Left flywheel cover

Discussion in 'Concours Section' started by scooter, Sep 15, 2017.

  1. scooter

    scooter Well-Known Member

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    IMG_1890.JPG IMG_1891.JPG IMG_1892.JPG just picked up a NOS flywheel cover for a CT70. I believe ther are three versions starting with one for the earliest vins that is one piece and comes from the z50 then the two piece then a one piece. I have the following NOS ones that i thought were the same and were from the Z50 but they are actually different. One has black lettering and made in Japan letters and spacing are different. Thinking no black lettering one piece is from Z50 (earliest). The two piece follows in sequence. How about the one with black letter. CT70, Z50 ???
     
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  3. hornetgod

    hornetgod Well-Known Member

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    I'm not 100% sure but, Kirby will know. He schooled me a little on the early Z50 covers. I'm sure he will chime in when he sees this thread.
     
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  4. kirrbby

    kirrbby Well-Known Member

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    I'm still not able to post pics from my phone.

    I'll try to get a real pic up later.

    But, top left is a longtail cover that was used on Z50 K0 and early K1's.

    Below that is the mid K1 thru K2 Z50 cover that was also used on the early silvertag CT70's.

    Top right is a Z50 K3 up. But I don't know anything about the paint, or no paint in the lettering. I do know I've seen them both ways, and I seen at least one with red paint in there..?

    Bottom right is the regular 2 piece CT70 cover.

    Scooter, if you look at the back side of your Z50 covers, are they different? Are they different than my K3 up cover? I know that the replacement covers that are still available new are made different on the back side than the originals.

    I recently learned that there are at least 3 different versions of the 12v flywheel covers too.
     
    #3 kirrbby, Sep 15, 2017
    Last edited: Sep 15, 2017
  5. scooter

    scooter Well-Known Member

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    Kirby - can't see your pics yet. No rush just trying to accurately mark what I have. I picked these up from old Honda shops and don't believe I have one tag for the one piece type 11341-045-030 but don't know which of the two single body (no removable point cover)it was on. I think it belongs with the no paint version. The two piece is CT70 11341-098-010. Trying to confirm which of the two single bodies is the 11341-045-030. And what part number/bike does the other one go on. CT70 or Z50 and which model. Once I see your pics probably be easy to match up the tag
     
  6. scooter

    scooter Well-Known Member

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    Looking at the backs and what is posted for the new still available. And think I've got it no paint one piece is old original z50. The black letter one piece is matching what is still available from Honda. If I compare with one on eBay they match front and back
     
  7. kirrbby

    kirrbby Well-Known Member

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    But, top left is a longtail cover that was used on Z50 K0 and early K1's.

    Below that is the mid K1 thru K2 Z50 cover that was also used on the early silvertag CT70's.

    Top right is a Z50 K3 up. But I don't know anything about the paint, or no paint in the lettering. I do know I've seen them both ways, and I seen at least one with red paint in there..?

    Bottom right is the regular 2 piece CT70 cover.

    Scooter, if you look at the back side of your Z50 covers, are they different? Are they different than my K3 up cover? I know that the replacement covers that are still available new are made different on the back side than the originals.

    I recently learned that there are at least 3 different versions of the 12v flywheel covers too.


    100_7969.JPG 100_7969.JPG 100_7970.JPG 100_7968.JPG
     
  8. scooter

    scooter Well-Known Member

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    IMG_1893.JPG

    The top one is the no paint early version z50 and the bottom is the currently available cover which has the black paint in the letters.

    Think I got it. Thanks
     
  9. kirrbby

    kirrbby Well-Known Member

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    Your early version is what I referred to as the K3 up...top right in my pics.

    My bottom left is the hardtail version. Same as k3up except for the small beveled section on the lower right side of the cover.
     
  10. scooter

    scooter Well-Known Member

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    Kirby - thanks for all the explaining
     
  11. racerx

    racerx Administrator
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    That explains why Cloud Silver looked like the current iteration...because it is.

    A cherry for the top of this purist sundae...there was a flywheel-cover-to-LH-case gasket, in addition to the points inspection cover gasket. They vanished from gasket kits and parts catalogs sometime in the dim & distant past becoming nearly impossible to find by the late `90s. Originally, the alternator was intended to be a watertight assembly.
     
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  12. Gary

    Gary Well-Known Member

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    Interesting did not know that Bob,I have never seen one on the small bikes. My TL has a gasket only because the points run off the cam and the flywheel,mounted backwards and with the coils mounted in the cover,actually runs in the oil. My MR being an enduro bike but a 2 stroke has a flywheel and points very similar to the mini's but does have a gasket. And I might add was hard to find.
     
  13. scooter

    scooter Well-Known Member

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    IMG_1894.JPG
    I found one of those gaskets in my stash. Thought I'd share so folks could see the shape of it
     
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  14. kirrbby

    kirrbby Well-Known Member

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    Nice.
    I've seen so little of these gaskets, or even mention of them. I've never seen any remnants of a gasket in that area. I've never seen one listed on ANY parts diagram.
    I kinda thought they were never really made or used by Honda.

    Next time I have a opportunity, I'll probably buy one now. Then use it as a pattern to carve a few out. If i have them available, I'll use them. At least on the keepers.
     
  15. scooter

    scooter Well-Known Member

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    When I get a minute I'll scan it and post it for use as a template
     
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  16. racerx

    racerx Administrator
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    Looks like a difficult shape to cut by hand. There are outfits that will make custom gaskets, CNC-cut, from a template (which could be an old gasket); best guess $10 a pop for these but I could be way off. For the dedicated purist, that should be reasonable enough.

    Have to wonder if a stator plate O-ring could be adapted. It's thin, as O-rings go and compressible. A single slice would allow you to increase the diameter to match the mating surfaces. A little weatherstrip adhesive, applied to the cover, would hold it in place. And a teensy dab of RTV could then be use to seal the gap, which you'd located at the 12 o'clock position. From a purely practical standpoint, RTV could be applied to the cover, then allowed to cure before installing it. I usually cringe at the thought of gasket sealer, let alone RTV silicone, use on these motors but, this is safe enough and accessible enough to clean, if one uses too much. IMHO, you'd want a layer that's thinner than the paper gasket; that, plus pre-curing, should eliminate the old, dreaded, squish-out.
     
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  17. allenp42

    allenp42 Active Member

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    I have never seen a gasket before. And like Kirby, never seen any remnants of a gasket on the few that I've touched.

    Interesting thread.
     
  18. scooter

    scooter Well-Known Member

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    I'll make some calls and get some pricing details relative to getting some made. Then I'll see if there is any interest from others.
     
  19. Gary

    Gary Well-Known Member

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    I Thought I'd look in my microfitch stash- for sure if any had it it would be the the first one,the CS50/65. But no the microfitch is dated 8/93 and has most likely been updated
     
  20. scooter

    scooter Well-Known Member

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    Kirby - Nice bit of research
     
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