You decide how i fix my airhead this weekend!

Discussion in 'Airheads' started by BubbaZanetti, May 14, 2009.

  1. Stagehand

    Stagehand Imperfectionist

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    So weird, I just developed this strange tic on the left side of my face :huh



    :lol3 feelin kinda woozy. Is that nostalgia? :lol3
    #21
  2. ADK

    ADK .......................

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    Push it out next to the road and put a "for sale" sign on it. :deal :D
    #22
  3. Bill Harris

    Bill Harris Confirmed Curmudgeon

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    Yes! Safety glasses are a plus. I had the early-style wire clip sproing me in the eye last Fall.

    The early wire clips can be at PITA to wrestle in with the cylinder in the way, so I prefer to remove the cylinder on those. The later type circlips are easier to work with so on later bikes I pull the piston+cylinder.


    [​IMG]
    #23
  4. Wirespokes

    Wirespokes Beemerholics Anonymous

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    Usually the worst carbon build up occurs during break-in (other than later on when valve guides or rings are shot, or something wrong with the breather): the rings haven't seated yet so oil is getting into the combustion chamber, and there you go.

    It may be clean in there, or maybe not. Most likely not.

    Soaking in carb cleaner helps, but I'm not really sure the best way. I've mostly just scraped the stuff off - it's pretty brittle and pushing on it edgewise with a screwdriver will shear some off. Gotta be careful, though, to not scratch or scrape the aluminum. You want it all smooth so new build up won't have a rough spot to attach to.
    #24
  5. Ron Seida

    Ron Seida Adventman

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    So here's the million dollar question: When you put in the new push rod seals, do you go dry, use gasket seal, or do you use oil or grease :ear I personally use a light coat of grease, and tap in the tubes lightly as they start to leak. I'm at over 40k miles on mine and will be changing them tomorrow.
    #25
  6. Rob Farmer

    Rob Farmer Long timer

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    I've got access to a bead blaster at work. Takes all the hard work out of decarbonising. In the past I've always scrapped it out.

    [​IMG]

    [​IMG]

    Theres no substitute for clean parts. Makes working on the bike a pleasure instead of a chore.

    [​IMG]
    #26
  7. Anorak

    Anorak Woolf Barnato

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    Make it a challenge, only use hammers, chisels and punches. Any parts left over, you have to eat.
    #27
  8. Stagehand

    Stagehand Imperfectionist

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    :lol3
    #28
  9. bgoodsoil

    bgoodsoil Dare to be Stupid

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    here's the ultimate solution to all oil leaks of any sort on your bike--paint the engine black so you don't see 'em :D
    #29
  10. Dirtyboydeadly

    Dirtyboydeadly AKA. Shineyboydudley

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    I took my pistons out as I needed to clean everything up ( Got 80,000 miles on clock)
    I used a bead blaster to clean the muck off and made my own push rod tubes out of stainless steel.

    I used grease round the tops of the tubes and tapped them in with a hammer.
    I think i used engine oil round the rubber seals and no leaks yet.

    [​IMG]
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    #30
  11. photomd

    photomd Been here awhile

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    :rofl
    #31
  12. BubbaZanetti

    BubbaZanetti for a corrector life

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    lol, if you wanna come down an help, you're always welcome:thumb
    #32
  13. Inane Cathode

    Inane Cathode Cheated Anion

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    Re: media blasting

    Just make sure you avoid the valve seats and especially the valve guides when you're blasting. All you need to do is take the finish or god help you significant amounts of material off the ID of the valve guide.
    #33
  14. Stagehand

    Stagehand Imperfectionist

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    Thanks! That actually sounds like fun. I'm thinking of starting a new line of work travelling around helping people forget o-rings! :lol2
    #34
  15. ricohman

    ricohman Marinoni man

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    I may be doing the push rods seals on a 94' R100GS soon, if my buddy buys it.
    I was planning on leaving the pistons on the rods as I could see no real reason for not doing it this way.
    Unless of course there is a lot of buildup.
    #35
  16. Rob Farmer

    Rob Farmer Long timer

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    You will need the patience of a saint and the fingers of a gynaecologist. Good luck.
    #36
  17. Grider Pirate

    Grider Pirate Long timer

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    Depends on the year. Early bikes, heat the piston to get the pin out. Later (I think all the Nikasil) pin floats in the rod and the piston.
    #37