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  • #1

    Seized Engine Reviled

    Well I finally got around to tearing down the seized engine I have that I'm using for parts. As I suspected, the #1 cylinder exhaust valve was open to the air and there was a great deal of corrosion. When I first tried to turn the engine, I only got a short way and it stopped never to move again. It looks like the piston moved up a short way and pushed all the crud up with it.

    My plan is to pull the cylinders and pistons and to reglaze the cylinders. I don't know what I'll do about the rusted valves just yet. My goal is to have the parts refurbished for resale in order to "fund" my project.







    _________________________________________
    1981 XS1100SH (Lola) - Bright Cardinal Red
    Whatever Lola wants, Lola gets.. Don't mess with Lola.
    Mostly stock with a few minor upgrades
    1981 XS11000SH being used for parts (Sold off)

    Also have:
    2009 Harley Davidson FLSTC with over 120K miles. All mine.

    Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road.
    Tags: None
  • #2
    The stuff on the No.1 piston crown does not look like typical corrosion. I suppose some iron could have been transported from the tank along with old gasoline gum. It is a little strange.
    Skids (Sid Hansen)

    Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.

    Comment

    • #3
      Hey Rich,

      That head gasket does NOT look stock....looks like the Cometic type that is used with the BIG BORE KITS!!! You may want to take a caliper to the cylinders and check their diameter, you may find them larger than the IIRC 71.5mm stock size!?

      Folks have recently had good luck with the non-acidic Rust Remover, might want to use that for the valves?

      T.C.
      T. C. Gresham
      81SH "Godzilla" . . .1179cc super-rat.
      79SF "The Teacher" . . .basket case!
      History shows again and again,
      How nature points out the folly of men!

      Comment

      • #4
        Originally posted by skids View Post
        The stuff on the No.1 piston crown does not look like typical corrosion. I suppose some iron could have been transported from the tank along with old gasoline gum. It is a little strange.
        The cylinders are steel that is where the rust is coming from.
        Nathan
        KD9ARL

        μολὼν λαβέ

        1978 XS1100E
        K&N Filter
        #45 pilot Jet, #137.5 Main Jet
        OEM Exhaust
        ATK Fork Brace
        LED Dash lights
        Ammeter, Oil Pressure, Oil Temp, and Volt Meters
        Green Monster Coils
        SS Brake Lines
        Vision 550 Auto Tensioner

        In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

        Theodore Roosevelt

        Comment

        • #5
          Of course. That slipped my mind.
          Skids (Sid Hansen)

          Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.

          Comment

          • #6
            I worked on it for a while today and got the engine turning again. Well, not fully turning. I bring #1 and #4 to top because of the rust on the cylinder walls.

            Worked on trying to remove the cylinders today with no joy. I'll work on it some more tomorrow.

            The gunk in the #1 cylinder red color may come from the Marvel Miracle Oil I used to try and un-stick the engine. It's red.

            As for the head gasket, it's the same as the replacement I purchased so I don't think the engine bored out. I will measure once I have the cylinders off.

            Like I said, my goal here is to remove all the parts from the engine and clean/refurb them for possible re-sale. I'm not putting it back together since I have an operating engine on the other bike.
            Last edited by RichV; 11-21-2013, 08:49 PM.
            _________________________________________
            1981 XS1100SH (Lola) - Bright Cardinal Red
            Whatever Lola wants, Lola gets.. Don't mess with Lola.
            Mostly stock with a few minor upgrades
            1981 XS11000SH being used for parts (Sold off)

            Also have:
            2009 Harley Davidson FLSTC with over 120K miles. All mine.

            Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road.

            Comment

            • #7
              Originally posted by RichV View Post
              As for the head gasket, it's the same as the replacement I purchased so I don't think the engine bored out. I will measure once I have the cylinders off.

              I placed a new Wiseco head gasket from a big bore kit against an OEM one and couldn't see any difference, so don't rely on that as your determination.

              With as much rust as I see in the pics, I don't think a simple hone will work, BUT.. there's always the option of simply replacing that one jug with another good one.
              Try your hardest to be the kind of person your dog thinks you are.

              You can live to be 100, as long as you give up everything that would make you want to live to be 100!

              Current bikes:
              '06 Suzuki DR650
              *'82 XJ1100 with the 1179 kit. "Mad Maxim"
              '82 XJ1100 Completely stock fixer-upper
              '82 XJ1100 Bagger fixer-upper
              '82 XJ1100 Motor/frame and lots of boxes of parts
              '82 XJ1100 Parts bike
              '81 XS1100 Special
              '81 YZ250
              '80 XS850 Special
              '80 XR100
              *Crashed/Totalled, still own

              Comment

              • #8
                Originally posted by trbig View Post
                With as much rust as I see in the pics, I don't think a simple hone will work, BUT.. there's always the option of simply replacing that one jug with another good one.
                I've never done that before. Are you referring to the sleeve?

                I just noticed the miss-spelling in the title. It should have been "revealed" not "reviled" although that's probably true as well.
                _________________________________________
                1981 XS1100SH (Lola) - Bright Cardinal Red
                Whatever Lola wants, Lola gets.. Don't mess with Lola.
                Mostly stock with a few minor upgrades
                1981 XS11000SH being used for parts (Sold off)

                Also have:
                2009 Harley Davidson FLSTC with over 120K miles. All mine.

                Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road.

                Comment

                • #9
                  It might be cheaper to just have that one cylinder resleeved.
                  Check with local machine shops that do engine work and see what they will charge.
                  79 YAMAHA XS1100F
                  2012 KAWASAKI CONCOURS
                  1981 HONDA CB985CR

                  Comment

                  • #10
                    It is pretty easy to freeze out the sleeve and just drop in a sleeve from another set.
                    Nathan
                    KD9ARL

                    μολὼν λαβέ

                    1978 XS1100E
                    K&N Filter
                    #45 pilot Jet, #137.5 Main Jet
                    OEM Exhaust
                    ATK Fork Brace
                    LED Dash lights
                    Ammeter, Oil Pressure, Oil Temp, and Volt Meters
                    Green Monster Coils
                    SS Brake Lines
                    Vision 550 Auto Tensioner

                    In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                    Theodore Roosevelt

                    Comment

                    • #11
                      Originally posted by natemoen View Post
                      It is pretty easy to freeze out the sleeve and just drop in a sleeve from another set.
                      Thanks, I figured it out after I asked the question looking online. Never done it before but it makes sense. The instructions I saw called for heat soaking the cylinders at 400 degrees and freezing the replacement sleeve. You knock out the old sleeve and drop in the new one. Temps equalize and the sleeve is locked in place.

                      Sound right? However, replacement sleeves are usually not cheap.

                      I can replace the whole thing for the price of one new sleeve.

                      Anyway, I'm still going to try to hone them first and see how that goes.
                      _________________________________________
                      1981 XS1100SH (Lola) - Bright Cardinal Red
                      Whatever Lola wants, Lola gets.. Don't mess with Lola.
                      Mostly stock with a few minor upgrades
                      1981 XS11000SH being used for parts (Sold off)

                      Also have:
                      2009 Harley Davidson FLSTC with over 120K miles. All mine.

                      Currently traveling the country with an aluminum can in tow and a motorcycle in the truck bed in search of the perfect road.

                      Comment

                      • #12
                        I set the cylinders in the oven to bake some high temp paint once. I heard a big CRASH!!! and went to the oven to see that the aluminum, which heated faster than the steel sleeves, had dropped down around the bottom of the sleeves like they'd just dropped a pair of pants around their ankles. All you'd then need to do is pull out the bad one, drop in the new and flip the cylinders back over on something flat and let it cool. No machine shops needed.

                        Though, you're probably right. You could probably find a set of cylinders on Ebay for the price of just one sleeve, unless a member on here had a sleeve from a bad motor for cheap.

                        That is... if your cylinders are stock still.
                        Try your hardest to be the kind of person your dog thinks you are.

                        You can live to be 100, as long as you give up everything that would make you want to live to be 100!

                        Current bikes:
                        '06 Suzuki DR650
                        *'82 XJ1100 with the 1179 kit. "Mad Maxim"
                        '82 XJ1100 Completely stock fixer-upper
                        '82 XJ1100 Bagger fixer-upper
                        '82 XJ1100 Motor/frame and lots of boxes of parts
                        '82 XJ1100 Parts bike
                        '81 XS1100 Special
                        '81 YZ250
                        '80 XS850 Special
                        '80 XR100
                        *Crashed/Totalled, still own

                        Comment

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