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  • #16
    I was looking at bike bandit ricing the stem seals and base gasket. Do I need the (4)O-rings around the cylinder sleeves too?
    Pat Kelly
    <p-lkelly@sbcglobal.net>

    1978 XS1100E (The Force)
    1980 XS1100LG (The Dark Side)
    2007 Dodge Ram 2500 quad-cab long-bed (Wifes ride)
    1999 Suburban (The Ship)
    1994 Dodge Spirit (Son #1)
    1968 F100 (Valentine)

    "No one is totally useless. They can always be used as a bad example"

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    • #17
      Yep.

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      • #18
        You get higher compression with a wiseco 1196, dunno if it's piston shape or volume or whatever, the 10.25:1 is probably from the wiseco head gasket, shut the throttle down at 3000 revs in 1st gear and you know what I mean by compression, you can feel the extra torque at low /medium revs. Mine reads 180 -190psi.

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        • #19
          .. how thick is the wiseco head gasket? and wouldn't a thinner base gasket help to make a difference?
          has anyone considered making head gaskets out of a .032 or .035 thou inch thick sheet of copper[would have to take into consideration some kind of crush factor]?
          If you do nothing but the Big Bore you'll likely see 9.5 or there abouts
          .. this sounds about right, my big bore bike was kick only and i never had any trouble kick starting it, even when i was sh!t faced. it didnt feel like it had any great compression bump either.

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          • #20
            Not trying to be a &quot;Big Bore&quot; but

            oriiginally posted by Pat Kelly
            Do I need the (4)O-rings around the cylinder sleeves too?
            O-Rings comes with gasket set.

            Crank shaft seals DO NOT.
            While reusing the original seals will work(not leaking??!!), if your going that far should find some new ones.................(cam chain too )



            mro
            Last edited by mro; 08-22-2006, 01:22 AM.

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            • #21
              Gene

              The gasket in the Wiseco is about the same as the OEM. That being .050 to .045.

              pggg - one reason my pumping compression is lower is due to the honkin intake cam. The thing is open (more duration) far longer than the stock cam.

              Have you ever done a leak down test? This will tell you how well the cylinders are sealed. Also how many miles do you have on that Wiseco kit now?

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              • #22
                Max, never have done a leakdown test, I've done over 50,000 kilometres(over 30,000 miles) on these wiseco pistons, compression has never dropped from day one(around 180 psi) - had the valve train reconditioned, seats cut, valve seals etc.. when I got the head skimmed and ported about 30,000 kilometres ago. Motor DOES run hotter than stock, but ain't an issue at all for these motors

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                • #23
                  I ordered the 1196 kit today. Yosemite Machine will be boreing my XStra cylinders when the kit arrives.
                  Then to wait for a rainy day to start working on the bike.

                  On to another question: breaking-in the rings (oil thread ). Should I use a straight weight oil for scrubbing-in' the rings or my usual 10-40? I know with cars a straight weight is recommended.
                  Pat Kelly
                  <p-lkelly@sbcglobal.net>

                  1978 XS1100E (The Force)
                  1980 XS1100LG (The Dark Side)
                  2007 Dodge Ram 2500 quad-cab long-bed (Wifes ride)
                  1999 Suburban (The Ship)
                  1994 Dodge Spirit (Son #1)
                  1968 F100 (Valentine)

                  "No one is totally useless. They can always be used as a bad example"

                  Comment


                  • #24
                    As long as it's a good quality mineral oil it doesn't matter.

                    The fella that rebuilt mine put KawaChem 20w-50 in Zilla. I ran it for 100 miles...drainied it and put Valvoline 20w-50 4 stroke motorcycle oil in it. At about 500 miles I wasn't seeing the compression numbers I wanted so I tried straight 40 weight Valvoline Racing oil.

                    Dunno if that did the trick but my compression increased significantly after 1000 more miles on that.

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                    • #25
                      Pat,
                      The straight weight oil, non detergent, is what I would use for the first 500 miles. It will allow the rings to break in, but does NOT have the protection for 8K running. Just take it easy, keep the revs below 6K, and ride the 500 miles. I would then go to a regular 10-40 or 20-50, depending if it's winter or summer. Another 1K miles, oil and filter once again, and you should be ready to go.
                      Do NOT put any type of synthetic in for the first 5K miles. It WILL keep the rings from seating.
                      Ray
                      Ray Matteis
                      KE6NHG
                      XS1100 E '78 (winter project)
                      XS1100 SF Bob Jones worked on it!

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                      • #26
                        I know one guy that builds car engines that runs them for a few minutes with...are you sitting down?... NO OIL!

                        He says it helps the rings seat. He's never had one lock up or had it returned.

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                        • #27
                          I have heard of running an engine without coolant for a while to seat the rings, but not with oil. I guess you could get by for a short time if you used a good pre lube on all bearings, and the cylinder walls first.

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                          • #28
                            I don't use synthetic....YMMV.
                            In the past wit auto engines (and my 400 I raced) was slow accelleration with sharp chops of the throttle (engine braking) to draw oil to the rings.
                            A fellow racer, Pat Egan (400cc box-stock and street production national champion) recommended this method only he went to redline. I avoid redline for a while.
                            The fun part with this project is doing it without SWMOB realizing what I'm doing (or how much it costs).
                            PO was askingif the bike comes up for sale he'd like first chance at it. Price just doubled. I bought the bike for $500. Now about $650 is going into it.

                            W-K1196 kit
                            base gasket
                            O rings (4)
                            valve stem seals (8)
                            Pat Kelly
                            <p-lkelly@sbcglobal.net>

                            1978 XS1100E (The Force)
                            1980 XS1100LG (The Dark Side)
                            2007 Dodge Ram 2500 quad-cab long-bed (Wifes ride)
                            1999 Suburban (The Ship)
                            1994 Dodge Spirit (Son #1)
                            1968 F100 (Valentine)

                            "No one is totally useless. They can always be used as a bad example"

                            Comment


                            • #29
                              Are you kidding? If I did that ...with my luck...the engine would seize in about 10 seconds.

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                              • #30
                                I was reffereing to NO OIL.

                                Ya know this time limit on editing is a real pain in the ass. I wished one of you moderators would change that ot at least give it an hour or so. 5 minutes is way to short.

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