestions here: https://www.sheldonbrown.com/stuck-seatposts.html
Pulse Posted February 24, 2018 Posted February 24, 2018 Guys, a little help please: Carbon frame with a graphite seatpost, properly seized up. LBS had it for a day, could not get it out. They suggested spraying with Q20 or similar and a whole lot of patience. So for the last week I've been spraying with Q5 (graphite based penetrating spray), but nothing. I've looked at the other methods suggested above, but will they work, considering its a carbon frame with graphite seatpost. TIAAFAIK Q5 is not for graphite/carbon products, but contains graphite. It will break down oils and leave behind a 'protective' graphite layer as it dries. This might be great for locks etc. but NOT for your application. You will get a gradual build up of carbon which will just stick the two (carbon) surfaces together more.Rather stick with a normal penetration oil (Q20), or use a teflon based penetration oil
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