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  1. #1
    Resident electronics hacker UnityRacing's Avatar
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    What cylinders are these?!



    Exhaust valves and red heads on a DI, with no stator cooling ??


  2. #2
    800AMSOIL4U's Avatar
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    I do not see power valves in that motor. Just a plate on top.

  3. #3
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    That looks like it may be some sort of bastard motor. Those dont look like MSX heads. Definitely MSX cases. The cylinders are either MSX cylinders or possibly sled cylinders, with the exhaust valve opening blocked off by the plates. If thats the case I dont see how it could possibly run well in a ski.

  4. #4
    800AMSOIL4U's Avatar
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    What is the part number on the bottom of the cylinder?

  5. #5
    Connecticut CrazyA's Avatar
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    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  6. #6
    Resident electronics hacker UnityRacing's Avatar
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    Sorry I should have been more specific - "provisions for power valves"

    They look to have the cooling ports by the exhaust. I *thought* that was an MSX only thing for these cylinders. Heads look to be virage/genesis style.
    *I* don't see a provision for oiling the MAG bearing. Possibly not even MSX cases.

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by Mr. Matrix View Post
    That looks like it may be some sort of bastard motor. Those dont look like MSX heads. Definitely MSX cases. The cylinders are either MSX cylinders or possibly sled cylinders, with the exhaust valve opening blocked off by the plates. If thats the case I dont see how it could possibly run well in a ski.
    I agree.

    The cylinder head bolts are not even snugged down on the middle cylinder. The fuel injector on CEN head is actually the PTO injector, possibly from a two cylinder Ficht motor, as the injector fuel hose fittings are not teed, they are elbows. PTO injector hoses are cut off, not linked to center injector.

    Stator cover is from a carburetor engine. Doesn't look like a CPS crank sensor mounting, more like a carb engine timing inspection cap.

    The 'exhaust valve' cover on CEN is different from the other two.

  8. #8

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    that's a marto motor


  9. #9

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    would be interesting to see under the covers to see if they are machined for exhaust valves

  10. #10
    Resident electronics hacker UnityRacing's Avatar
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    I think the video is a few years old. Probably long gone by now. I found it while looking for pictures of heads.

    Speaking of... could a few of you look on the stickers of your 140 heads and tell me if the part numbers are all the same? The 3 motors I have gotten have all been touched at one point or another, so I cannot reliably tell.

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