Advertise on Bikeforums.net



User Tag List

Results 1 to 18 of 18
  1. #1
    Senior Member Chombi's Avatar
    Join Date
    Jul 2009
    My Bikes
    1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC (Project)
    Posts
    9,551
    Mentioned
    13 Post(s)
    Tagged
    0 Thread(s)

    Freeze-Off to the rescue AGAIN!! (stuck BB this time)

    Wel,, I left what I think was the last component that would give me some de-insatllation problems on my Vitus Carbone 7 Frame that I am currently restoring. The BB. It has a shimano DA BL7400 BB that looked nice and clean from the outside but felt a little sticky after I took the cranks off. Was debating whether to even touch it, but after seeing the slightly beat up head races on the headset, I figured I might as well tackle at least an overhaul. Got myself a hooked Park Tools lockring spanner. and gave it a tug. Not surbprised that it's not budging, so I started using the trusty ole dead blow hammer to tap the end of the spanner......no go........ gave it some heftier hits.....do dice....plus I'm starting to bung up the lockring too!!.....Dang, it's seized on there! So I blasted the cup with the Freeze off to hopefully shrink it away from the lockring. Got it real cold and wet with the penetrant then tapped on the spanner again. First couple of hits, nothing, then then it started to move! So I got the adjustable side off with the bearings and spindle. So I was left with the fixed cup as my final big opponent to get this frame all cleaned up and dissasembled. I tried to ignore it and possibly put it off till next weekend, but I felt like the thing is challenging me for a fight. Thought about using the vise I have on a sawhorse, but I figure I'll give it a shot with my biggest adjustable wrench and see how things go. Well it didn't budge. Started really pushing on the wrench but stopped lest it slips off and wrecks the frame and the fixed cup. Soooooo it was Freeze-Off time again...... Blasted the cup from inside and out for a good long time to cool it down and shrink it. Put the big wrench on the flats again and said a little prayer. Quite a bit of reisitance at first and almost a slip off the flats, but to my amazement. it started moving! I can't believe I'm getting off this easy, after horror pictures in my mind of the destructive last resort nut and bolt solution for this fixed cup and I was amazed to see some corrosion between the threads and the BB. this shouldn't have come off that easy. All I can think of is the Freeze-Off worked again!
    So now I narrowed down what works best for me for freeing up seized parts on bike frames. forget the Liquid wrench, PB Blaster and WD40, It's just Freeze-Off for me from now on!
    Nice thing I noticed too about Freeze-Off is most of it evaporates away leaving very little oily residue on the bike and parts.

    So if you have given up on PB blaster, Liquid Wrench and maybe even ammonia to free siezed parts, give Freeze-Off a shot and remember to be generous with the freezing blast application. get the part nice and cold and it will most likely come off pretty quickly without or minimal soaking.

    Now I'm still debating whether to go with "Teriyaki" (Shimano DA BL7400) components or "Souffle" (Mavic/Stronglight/Spidel) with the restoration . I'll post a new thread tonight to show what Frech delights I amassed so far for the buildup.

    Chombi
    84 Peugeot PSV
    85(?) Vitus Carbone 7 Plus

  2. #2
    xtrajack xtrajack's Avatar
    Join Date
    Aug 2008
    Location
    Maine
    My Bikes
    Kona fire mountain/xtracycle,Univega landrover fs,Nishiki custom sport Ross professional super gran tour Schwinn Mesa (future Xtracycle donor bike)
    Posts
    2,056
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Where do you get freeze off?

  3. #3
    Senior Member Chombi's Avatar
    Join Date
    Jul 2009
    My Bikes
    1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC (Project)
    Posts
    9,551
    Mentioned
    13 Post(s)
    Tagged
    0 Thread(s)
    I got mine from a local auto parts store (Kragen), here in SF, but I did notice that availability is spotty in some areas.
    They come in real big aerosol can size, which is neccessary because you will have to blast the part you are working to get loos for quite a bit for it to take efftect.

    Chombi

  4. #4
    Senior Member
    Join Date
    Oct 2008
    Posts
    381
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I went out and bought some Freeze Off from my local NAPA auto parts store after reading about it here. I had tried liquid wrench and pb blaster (that stuff reeks!) on my frozen stem. I turned my frame upside down and drenched the inside of the steering tube with the stuff. You could see it bubbling in there. Let it sit for a few minutes and then did some tapping. No luck. Repeated a few times and still no luck. What am I doing wrong?

  5. #5
    DRF aka Thrifty Bill wrk101's Avatar
    Join Date
    Jan 2008
    Location
    The NC Mountains
    My Bikes
    Too many to list, all vintage
    Posts
    18,869
    Mentioned
    71 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by Force View Post
    I went out and bought some Freeze Off from my local NAPA auto parts store after reading about it here. I had tried liquid wrench and pb blaster (that stuff reeks!) on my frozen stem. I turned my frame upside down and drenched the inside of the steering tube with the stuff. You could see it bubbling in there. Let it sit for a few minutes and then did some tapping. No luck. Repeated a few times and still no luck. What am I doing wrong?
    I think you need to freeze the seat post. That would be best accomplished externally, from the top of the bike. Much of the material you are using by spraying it on the underside is freezing the seat tube. That will just make the seat post stuck worse.

    But I would like to hear from the experts. I do not believe there is any perfect solution that will work in all cases.

  6. #6
    Stop reading my posts! unworthy1's Avatar
    Join Date
    Sep 2004
    Posts
    8,386
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    your advice is good, but he's talking about his stem, not seatpost...I'd do the same as you suggest: try freezing just the stem and from the top.

  7. #7
    Senior Member BigPolishJimmy's Avatar
    Join Date
    May 2008
    Location
    Southwest Michigan
    My Bikes
    Fuji Monterey, Schwinn Traveler, Fuji Special Road Racer, Gitane Interclub, Sun EZ-1, Schwinn Frontier, Puch Cavalier, Vista Cavalier, Armstrong, Raleigh Sports, Schwinn Stingray
    Posts
    1,564
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Force, I would try spraying the stem from the top. If it's loose you've probably got that wedge or plug in the bottom blocking the way for the freeze off to actually hit the stem with the bike upside down. I've never used freeze off, but If it's got a straw applicator I'd remove the stem bolt from the top an spray down into the hole around the inside of the stem to try to get it to constrict away from the fork steering tube. Hopefully that will work. Good luck. I'll be curious to know how it turns out. Maybe I'll get some of that myself if it works.

  8. #8
    Senior Member
    Join Date
    Jul 2008
    Location
    Knoxville, TN
    My Bikes
    Klein
    Posts
    907
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Chombi,

    You should contact CRC. THe need you to do a testimonial for them.

    Seriously, glad that stuff is working for you.

    Steve

  9. #9
    Light Makes Right GV27's Avatar
    Join Date
    Apr 2005
    Location
    Green Mountain, Colorado
    My Bikes
    Gianni Motta Criterium, Dean Hardtail
    Posts
    1,521
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've seen it at auto parts stores and I think my local Ace has it. I'll have to try that sometime. I'd seen it but not really looked at it. I figured the name just implied it was for freeing "frozen" bolts - not that it would actually freeze them temperature wise!

  10. #10
    26 tpi nut. sailorbenjamin's Avatar
    Join Date
    Mar 2008
    Location
    Rhode Island (an obscure suburb of Connecticut)
    My Bikes
    one of each
    Posts
    5,498
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    What is this stuff? Canned freon?
    I have spoken.

  11. #11
    Senior Member Chombi's Avatar
    Join Date
    Jul 2009
    My Bikes
    1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC (Project)
    Posts
    9,551
    Mentioned
    13 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Force View Post
    I went out and bought some Freeze Off from my local NAPA auto parts store after reading about it here. I had tried liquid wrench and pb blaster (that stuff reeks!) on my frozen stem. I turned my frame upside down and drenched the inside of the steering tube with the stuff. You could see it bubbling in there. Let it sit for a few minutes and then did some tapping. No luck. Repeated a few times and still no luck. What am I doing wrong?
    What I did was blast it a few times from the bottom first, aiming mostly at the stem, not the steering tube. Remember, you want to freeze and shrink the stem away from the steel steering tube. I then turned the bike rightside up and lifted the already unscrewed headset nut to expose the seam between the stem and the steering tube just aim right above the seam and blast the stem all around it's circumference just above that seam with the stuff using the straw supplied for a concentrated spray, for some time till it really gets cold (this might take quite a bit of spraying. look at the seam real close after blasting it and try to notice if there are bubbles coming out of it (that was the first sign I noticed that I was having success with it). That means that you have cracked the seal formed by the corrosion and the penetrant in the Freeze-Off is getting in there to break the corrosion bond. BTW, Best to do this in you garage over cardboard or a big empty box so you catch all the drippings. After freezing, immediately give the stem a few hits from the top with a dead blow mallet if it doesn't start moving, blast it again at the seam to freeze it up again. I think the warming and freezing cycles will help to "crack" up the corrosion to let in the penetrant oils. and then turn the bike upside down, get a good grasp of the fork crown and hit the bottom of the stem neck, as close to the vertical tube as you can with the dead blow mallet so you are now applying impact to the direction you would want to pull the stem out. Inspect the seam area closely after a few blows with the mallet and try to notice if there is movement. It will start very slowly, but once it starts going you're home free.
    My stem had lots of corrosion that held it on tight to the steerer tube and it definitely was a very major case of corrosvie seizure. That's why I'm confident that the Freeze-Off can handle the worst jobs of freeing up components. The successful removal of my bottom bracket yesterday just confirms it for me.

    Good luck, and tell us how it goes

    Chombi
    84 Peugeot PSV
    85(?) Vitus Carbone 7 Plus

  12. #12
    Senior Member Chombi's Avatar
    Join Date
    Jul 2009
    My Bikes
    1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC (Project)
    Posts
    9,551
    Mentioned
    13 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sailorbenjamin View Post
    What is this stuff? Canned freon?
    I suspect it's mostly CO2 which is also cold, and a super penetrant fluid/oils.

    Chombi

  13. #13
    Senior Member
    Join Date
    Oct 2008
    Posts
    381
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the clarification and other tips. Looks like I wasn't using it the best way. I will give it another shot. I can't wait to get the stem out of there! It's holding up my overhauling the bike. I will post my results. Thanks again!

  14. #14
    Senior Member
    Join Date
    Oct 2008
    Posts
    381
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I could not get the Freeze Off to work on my frozen stem. I bought a new can of the stuff so I would have plenty to use. I flipped the bike upside down and sprayed some into the steerer tube. I then flipped it over and sprayed the stem very liberally above the seam with the steerer tube. I also took the stem bolt out and sprayed down into the stem. The stem was clearly very cold, as frost formed on it and it was very cold to the touch. I held the fork crown and used my mallet to deliver blows up under the stem neck and down on the stem as well to see if I could get any movement. The thing did not budge. I used the entire can trying to get the stem free. I am at a complete loss.

    I read another forum post about someone who had luck when letting PB Blaster soak everything for 2 weeks. Perhaps I will try that. I'd rather not have to cut off my stem, so I am open to anything.

    Question - I can tighten my stem bolt. Can I just ride the bike as is?

    Thanks!

  15. #15
    Stop reading my posts! unworthy1's Avatar
    Join Date
    Sep 2004
    Posts
    8,386
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    There's always plan "C", it's the "final solution" and it's riskier but if you take precautions...use lye to dissolve the aluminum stem. Lye will not do any damage to the steel steerer, or any other steel it comes into contact with, but it will melt the aluminum, and it will ruin paint...not to mention the harm it can cause your skin and eyes, so take care!

  16. #16
    Senior Member Chombi's Avatar
    Join Date
    Jul 2009
    My Bikes
    1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC (Project)
    Posts
    9,551
    Mentioned
    13 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Force View Post
    I could not get the Freeze Off to work on my frozen stem. I bought a new can of the stuff so I would have plenty to use. I flipped the bike upside down and sprayed some into the steerer tube. I then flipped it over and sprayed the stem very liberally above the seam with the steerer tube. I also took the stem bolt out and sprayed down into the stem. The stem was clearly very cold, as frost formed on it and it was very cold to the touch. I held the fork crown and used my mallet to deliver blows up under the stem neck and down on the stem as well to see if I could get any movement. The thing did not budge. I used the entire can trying to get the stem free. I am at a complete loss.

    I read another forum post about someone who had luck when letting PB Blaster soak everything for 2 weeks. Perhaps I will try that. I'd rather not have to cut off my stem, so I am open to anything.

    Question - I can tighten my stem bolt. Can I just ride the bike as is?

    Thanks!
    Whoa!, Almost makes me want to jump in the computer and give you a hand with your stuck stem.
    Must be an even worse case of corrosive seizure than mine, but i can't imagine how much worse it could get.
    As you can see in this pic, the rust was bonded all around the aluminum stem.

    There was just as much corrosion left in the steerer tube when I inspected it, mostly white in color (Aluminum oxide?)
    you said that the bolt is outof the stem, but is the expander wedge still stuck in there?, if it is, you haveto get that thing out because it might still be providing pressure between the stem and the steerer tube, and keeping it from breaking free.
    on my project, I am still continuing to have great success with the Freeze-Off, I think it contributed much to my recently having an easy time removing the top head race and bottom cup from the fram and also the head race from the fork. They weren't budging when I tried my tools on them, but came off in barely a minute after using the Freeze-Off. At this time, PB blaster stll hasn't convinced me that it works on the most severe cases of part seizures on bikes.

  17. #17
    Senior Member Iowegian's Avatar
    Join Date
    Dec 2005
    Location
    Boulder, Colo
    Posts
    1,736
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Force View Post
    IQuestion - I can tighten my stem bolt. Can I just ride the bike as is?
    Probably. It all depends on how much corrosion there is on the stem and steer tube. Unless the steerer or stem has corroded to the point where they've been weakened you can ride the bike as is. How you can determine this without getting them apart is the hard part.

  18. #18
    Senior Member
    Join Date
    May 2008
    Posts
    78
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    WOW. Thanks for the Freeze-Off hint. Worked great on a stuck seat post that I had tried EVERYTHING on! Took less than 5 minutes to get it out. Sprayed it all around the top of the seatpost-seat tube and pulled it out. Best $5 I have spent in a long time.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •