78 GS1000 head gasket question

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • crackerman
    • Feb 2026

    #1

    78 GS1000 head gasket question

    Hey now,

    Just had my top end rebuilt and got a full gasket kit to replace the head gasket. My question is there's 4 rubber O rings that go around the 2 outside studs. Should I put them on under the head gasket or on top of the head gasket. Which side of the O ring goes up. One side has like a yellow ring around it and other side is all black or does it even matter? From the old gasket it looks it just gets squished in there anyway. Any advice would be helpful.

    Thanks

    Old head gasket:


    New one with new O rings:


  • rustybronco
    Forum LongTimer
    Bard Award Winner
    GSResource Superstar
    Past Site Supporter
    • Jul 2005
    • 14961
    • Marysville, Michigan

    #2
    If it were mine I would put the head gasket down first and then push the o-rings 'into' the copper washer. If they stay in place go ahead and put the head back on being careful not to dislodge the o-rings. If they don't stay in place, put a little Indian head shellac or similar on the copper gaskets, let it dry for a bit then push the o-rings into place.

    I wouldn't worry which side is up or down in regards to the yellow coating. Put them all one way or the other.
    De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

    http://www.thegsresources.com/_forum...35#post1625535

    Comment

    • Guest

      #3
      Dale's right, on top. Use a dab of a high heat gasket maker to keep them in place. You'll have to watch them as you lower the head down to make sure they stay in place, along with all the other o-rings.

      Comment

      • Chris G

        #4
        Do the o rings come with the gasket, or are they separate items looking at the parts list previously for my 850, they don't appear to be a separate item

        Comment

        • mvalenti
          Forum Mentor
          • Nov 2009
          • 748
          • Haverhill, MA

          #5
          flip flops in the shop?

          BTW... North of Boston as well..
          -Mark
          Boston, MA
          Suck Squeeze Bang Blow..
          sigpic
          1980 GS850G with 79 carbs.....

          Comment

          • Guest

            #6
            Originally posted by Chris G
            Do the o rings come with the gasket, or are they separate items looking at the parts list previously for my 850, they don't appear to be a separate item
            He's bought an aftermarket gasket kit, the o-rings come with the kit. Vesrah kit most likely. Won't catch me buying one of those again.

            Comment

            • crackerman

              #7
              Originally posted by mvalenti
              flip flops in the shop?

              BTW... North of Boston as well..
              Yes balls hot and humid in my garage.

              Picked up some Indian Head gasket stuff and got the head torqued down. Now I'm trying to figure out how this thing goes in. It's like a puzzle and I've try a bunch of combinations but can't figure it out. The book is useless too.

              Any know how this thing fits in? I know it goes between the cams, just not sure how.

              Comment

              • crackerman

                #8
                Head gasket

                Never mind. When in doubt, google it. Google timing chain and figured it out from the parts list.

                Comment

                • Eli69
                  Forum Sage
                  Past Site Supporter
                  • Aug 2005
                  • 4856
                  • Wyoming County, New York

                  #9
                  that piece fits right between the cam sprockets and carries the chain to keep it from flopping around. the arrow points forward and the top will be even with the bottom of the chain stretched straight across. it basically just drops into place, there's nothing to connect it to. there is also a chain guide above it on the valve cover i think.
                  2002 bmw r1150gs 1978 gs1000E skunk les pew 1982 GS1100
                  1980 gs1000G the ugly RLAM

                  Comment

                  Working...