Garage Night Episode 5: Steering head bearings WATCH NOW!

Discussion in 'The Garage' started by wazman, Jul 17, 2008.

  1. wazman

    wazman Been here awhile

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    We're back! In this video we fix Pete's steering head bearings - showing how to drive out the old bearing cups, get the worn-out bearings off the steering post, thoroughly pack the new bearings with grease (important!) and install everything. Please watch and leave some feedback, either here or by commenting at our site.

    <iframe src="//www.youtube.com/embed/_Ozfh93CvBs" allowfullscreen="" frameborder="0" height="315" width="420"></iframe>
    #1
  2. HighTechCoonass

    HighTechCoonass Living the Dream....

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    Fantastic!!!!!!:clap
    #2
  3. Mista Vern

    Mista Vern Knows all - tells some.

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    Nice work, gents! :clap
    #3
  4. Inane Cathode

    Inane Cathode Cheated Anion

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    You forgot the part where you put the upper race where the lower race goes then forget which part of the garage you left the lower race :huh

    Very nice work guys, im impressed proper bearing packing technique was shown, thats not very common information and its really important!

    What i do for steering head bearings is use heat and cold to do the work for me. You do have to smack the old races out of the steering head, but for that pesky bearing on the steering head shaft i freeze the entire unit until its cold through and through, then i put a torch with a fine point of heat right on the inner race on the steering shaft, the bearing just falls off if you tap the shaft on your bench :) I then freeze the shaft and heat the bearing and slip them on. I really dont like to hammer on new bearings, it tends to brunell them before you even use them :eek:
    I also use cold when i put the outer races in the steering head, just freeze em real good, heat up the bore where the races go, and the suckers just drop right in with no hammering :)
    Another neat tip; You wouldnt think it, but pvc is stronger than you would think, you can actually use schedule 40 as a reliable bearing driver as long as you use a deadblow or a rubber mallet and dont go nuts :)
    #4
  5. wazman

    wazman Been here awhile

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    It's a good tip to put the bearing cups in the freezer. I don't think I would resort to freezing anything else, or heating the headstock etc. - but if you've got the facilities and the time, and you want to do the job as delicately as possible with minimum hammering, then why not?

    Though you've got me worried that next time I go for a ride in the freezing British winter all my bearings are going to drop out ... :eek1

    PS - someone mentioned in another forum that a bead of arc weld on the bearing cup will distort it enough to make it pop out easily. It seems plausible but carries an element of risk to the bike's electronics, and by the time you've unplugged everything you probably could have just belted the cups out. What do others think?
    #5
  6. smokinjoe

    smokinjoe hippie kicker

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    Nice job, fellas!!!! Proper bearing greasing isn't something you see very often and I'd say that's part of the problem with newer bikes....that and the fact there seems to be no grease at all in some cases!

    As far as striking an arc on the inner race to get it off......no way in hell! Once you've introduced that current and completed the circuit, all your other bearing surfaces will be junk. It may be possible to run the current right through the inner race itself, but is that a chance you really want to take? :nah
    #6
  7. moriverdirt

    moriverdirt Adventurer

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    nice video, cant wait for the second half of the chain video.:clap

    my brother-n-law showed me a trick (over the phone 2000 miles away) when packing bearings. same general method as the video only difference is you smack the bearing against the palm with the grease. after doing this for a while you will see a perfect bead of grease working its way up between the rollers to the other side of the bearing and out the other side.
    #7
  8. patsymack

    patsymack Been here awhile

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    Great video.I was surprised how easy the inner races came out.I always struggle with these especially the upper one.
    Thanks for taking the time to do this.
    Patsy
    #8
  9. GSBS

    GSBS FunHog

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    Thanks for the easy-to-follow and well-edited video.

    I only wish I'd seen it before I paid a mx engine builder to do the SHB on my 03 Dakar - the first work anyone but me has done on the bike since I bought it.

    The guy forgot or just didn't think it necessary to torque the front caliper bolts when reassembling and after 20 miles one vibrated out. Luckily, when I grabbed a handful of mushy front brake it was at 20 mph on a gravel road and it was the lower bolt that was lost, allowing the caliper to harmlessly rotate forward. Had it been the other bolt it might not have been pretty.

    From that point on (30K miles on the bike - now about to turn over 44K) no one else works on it.

    Thanks again for the Garage Night Series! Great work!
    #9
  10. Bird76Mojo

    Bird76Mojo Bird is the word

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    Nice video! Very informative and helpful, especially for those who have'nt had the pleasure of doing this job already.. :wink:

    GB :D
    #10
  11. leonphelps

    leonphelps TAT/Prudhoe Bay

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    Subscribed on iTunes!
    #11
  12. DirtPony

    DirtPony Adventurer

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    Can not access the video says it has been removed please help as I have to this to my bike over Christmas
    :clap
    #12
  13. D.T.

    D.T. Difficult but useful

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    Clip gone!
    #13
  14. wazman

    wazman Been here awhile

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    Hello all! The clip is back up - I've re-embedded it in the original post. Our original video hosting provider seems to be going down the sinkhole, so we're moving everything across to YouTube ...


    #14
  15. k-moe

    k-moe Long timer

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    They won't. Everything will be at the same temperature, so the tolerances between parts won't change. Using the expansion/contraction of metals by changing the relative temperature of parts that have an interfernece fit it THE preferred method of assembly, when heating or freezing the parts is practical.
    #15
  16. Soldier311

    Soldier311 Long timer

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    Thanks for sharing. I learned some stuff.
    Have you made any other videos?
    #16
  17. wazman

    wazman Been here awhile

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    Hi, thanks for the interest!

    Yes indeed - we have more episodes.

    If YouTube is your preferred route, all episodes have been freshly uploaded right here.

    Here are some of the threads on ADVRider containing our vids:

    How to change a chain and sprockets

    A BMW F650 converted to KTM forks

    All about replacing swingarm bearings

    How to replace spokes and relace a wheel

    And we have a bunch of other episodes where all sorts of things are discussed, from electrics to suspension settings to lubrications systems ...

    Hope the above links are useful and entertaining - we have had great feedback and support from ADVRiders in the past!

    Best wishes - and get out into your garage!
    Waz

    #17
  18. ggoytia

    ggoytia Mobile Fatso

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    Thanks for posting this up and providing link to garage night.
    #18
  19. wazman

    wazman Been here awhile

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    My pleasure, there's always been a great response from ADVRiders to Garage Night. Meanwhile I'm working on further improvements to our YouTube channel and our main site.
    Waz

    #19
  20. ggoytia

    ggoytia Mobile Fatso

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    Wazman,
    Just finished all the episodes and it has helped a lot my neighbor needed help with a stubborn tire. Used the kickstand from my concours told him about your site he said tell them gents thanks! Charged him a whole beer and sent ya guys the cheers from this side of the pond. Now to figure out why my MG California makes a grinding noise when coasting. If ya got any ideas pm me.

    Cheers:freaky
    #20