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valve adjustment assistance and shim request

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  • #16
    Valve adjustment

    Hello all!

    Just a heads up for all you wrench monkeys.

    I'm working on a 81 XS1100H restore and while lapping in the valves, I took off so much during the lap process that I can't get a feeler gauge between the shim and back side of cam lobe while attempting to set the valves.

    The resolution now is to shave the top of the valve stems off to allow enough clearance.

    The seat and valve mates appear to be very good, but lesson learned here is too much could be a bad thing and now it's back to the machine shop.
    KJ

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    • #17
      Originally posted by pcmcse1 View Post
      I'm working on a 81 XS1100H restore and while lapping in the valves, I took off so much during the lap process that I can't get a feeler gauge between the shim and back side of cam lobe while attempting to set the valves.

      The resolution now is to shave the top of the valve stems off to allow enough clearance.
      Why not just get a thinner shim? They range from 2.00 thru 3.10 mm.
      Last edited by bikerphil; 06-09-2011, 10:47 AM.
      2H7 (79) owned since '89
      3H3 owned since '06

      "If it ain't broke, modify it"

      ☮

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      • #18
        Full sets of new shims, boxed, are still available on eBay. About $100. You get two of each through the entire range of thicknesses. I was looking at them yesterday. They're in the US
        XS1100F 1980 European model. Standard. Dyna coils. Iridium plugs. XS750 final drive (sometimes). Micron fork brace. Progressive front springs. Geezer regulator/rectifier. Stainless 4 into 2 exhaust. Auto CCT (Venturer 1300) SOLD. New project now on the go. 1980 European model.

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        • #19
          Originally posted by James England View Post
          Full sets of new shims, boxed, are still available on eBay. About $100. You get two of each through the entire range of thicknesses. I was looking at them yesterday. They're in the US
          Not really a full set. The "full sets" that are being sold usually only have 20 shims in them, not like the picture they use to advertise them. When I adjusted mine, the #4 intake shim was so tall, there was no space there either. I just grabbed the smallest of the other shims and dropped it in there, using that one for the measurement.
          1980 XS850SG - Sold
          1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
          Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
          Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

          Whether you think you can, or you think you cannot - You're right.
          -H. Ford

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          • #20
            shims

            already tried 205 and no clearance, my friends a bike mechanic and he said thats the only resolution he can think of.
            KJ

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            • #21
              IMO, the proper solution is new valves and seats in the head.
              XS1100F 1980 European model. Standard. Dyna coils. Iridium plugs. XS750 final drive (sometimes). Micron fork brace. Progressive front springs. Geezer regulator/rectifier. Stainless 4 into 2 exhaust. Auto CCT (Venturer 1300) SOLD. New project now on the go. 1980 European model.

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