Swifty's build of Howell V4

Discussion in 'A Work In Progress' started by Swifty, Mar 2, 2015.

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  1. May 21, 2019 #441

    dsage

    dsage

    dsage

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    As shown if you extend the face of the one cylinder bank out (perhaps with a flat plate or something) it's giving you the measurement to the corner of the other bank. This will be important when you fit the intake manifold on the top of the block. If it's not correct the monifold won't fit properly.
    I guess if you do everything else correct this measurement will be automatic. But it can / should be used as a double check and probably should be laid out on the end of the block as a guide to be sure you hit it right on doing the other machining.
    Not sure about his orientation suggestion. Whatever way you choose to get everything at the correct angles is the right way.
     
    Last edited: May 22, 2019
  2. May 22, 2019 #442

    bluejets

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    There may have been some concern with backlash.
     
  3. May 28, 2019 #443

    johnstij

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    Can anybody tell me the size of the O rings at the bottom of the cylinders.
    In fact is there a list of all the O ring sizes used any where.
    Thank you
    Ian
     
  4. May 29, 2019 #444

    lantain1982

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    Hi Ian, The "O" rings for the bottom of the cylinder bores are 1/16th section by 1" ID.
    I have the complete "O" chart as supplied in the Howell kit if you require
    any more info.
    Bill.
     
  5. May 29, 2019 #445

    johnstij

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    Hi Bill.
    Thanks for your reply.
    Is it possible for you to send me the list ? Also is there a list of bearings used?
    I'm not sure how you sent a personal message to a member on this forum.
    Ian
     
  6. Nov 16, 2019 #446

    johnstij

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    My cams (Medium).JPG My cams 2 (Medium).JPG Hello.I'm making progress in building the Jerry Howell V4 from the plans I purchased.I'm at the cam shaft stage and have managed to confuse my self ( nothing unusual about that !) I have made the cam pairs as the plans> ie "handed" for cylinders 1,2 and 3,4 and assembled them on the shafts as per Jerry's method and they look the same as his.. My question is are both Cam shafts (cylinders 1 & 3 and cylinders 2 & 4) identical because I've seen photos on the internet which would suggest they are "handed" ? Attached is a photo of my Cam shafts. I would appreciate your comments/advise on this.
    >
    > Regards Ian
     
    Last edited: Nov 16, 2019
  7. Nov 17, 2019 #447

    Lister4

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    The 3 and 4 cams are supposed to be reversed on the shafts from what the 1 and 2 are.
    Regards,
    Bob
     
  8. Nov 17, 2019 #448

    Lister4

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    Meant to write 1 and 3, 2 and 4

    Sorry
    Bob
     
  9. Nov 18, 2019 #449

    johnstij

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    Hi Bob
    Thanks for your reply, I'm not sure I understand what you mean by reversed ?
    Ian
     
  10. Nov 18, 2019 #450

    Lister4

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    The cam pairs are mounted so the exhaust lobes are facing the ends of the shaft.
    Hope this helps!
    Regards,
    Bob
     
  11. Nov 18, 2019 #451

    johnstij

    johnstij

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    Thanks for that Bob, I understand that the exhaust lobes face the ends of the shaft. It's the orientation of the two cam pairs on each shafts I'm not sure about. As you can see on my photos both cam shafts are the same, is this correct?
    Ian
     
  12. Nov 18, 2019 #452

    Lister4

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    Hi Ian,
    Yes both shafts are the same. Do you have the cam gear timing info? If not, it is available on the Howell V4 web site.
    Regards,
    Bob
     
  13. Nov 18, 2019 #453

    johnstij

    johnstij

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    Hi Bob.
    Thanks for that conformation I can sleep easy tonight :)

    Regards Ian
     

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